Feet and Inches to Centimeters or Meters Converter
Popular Height Conversions (People Also Ask)
How many cm is 5 feet 5 inches (5'5")?
5 feet 5 inches equals 165.1 cm. Calculation: (5 × 30.48) + (5 × 2.54) = 152.4 + 12.7 = 165.1 cm. This is a common height for adult women in many countries. If you're tracking your health, you can use our BMI calculator with this height measurement.
What height is 5 feet 11 inches (5'11") in cm?
5 feet 11 inches equals 180.34 cm, or approximately 1.80 meters. This is above average height for men in most countries and is considered tall in many populations. To convert back to feet, use our cm to feet and inches converter.
How tall is 6 feet (6'0") in cm?
6 feet (72 inches) equals 182.88 cm, or 1.83 meters. This is considered tall in most countries. It's a milestone height often used as a reference point in sports and modeling.
What is 5 feet 2 inches (5'2") in cm?
5 feet 2 inches equals 157.48 cm. Calculation: (5 × 30.48) + (2 × 2.54) = 152.4 + 5.08 = 157.48 cm. This is average height for adult women in many countries. For weight conversions, see our kg to lbs converter.
Feet and Inches to cm Chart
Note: This table shows heights from 2 to 7 feet. Click the link icon to share a specific conversion.
Complete Guide: Feet & Inches to Centimeters Conversion
This guide shows you how to convert feet and inches to centimeters (and meters), providing clear methods for height measurements, construction projects, international shipping, architectural plans, and cross-border commerce. We've operated this calculator for over a decade and noticed most searches come from people converting US measurements for international use, contractors working with metric specifications, and travelers needing metric equivalents.
Understanding Imperial and Metric Units: History and Modern Usage
The Foot and Inch: American and British Standards
The foot (12 inches) and inch originated from human body parts - the foot from an actual foot length, and the inch from a thumb width. Since the 1959 International Yard and Pound Agreement, these units have exact metric definitions: 1 foot = 30.48 centimeters exactly and 1 inch = 2.54 centimeters exactly. These conversions are internationally standardized and used worldwide for imperial-to-metric calculations.
Where you'll use feet and inches: US construction and architecture, height measurements in America and UK, real estate listings in the United States, lumber dimensions (2×4, 2×6 boards), plumbing specifications (½-inch pipe), room dimensions in American homes, ceiling heights, door and window measurements, and athletic measurements in US sports.
The Centimeter: Universal Metric Standard
The centimeter is part of the International System of Units (SI), the world's most widely used measurement system. One centimeter equals exactly 0.01 meters or 10 millimeters. The relationship to inches was precisely defined in 1959: 1 inch = 2.54 centimeters exactly, making this the foundation for all imperial-to-metric length conversions.
Where you'll use centimeters: height measurements in most countries worldwide, medical measurements, clothing sizes internationally, furniture dimensions from European and Asian manufacturers, scientific measurements, screen sizes in many regions, construction in metric countries, and international product specifications. Fun fact: over 95% of the world's population uses the metric system primarily.
The Meter: Base Unit of Length
The meter is the fundamental unit of length in the SI system. Since 1983, it's defined by the speed of light in vacuum, making it extraordinarily precise. For practical conversions: 1 meter = 100 centimeters, 1 meter = 39.3701 inches, and 1 meter ≈ 3.28084 feet.
Where you'll use meters: room dimensions internationally, swimming pool lengths, track and field events, building heights outside the US, surveying and mapping, fabric sold by the meter, scientific research, and international trade. In most countries, you'd describe a room as "5 meters by 4 meters" rather than "16 feet by 13 feet."
Real-World Conversion Scenarios
Height Measurements
People constantly ask us about height conversions to metric for international documents. For example, 5 feet 9 inches equals 175.26 cm - a common adult male height. For passport applications and visa forms, converting US height to centimeters is essential: 6 feet 2 inches equals 187.96 cm. Athletes submitting stats to international competitions find that 6 feet 6 inches converts to 198.12 cm.
Construction and Architecture
We see lots of queries from contractors converting US plans to metric for international projects. A standard 8-foot ceiling equals 243.84 cm or 2.44 meters - essential for ordering materials abroad. Architects converting room dimensions for overseas clients need precise values: a 12-foot by 10-foot room is 365.76 cm by 304.8 cm (or 3.66 m × 3.05 m).
International Shipping and E-commerce
Online sellers regularly convert product dimensions for international listings. A 24-inch monitor measures 60.96 cm wide - critical for European customers checking desk space. Shipping companies calculate package dimensions in centimeters: a 36-inch by 24-inch by 12-inch box is 91.44 × 60.96 × 30.48 cm.
Travel and Accommodation
Travelers booking international hotels convert bed sizes to metric. A US queen bed (60 inches × 80 inches) measures 152.4 cm × 203.2 cm. When renting apartments abroad, understanding that a 10-foot by 12-foot bedroom is 3.05 × 3.66 meters helps visualize the space.
Popular Height Conversions
Quick links to the most searched height conversions:
- 5'0" to cm (152.4 cm)
- 5'2" to cm (157.5 cm)
- 5'3" to cm (160.0 cm)
- 5'4" to cm (162.6 cm)
- 5'5" to cm (165.1 cm)
- 5'7" to cm (170.2 cm)
- 5'9" to cm (175.3 cm)
- 5'10" to cm (177.8 cm)
- 5'11" to cm (180.3 cm)
- 6'0" to cm (182.9 cm)
- 6'2" to cm (188.0 cm)
- 6'5" to cm (195.6 cm)
Technical Definitions and Conversion Factors
Definition of Foot
- Definition
- Foot (ft) — an imperial/US customary unit equal to 12 inches or 0.3048 meters exactly. Standardized internationally in 1959 by the International Yard and Pound Agreement.
- Exact factors
-
1 ft = 12 in (exact)
1 ft = 0.3048 m (exact)
1 ft = 30.48 cm (exact) - Common equivalents
-
- 1 ft = 304.8 millimeters
- 1 ft = 0.333333 yards (1/3 yard)
- 3.28084 ft ≈ 1 meter (derived)
- Official sources
Definition of Inch
- Definition
- Inch (in) — an imperial unit of length equal to exactly 2.54 centimeters. This exact relationship, established in 1959, is the foundation for all imperial-to-metric length conversions.
- Exact factor
- 1 in = 2.54 cm (exact by international agreement)
- Common equivalents
-
- 1 in = 0.0254 meters (exact)
- 1 in = 25.4 millimeters (exact)
- 1 in = 0.0833333 feet (1/12 foot)
- 39.3701 in = 1 meter (derived)
- Official sources
Definition of Centimeter
- Definition
- Centimeter (cm) — a metric unit of length equal to one-hundredth of a meter. Part of the International System of Units (SI), used worldwide as the standard measurement system.
- Exact factors
-
1 cm = 0.01 m (exact)
1 cm = 10 mm (exact)
1 cm = 0.393701 inches (derived from 1 in = 2.54 cm exactly) - Common equivalents
-
- 1 cm ≈ 0.393701 inches
- 1 cm ≈ 0.0328084 feet
- 2.54 cm = 1 inch (exact)
- 30.48 cm = 1 foot (exact)
- Official sources
Definition of Meter
- Definition
- Meter (m) — the base unit of length in the International System of Units (SI). Since 1983, defined as the distance light travels in vacuum in 1/299,792,458 of a second.
- Exact factors
-
1 m = 100 cm (exact)
1 m = 1000 mm (exact)
1 m ≈ 39.3701 inches (derived)
1 m ≈ 3.28084 feet (derived) - Common equivalents
-
- 1 m ≈ 39.3701 inches
- 1 m ≈ 3.28084 feet
- 1 m ≈ 1.09361 yards
Step-by-Step Conversion Examples
Example 1: Converting 5 feet 9 inches to centimeters
Practical use: Average adult male height in the US - needed for international documents, medical records, and visa applications
Step 1: Convert feet to inches
First, convert everything to inches (since 1 foot = 12 inches)
5 feet × 12 inches/foot = 60 inches
Add the remaining inches: 60 + 9 = 69 inches total
Step 2: Convert inches to centimeters
Use the exact conversion: 1 inch = 2.54 cm
69 inches × 2.54 cm/inch = 175.26 cm
Alternative: Convert to meters
175.26 cm ÷ 100 = 1.7526 meters (or 1.75 m rounded)
Final result: 5 feet 9 inches = 175.26 cm or 1.75 m
Context: This is the average height for adult males in the United States.
Example 2: Converting 6 feet 2 inches to centimeters
Practical use: Tall adult height - important for international sports registration, customs forms, and doorway clearances abroad
Conversion process
6 feet × 12 = 72 inches
72 + 2 = 74 inches total
74 × 2.54 = 187.96 cm
187.96 ÷ 100 = 1.88 meters
Result: 6 feet 2 inches = 187.96 cm or 1.88 m
This is considered tall in most countries and may require noting on international travel documents.
Example 3: Converting 8 feet 0 inches to centimeters
Practical use: Standard US ceiling height - critical for international construction projects and shipping container dimensions
Calculation
8 feet × 12 = 96 inches
96 + 0 = 96 inches
96 × 2.54 = 243.84 cm
= 2.44 meters (or 2.4384 m precisely)
Mental shortcut: Remember that 1 foot = 30.48 cm, so 8 × 30.48 = 243.84 cm. This is faster for whole-foot measurements.
Example 4: Converting 5 feet 6 inches to centimeters
Practical use: Average adult female height in the US - needed for clothing orders from international retailers and medical documentation
Step-by-step calculation
5 feet × 12 = 60 inches
60 + 6 = 66 inches
66 × 2.54 = 167.64 cm
= 1.68 meters
Result: 5 feet 6 inches = 167.64 cm or 1.68 m
Context: This is approximately the average height for adult women in the United States.
Example 5: Converting 10 feet 6 inches to centimeters
Practical use: Basketball hoop height plus backboard - relevant for international sports facility construction
Calculation
10 feet × 12 = 120 inches
120 + 6 = 126 inches
126 × 2.54 = 320.04 cm
= 3.20 meters
Note: A regulation basketball hoop is 10 feet (304.8 cm or 3.048 m).
Quick Reference Chart: Common Height Conversions
Keep these handy for quick reference:
- 4 feet 11 inches = 149.86 cm ≈ 1.50 m
- 5 feet 0 inches = 152.40 cm ≈ 1.52 m
- 5 feet 3 inches = 160.02 cm ≈ 1.60 m
- 5 feet 6 inches = 167.64 cm ≈ 1.68 m (average US female)
- 5 feet 9 inches = 175.26 cm ≈ 1.75 m (average US male)
- 6 feet 0 inches = 182.88 cm ≈ 1.83 m
- 6 feet 3 inches = 190.50 cm ≈ 1.91 m (tall)
- 6 feet 6 inches = 198.12 cm ≈ 1.98 m (very tall)
- Quick rule: Convert feet to inches (×12), add inches, multiply by 2.54
Conversion Formula Summary
Method 1: Standard conversion (feet+inches → inches → centimeters)
- Multiply feet by 12 to convert to inches
- Add any additional inches to get total inches
- Multiply total inches by 2.54 to get centimeters
- Optionally divide by 100 to convert to meters
Formula: cm = (feet × 12 + inches) × 2.54
Method 2: Separate conversion (for mental math)
- Convert feet to centimeters: feet × 30.48
- Convert inches to centimeters: inches × 2.54
- Add both values together
Formula: cm = (feet × 30.48) + (inches × 2.54)
Pro tip: For height measurements, keep 2 decimal places (175.26 cm). For construction, you may want to round to the nearest millimeter or even centimeter depending on precision requirements.
Quick Reference: Feet+Inches to Centimeters Comparison Table
| Feet+Inches | Total Inches | Centimeters | Meters | Common Use |
|---|---|---|---|---|
| 4′0″ | 48 in | 121.92 cm | 1.22 m | Child height |
| 5′0″ | 60 in | 152.40 cm | 1.52 m | Petite adult |
| 5′3″ | 63 in | 160.02 cm | 1.60 m | Common height |
| 5′6″ | 66 in | 167.64 cm | 1.68 m | Average female (US) |
| 5′9″ | 69 in | 175.26 cm | 1.75 m | Average male (US) |
| 6′0″ | 72 in | 182.88 cm | 1.83 m | Tall adult |
| 6′3″ | 75 in | 190.50 cm | 1.91 m | Very tall |
| 6′6″ | 78 in | 198.12 cm | 1.98 m | Basketball height |
| 8′0″ | 96 in | 243.84 cm | 2.44 m | Ceiling height |
| 10′0″ | 120 in | 304.80 cm | 3.05 m | Basketball hoop |
Common Conversion Mistakes to Avoid
Mistake 1: Forgetting to convert feet to inches first
You can't multiply feet directly by 2.54! You must first convert feet to inches (×12), then add any remaining inches, THEN multiply by 2.54. Converting 5 feet 9 inches is NOT (5 × 2.54) + (9 × 2.54) = 35.56 cm (wrong!). It's (5 × 12 + 9) × 2.54 = 175.26 cm (correct).
Mistake 2: Using 2.5 instead of 2.54
The exact conversion is 1 inch = 2.54 cm, not 2.5. This small difference adds up: 69 inches × 2.5 = 172.5 cm (wrong) vs 69 × 2.54 = 175.26 cm (correct) - that's almost 3 cm error!
Mistake 3: Mixing up decimal points
Remember: 1 foot = 30.48 cm (not 3.048 or 304.8). A misplaced decimal makes your answer 10x or 100x wrong. Double-check your decimal placement!
Mistake 4: Rounding too aggressively
For heights, keep at least 2 decimal places until the end. Rounding 5.7415 feet to 6 feet before converting gives 182.88 cm instead of the correct 175.26 cm - a huge 7+ cm error!
Practical Applications and Tips
International Documentation
When filling out forms for metric-using countries:
- Passport and visa applications usually want height in cm
- Medical records and prescriptions in metric countries
- Driver's license applications abroad
- Insurance and identification documents
- School and university enrollment forms
International Shipping and E-commerce
Selling or shipping products internationally:
- Convert package dimensions for customs forms (always in cm)
- List furniture dimensions for international buyers
- Specify product sizes for global marketplaces (Amazon, eBay)
- Calculate shipping costs using metric dimensions
- Ensure products fit international standard sizes
Construction and Engineering
Working on international projects or with metric specifications:
- Convert US building plans to metric for overseas contractors
- Order materials from international suppliers (metric sizes)
- Verify that US equipment fits metric building dimensions
- Calculate ceiling heights, room dimensions for metric countries
- Convert pipe sizes, electrical conduit measurements
Sports and Fitness
International athletic competitions use metric:
- Register height for international sports leagues
- Olympics and world championships use cm/m exclusively
- Soccer, basketball, volleyball international play
- Track and field measurements are all metric
- Compare equipment sizes across countries
Travel and Relocation
Moving to or traveling in metric countries:
- Understand apartment dimensions in cm/m before renting
- Check if US furniture fits in metric spaces
- Verify bed sizes (US queen vs European 160 cm)
- Understand height restrictions (amusement parks, vehicles)
- Medical facilities will use cm for all measurements
Frequently Asked Questions
Why is 1 inch exactly 2.54 cm?
In 1959, English-speaking countries signed the International Yard and Pound Agreement, defining 1 yard = 0.9144 meters exactly. Since 1 yard = 36 inches, this makes 1 inch = 2.54 cm exactly. This ensures consistent conversions worldwide and is used by NIST, BIPM, and all international standards organizations.
Should I convert feet first or inches first?
Always convert feet to inches first (multiply by 12), add any remaining inches, then multiply by 2.54. This is simpler and more accurate than converting feet and inches separately then adding.
Do I need to convert to meters or is centimeters enough?
For height measurements, centimeters are standard (e.g., 175 cm). For room dimensions and larger measurements, meters are more common (e.g., 3.5 m). Generally: heights in cm, distances and room sizes in m.
How precise should my conversion be?
It depends on usage:
- Height measurements: 2 decimal places (175.26 cm) or round to nearest cm (175 cm)
- Construction: 1-2 decimal places or nearest mm for precision work
- Casual estimates: Nearest cm or even nearest 5 cm is fine
- Scientific/engineering: Keep full precision (4-5 decimal places)
Can I use 30.5 instead of 30.48 for feet to cm?
Only for rough estimates. Using 30.5 gives 6 feet = 183 cm (actual: 182.88 cm) - about 0.12 cm error per foot. For most purposes, use the exact 30.48 factor.
Why Trust Our Feet-Inches-to-Centimeters Converter?
This converter is built on exact international measurement standards established by the 1959 International Yard and Pound Agreement. Whether you're converting height for international documentation, preparing architectural specifications, or understanding product dimensions, our tool delivers precise, reliable conversions.
Real-World Experience
International Documentation
- Visa applications: U.S. heights in feet-inches must be converted to cm for international forms
- Medical records transfer: Converting American medical records (ft-in) to metric for overseas hospitals
- Sports eligibility: Height requirements for international competitions use centimeters
- Immigration forms: Most countries require height in cm, not feet-inches
Construction and Engineering
- International projects: U.S. contractors bidding on metric projects need accurate conversions
- Material specifications: Converting ceiling heights (8 ft = 243.84 cm) for European suppliers
- Door frames: Standard 6'8" door = 203.2 cm (critical for international orders)
- Building codes: Converting U.S. building standards to metric for compliance
E-Commerce and Manufacturing
- Product listings: Amazon requires both inch and cm dimensions for international sales
- Clothing manufacturing: Converting U.S. size specs to Asian/European metric patterns
- Shipping dimensions: International carriers require cm for package dimensions
- Furniture exports: Converting U.S. furniture dimensions for metric market catalogs
Technical Expertise
Exact Conversion Standards
Our converter implements the official international definition:
- 1 inch = 2.54 centimeters exactly (by definition since 1959)
- 1 foot = 12 inches = 30.48 cm exactly
- Mixed units: (feet × 30.48) + (inches × 2.54) = total cm
- Zero conversion error: Result exact to floating-point precision limits
Conversion Methodology
Our calculation process:
- Step 1: Convert feet to cm (feet × 30.48)
- Step 2: Convert inches to cm (inches × 2.54)
- Step 3: Add results for total cm
- Step 4: Round to appropriate precision for display
Common Conversions Verified
- 5'0" = 152.4 cm (exactly - common reference height)
- 5'10" = 177.8 cm (exactly - average male height in U.S.)
- 6'0" = 182.88 cm (≈ 183 cm when rounded)
- 6'8" = 203.2 cm (standard door height)
- 8'0" = 243.84 cm (standard ceiling height)
Precision Handling
- Input flexibility: Accepts fractional inches (e.g., 5'10.5")
- Decimal places: Default 1 decimal (sufficient for height), up to 2 for precision work
- No rounding errors: Calculation uses full precision, rounds only for display
- Validation: Rejects invalid inputs (negative values, non-numeric characters)
Common Mistakes Avoided
- Error: "6 feet = 180 cm" (approximate)
Correct: 6 feet = 182.88 cm (exact) - 2.88 cm difference matters - Error: Converting inches separately then adding
Correct: Total inches first: (feet × 12 + inches) × 2.54 = correct cm - Error: Using 2.5 instead of 2.54 for inch conversion
Correct: 2.54 exactly - 1.6% error with 2.5
Authoritative Sources
International Standards
- NIST Special Publication 811: Guide for the Use of the International System of Units (SI)
- ISO 80000-3:2019: Quantities and units - Part 3: Space and time
- BIPM: International Bureau of Weights and Measures - official SI definitions
- Federal Register Vol. 24, No. 134 (1959): U.S. adoption of 1 inch = 2.54 cm exactly
Historical Foundation
- 1959: International Yard and Pound Agreement defines inch = 2.54 cm exactly
- 1960: SI system officially established, centimeter defined as 0.01 meter
- 1983: Meter redefined based on speed of light (exact, no measurement uncertainty)
- 1988: U.S. Omnibus Trade Act designates metric as preferred system
Industry Recognition
- WHO: World Health Organization uses cm for international health standards
- FAA: Federal Aviation Administration accepts metric conversions for aircraft dimensions
- ASTM: American Society for Testing and Materials references exact inch-cm conversion
- ISO: International Organization for Standardization - global measurement harmonization
Educational Alignment
- Conversion factor verified against NIST Handbook 44 (Specifications, Tolerances, and Other Technical Requirements for Weighing and Measuring Devices)
- Methodology consistent with NIST Guide to SI Units
- Precision practices follow ASTM E29 (Standard Practice for Using Significant Digits)
Trustworthiness and Verification
How We Ensure Accuracy
- Exact conversion factor: 1 inch = 2.54 cm (by international definition - zero tolerance)
- Transparent calculation: (feet × 30.48) + (inches × 2.54) = cm (formula always visible)
- Reverse verification: cm ÷ 2.54 = total inches (should match input)
- Known benchmarks: Cross-check against verified heights (6'0" = 182.88 cm, 5'0" = 152.4 cm)
- Real-time calculation: No lookup tables - every conversion computed fresh
Precision Guarantee
Accuracy: Exact to definition (zero conversion error)
- Conversion factor is exact by international agreement (no approximation)
- Internal calculations use 64-bit floating-point (15-17 significant digits)
- Display rounding only affects final presentation, not calculation accuracy
- Example: 5'10.25" = (5 × 30.48) + (10.25 × 2.54) = 152.4 + 26.035 = 178.435 cm (exact)
Privacy and Security
- Client-side processing: Conversion math runs entirely in your browser; the values you enter are never sent to our servers
- Open methodology: Conversion formula publicly disclosed and verifiable (1 in = 2.54 cm exactly)
Limitations and Scope
- Input range: Accepts 0 to 999 feet and 0 to 999 inches
- Display precision: Default 1 decimal place (0.1 cm ≈ 0.04 inches) - adequate for all practical purposes
- Measurement vs. conversion: Tool converts mathematically; actual measurement accuracy depends on measuring device
- U.S. survey foot: This converter uses international foot (since 2023, U.S. survey foot deprecated)
About This Converter
Developed by measurement professionals with expertise in international standards compliance, engineering documentation, and global commerce. Last updated: April 2026. Conversion factors verified against NIST SP 811, ISO 80000-3:2019, and BIPM SI Brochure (9th edition).
Report Issues: Found a discrepancy or calculation error? Contact us immediately. We take accuracy seriously and investigate every report within 24 hours. All verified issues result in prompt corrections and methodology updates.
Bottom line: This converter implements the exact international standard (1 inch = 2.54 cm) with zero conversion error. The result is mathematically exact to floating-point precision limits. Use confidently for medical documentation, international forms, construction specifications, e-commerce, or any application requiring precise feet-inches to centimeter conversions.
This video explains how to convert a height given in feet and inches to inches, centimeters, and meters.
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All unit conversions on CoolConversion use conversion factors defined or documented by internationally recognised standards bodies (such as ISO and NIST), including both SI and non-SI units.
