Inches to Centimeters Conversion Table — Fractional & Decimal (1/64" to 100")
Complete reference: 64 fractional sizes + whole inches 1-100
Any length-distance value in in can be converted to cm using the conversion factor:
- 1 inch = 2.54 centimeter
- cm = in x 2.54
in → cm Quick Converter
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What is Inch (in)?
Imperial/US customary unit standardized as exactly 25.4 millimeters since 1959.
What is Centimeter (cm)?
Metric unit equal to one hundredth (1/100) of a meter.
How to Convert Inch to Centimeter
Example
Convert 11 in to cm:
11 × 2.54 = 27.94 cm
Inches to Centimeters Conversion Table — Fractional & Decimal (1/64" to 100")
Values from 1 to 100 in.
Fractional Inches to Centimeters
Standard fractional inch values with decimal inch and centimeter equivalents. All values exact (1 in = 2.54 cm).
| Fraction | Decimal (in) | cm |
|---|---|---|
| 1/64" | 0.0156 | 0.040 |
| 1/32" | 0.0313 | 0.079 |
| 3/64" | 0.0469 | 0.119 |
| 1/16" | 0.0625 | 0.159 |
| 5/64" | 0.0781 | 0.198 |
| 3/32" | 0.0938 | 0.238 |
| 7/64" | 0.1094 | 0.278 |
| 1/8" | 0.1250 | 0.318 |
| 9/64" | 0.1406 | 0.357 |
| 5/32" | 0.1563 | 0.397 |
| 11/64" | 0.1719 | 0.437 |
| 3/16" | 0.1875 | 0.476 |
| 13/64" | 0.2031 | 0.516 |
| 7/32" | 0.2188 | 0.556 |
| 15/64" | 0.2344 | 0.595 |
| 1/4" | 0.2500 | 0.635 |
| 17/64" | 0.2656 | 0.675 |
| 9/32" | 0.2813 | 0.714 |
| 19/64" | 0.2969 | 0.754 |
| 5/16" | 0.3125 | 0.794 |
| 21/64" | 0.3281 | 0.833 |
| 11/32" | 0.3438 | 0.873 |
| 23/64" | 0.3594 | 0.913 |
| 3/8" | 0.3750 | 0.953 |
| 25/64" | 0.3906 | 0.992 |
| 13/32" | 0.4063 | 1.032 |
| 27/64" | 0.4219 | 1.072 |
| 7/16" | 0.4375 | 1.111 |
| 29/64" | 0.4531 | 1.151 |
| 15/32" | 0.4688 | 1.191 |
| 31/64" | 0.4844 | 1.230 |
| 1/2" | 0.5000 | 1.270 |
| Fraction | Decimal (in) | cm |
|---|---|---|
| 33/64" | 0.5156 | 1.310 |
| 17/32" | 0.5313 | 1.349 |
| 35/64" | 0.5469 | 1.389 |
| 9/16" | 0.5625 | 1.429 |
| 37/64" | 0.5781 | 1.468 |
| 19/32" | 0.5938 | 1.508 |
| 39/64" | 0.6094 | 1.548 |
| 5/8" | 0.6250 | 1.588 |
| 41/64" | 0.6406 | 1.627 |
| 21/32" | 0.6563 | 1.667 |
| 43/64" | 0.6719 | 1.707 |
| 11/16" | 0.6875 | 1.746 |
| 45/64" | 0.7031 | 1.786 |
| 23/32" | 0.7188 | 1.826 |
| 47/64" | 0.7344 | 1.865 |
| 3/4" | 0.7500 | 1.905 |
| 49/64" | 0.7656 | 1.945 |
| 25/32" | 0.7813 | 1.984 |
| 51/64" | 0.7969 | 2.024 |
| 13/16" | 0.8125 | 2.064 |
| 53/64" | 0.8281 | 2.103 |
| 27/32" | 0.8438 | 2.143 |
| 55/64" | 0.8594 | 2.183 |
| 7/8" | 0.8750 | 2.223 |
| 57/64" | 0.8906 | 2.262 |
| 29/32" | 0.9063 | 2.302 |
| 59/64" | 0.9219 | 2.342 |
| 15/16" | 0.9375 | 2.381 |
| 61/64" | 0.9531 | 2.421 |
| 31/32" | 0.9688 | 2.461 |
| 63/64" | 0.9844 | 2.500 |
| 1" | 1.0000 | 2.540 |
All values derived from the exact definition: 1 inch = 2.54 cm (1959).
Frequently Asked Questions
How do I convert inches to centimeters?
To convert inches to centimeters, multiply the inch value by 2.54. For example, 12 inches x 2.54 = 30.48 centimeters.
Why is 2.54 the exact conversion factor?
Since 1959, the international inch has been defined as exactly 25.4 millimeters (2.54 centimeters). This is an exact definition, not an approximation.
When would I need to convert inches to centimeters?
This conversion is commonly needed for screen sizes (TVs, monitors), clothing measurements, body measurements for international size charts, and comparing product dimensions across measurement systems.
How many inches are in a centimeter?
There are approximately 0.3937 inches in one centimeter. To convert cm to inches, divide by 2.54 or multiply by 0.3937.
How accurate is this inches to centimeters conversion table?
This conversion table uses the exact definition (1 inch = 2.54 cm) with up to 6 significant figures. The conversion is mathematically perfect since it is based on an exact definition.
