Unit Conversions and Calculators

Unit Converter

Choose the type of measurement to convert
Select the source unit to convert from
Select the target unit to convert to
Enter a numeric value or fraction to convert
Sig. Figures:

Unit Converters

Length / Distance

Convert cm, inches, feet, meters, miles, km and more

Weight / Mass

Convert kg, lbs, stones, ounces, grams and more

Volume / Capacity

Convert liters, gallons, cups, milliliters and more

Temperature

Convert Celsius, Fahrenheit, Kelvin and Rankine

Area

Convert acres, hectares, sq ft, sq meters and more

Speed / Velocity

Convert mph, km/h, knots, m/s and more

Pressure

Convert PSI, bar, kPa, atm, mmHg and more

Energy

Convert joules, calories, kWh, BTU and more

Power

Convert watts, horsepower, kilowatts and more

Torque

Convert N·m, ft·lb, in·lb, kgf·m and more

Force

Convert Newtons, pound-force, kgf, kip and more

Data Rate

Convert Mbps, MB/s, Gbps, Kbps — bits vs bytes

Frequency

Convert Hz, kHz, MHz, GHz and RPM

Angle

Convert degrees, radians, gradians and DMS

Data Storage

Convert bits, bytes, KB, MB, GB, TB and more

Acceleration

Convert m/s², g-force, ft/s² and more

Calculators & Specialized Tools

Construction

Concrete, gravel, mulch, sand, soil and paver calculators

Fuel & Gas

Gas trip cost, MPG calculator, fuel consumption

Cooking

Cups, tablespoons, ounces — cooking measurements

Chemistry

PPM, molarity, dilution, molar mass calculators

Download Time

How long will my download take?

Statistics

Mean, median, mode, standard deviation, percentile

Finance

Salary converters, compound interest, tax calculators

All Calculators

Browse all 80+ calculators organized by category

What is CoolConversion.com

CoolConversion.com is a meticulously crafted online platform offering a vast array of calculators and unit converters across diverse domains such as mathematics, finance, health, science, and daily life. Established in 2014 as a personal endeavor, the website has evolved into a comprehensive resource, aiming to provide not just results but also detailed explanations and step-by-step solutions to enhance user understanding.

What It Offers

Calculators

Browse all 80+ calculators organized by category — Find the right tool quickly in our comprehensive calculator directory covering math, finance, health, time, and more.

  • Percentage Calculators: Tools for adding or subtracting percentages, converting decimals to percentages, calculating percentage changes, differences, errors, and more.
  • Fractions Calculators: Includes converters between decimals and fractions, simplifiers, operations with fractions, and tools for finding greatest common factors and least common multiples.
  • Number Tools: Features calculators for cube roots, exponents, factorials, Fibonacci sequences, logarithms, prime numbers, scientific notation conversions, and more.
  • Miscellaneous Math: Offers tools for converting between Arabic and Roman numerals, performing long division and addition, and solving quadratic equations.
  • Geometry: Calculators for determining the area and circumference of circles, and more.
  • Finance: Includes compound interest calculators, currency converters, discount and sales tax calculators, and tip calculators.
  • Health & Fitness: Provides BMI calculators (metric and imperial), calorie calculators for various activities, ideal weight estimators, life expectancy calculators, and ovulation/pregnancy tools.
  • Text Tools: Features word and character counters, converters between numbers and words, and tools for understanding Spanish numbers.
  • Computer & Electronics: Includes base converters, data storage converters, power calculators, and tools for electrical measurements.
  • Time: Offers converters for time units, age calculators, day-of-the-week finders, Easter date calculators, and tools for converting time to decimals or fractions.
  • Miscellaneous: Additional tools such as cat and horse age calculators, zodiac sign finders, and an HTML color mixer.

Unit Converters

  • Length / Distance / Height: Converters between different units of length and distance, including feet, inches, and centimeters.
  • Volume to Mass: Tools for converting between volume and mass for recipes, chemistry, and construction purposes.
  • Weight / Mass: Converters between kilograms, stones, pounds, and ounces.
  • Other Converters: Includes converters for angles, areas, coordinates, energy, oven temperatures, pressure, power, speed, temperature, and volume/capacity.

Key Features

  • Detailed Explanations: Many tools provide step-by-step solutions and additional information to aid understanding.
  • User-Friendly Interface: Designed with simplicity and clarity to ensure ease of use.
  • Mobile Compatibility: Fully responsive design for optimal use on various devices.
  • Continuous Development: Regular updates and additions to tools and features based on user feedback and needs.

Who It's For

  • Students: Seeking assistance with math problems and understanding concepts.
  • Professionals: Needing quick and accurate conversions in fields like finance, engineering, and health.
  • General Users: Looking for everyday calculations and conversions, such as cooking measurements or fitness tracking.

Mission

To provide accessible, accurate, and comprehensive tools that simplify complex calculations and conversions, enhancing users' understanding and efficiency in various tasks.

If you have any suggestions or complaints please contact us.