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10 km equals6.213712 mi
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35 tools
Length, area and speed
For distances, room and land sizes, and how fast something is going.
- Distance Converter
Converts between metric, imperial, nautical, surveying and other length units.
- Kilometers to Miles
Converts kilometers to miles, and back.
- Meters to Feet
Converts meters to feet, and back.
- Centimeters to Inches
Converts centimeters to inches, and back.
- Square Feet to Square Meters
Converts square feet to square meters, and back.
- Hectares to Acres
Converts hectares to acres.
- Kilometers per Hour to Miles per Hour
Converts kilometers per hour to miles per hour, and back.
- Speed Converter
Converts between speed and velocity units.
Weight, volume and temperature
The everyday conversions between US and metric units.
- Weight Converter
Converts between kilograms, pounds, ounces, stone and many other weight units.
- Pounds to Kilograms
Converts pounds to kilograms.
- Grams to Ounces
Converts grams to ounces, and back.
- Volume Converter
Converts between metric, US, imperial and cooking volume units.
- Gallons to Liters
Converts gallons to liters.
- Temperature Converter
Converts between Celsius, Fahrenheit, Kelvin, Rankine and Reaumur.
- Fahrenheit to Celsius
Converts degrees Fahrenheit to degrees Celsius, and back.
- Celsius to Fahrenheit
Converts degrees Celsius to degrees Fahrenheit, and back.
Cooking and fuel economy
For recipes written in another country and cars sold by a different measure.
- Cooking Unit Converter
Converts between kitchen measurements.
- Cups to Milliliters
Converts cups to milliliters, and back.
- Cups to Grams
Converts cups of a chosen ingredient, such as flour or sugar, to grams.
- Oven Temperature Converter
Converts oven temperatures between Fahrenheit, Celsius and gas mark.
- L/100 km to mpg
Converts liters per 100 kilometers to miles per gallon, and back.
- Fuel Economy Converter
Converts between fuel economy units.
Binary, hex and other number systems
For programming, networking and homework.
- Number Converter
Converts a number between binary, octal, decimal, hex, base 32 and base 36.
- Decimal to Binary
Converts decimal numbers to binary, and back.
- Hexadecimal to Binary
Converts hexadecimal numbers to binary, and back.
- Hexadecimal to Decimal
Converts hexadecimal (base 16) numbers to decimal, and back.
- Twos Complement Converter
Converts signed decimal integers to twos complement binary, and back.
- Decimal to Roman Numerals
Converts numbers to Roman numerals.
- Text to ASCII
Converts text to ASCII character codes.
Data sizes and time
For file sizes, storage and the calendar.
- Data Storage Converter
Converts between bytes, kilobytes, megabytes, gigabytes and the binary units such as GiB.
- Megabytes to Gigabytes
Converts megabytes to gigabytes.
- GiB to GB
Converts gibibytes (powers of 1,024) to gigabytes (powers of 1,000).
- Time Unit Converter
Converts between seconds, minutes, hours, days and longer time units.
- Unix Timestamp Converter
Converts a Unix timestamp, in seconds or milliseconds, to a date and time.
- Date Difference Calculator
Works out the time between two dates.
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Common questions about the Number Convert