Convert Between 30+ Units Across Five Categories
Convert units of length, weight, temperature, area, volume, and speed instantly. Free online unit converter. No signup required.
0.001
All Conversions
Meters (m)
1
Kilometers (km)
0.001
Centimeters (cm)
100
Millimeters (mm)
1000
Miles (mi)
0.00062137119
Yards (yd)
1.0936133
Feet (ft)
3.2808399
Inches (in)
39.370079
Unit conversions are everywhere: recipe measurements in different countries, speed limits while traveling abroad, data storage sizes on cloud hosting plans, temperature forecasts in unfamiliar scales. Instead of searching for a different converter every time, this tool puts 30+ units across five categories in one place, with the unique ability to see your value converted to every unit in a category simultaneously. One input, every answer.
Table of Contents
Common Conversions
These are the conversions that come up most frequently in daily life, travel, cooking, and work. Having them at your fingertips saves time and prevents errors.
Kilometers to Miles (and back)1 kilometer = 0.621371 miles. 1 mile = 1.60934 kilometers. Essential for understanding speed limits and distances when traveling between countries that use different systems. A 100 km/h speed limit is approximately 62 mph.
Kilograms to Pounds (and back)1 kilogram = 2.20462 pounds. 1 pound = 0.453592 kilograms. Needed for understanding body weight, shipping costs, and food packaging when switching between metric and imperial systems. A 70 kg person weighs about 154 lbs.
Celsius to Fahrenheit (and back)The formula: F = C x 9/5 + 32. Or: C = (F - 32) x 5/9. Key temperature points: 0C = 32F (freezing), 100C = 212F (boiling), 37C = 98.6F (body temperature). Essential for weather forecasts, cooking temperatures, and medical readings.
Gigabytes to Megabytes (and back)1 GB = 1024 MB in binary (the standard for RAM and operating systems). 1 GB = 1000 MB in decimal (used by storage manufacturers for hard drives and SSDs). This tool uses the binary (1024) standard. A 256 GB SSD actually stores about 238 GiB.