Unit Converter
Convert length, mass, area, volume, temperature, speed, time and data units.
Enter your values
Use the fields below, then select Calculate. Your result appears immediately on this page.
How to use the Unit Converter
Choose a category, enter a value, then select source and destination units. Supported categories include length, mass, area, volume, temperature, speed, time and data.
Formula / calculation logic
Most categories use exact or standard scale factors through a base unit. Temperature uses the appropriate Celsius/Fahrenheit/Kelvin formulas instead of a simple multiplier.
Worked example
1 kilometre converts to 1,000 metres; 0 °C converts to 32 °F.
Important notes
Decimal display is rounded for readability while calculations retain normal JavaScript numeric precision. Data units include both decimal (KB/MB/GB) and binary (KiB/MiB/GiB) choices.
Frequently asked questions
What is the difference between MB and MiB?
MB is decimal (1,000,000 bytes); MiB is binary (1,048,576 bytes).
Does temperature use a ratio only?
No. Temperature conversions include offsets as required.