Unit Converter: Convert Length, Weight, Temperature, Volume, and More
Convert between all common units of measurement: length (miles to km), weight (lbs to kg), temperature (Fahrenheit to Celsius), volume, area, speed, and data storage.
Unit Conversion Formulas
Each unit category uses specific conversion factors derived from SI (International System of Units) base units.
All conversions use exact SI definitions where available. US customary and imperial units use NIST standard conversion factors.
How to Use the Unit Converter
Select the unit category
Choose from Length, Weight, Temperature, Volume, Area, Speed, or Data Storage.
Enter the value to convert
Type the number in the 'From' field.
Select From and To units
Choose your source and target units from the dropdowns.
See instant result
The converted value appears immediately as you type.
Real-World Scenario Example
"Converting 5 miles to kilometers: 5 × 1.60934 = 8.0467 km."
Inputs
Result
8.0467 km
Important Disclaimer
Conversion factors are based on NIST standard definitions. Temperature conversions involving Kelvin assume absolute zero at −273.15°C. For precision scientific work, verify conversion factors against primary standards.
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