Best for common unit conversions
Use Unit Converter for everyday conversions across length, weight, temperature, volume, area, speed, and data size.
About Unit Converter
All the unit conversions that come up regularly - in one place, with real results. Seven categories: length, weight, temperature, volume, area, speed, and digital storage. Temperature uses the actual formulas (not naive linear factors), so Celsius, Fahrenheit, and Kelvin all convert correctly. Data sizes handle both decimal (MB, GB) and binary (MiB, GiB) units because yes, they're different and it matters. Type a value and the result updates immediately - everything runs locally in your browser, no server needed.
Unit Converter details
Seven categories
The tool covers length, weight, temperature, volume, area, speed, and digital data size with common metric and imperial units.
Temperature formulas
Temperature conversion uses the actual Celsius, Fahrenheit, and Kelvin formulas instead of a simple multiplication factor.
Data size units
Data-size conversion distinguishes decimal units such as MB and GB from binary units such as MiB and GiB.
Client-side privacy
All conversion math runs in your browser. Values are not sent to the server.
Common conversion issues
Differences usually come from rounding, decimal versus binary data units, or confusing mass, volume, and temperature units that do not share one linear formula.
How it works
1
Pick a category
Choose from length, weight, temperature, volume, area, speed, or data size.
2
Type a value
Enter the amount and choose the source and target units.
3
Read the result
The converted value appears instantly - common units are preset so you're usually one or two clicks away.
Frequently asked questions
Which unit categories are covered?
Length, weight, temperature, volume, area, speed, and digital data size - each with the metric and imperial units people actually use day to day.
How accurate are the conversions?
Factors use exact internationally agreed definitions; results are shown with sensible rounding and full precision is kept internally.
Does temperature use the right formulas?
Yes - Celsius, Fahrenheit, and Kelvin convert through their actual formulas, not a linear approximation like other units.
Is it free?
Yes, no limits - everything runs in your browser.