About this tool
The Unit Converter is a free online tool that converts between metric and imperial units for weight, length, and temperature - instantly, in your browser.
How it works
1
Enter the value you want to convert
Type any number - integers, decimals, or negative values.
2
Pick From and To units
Use the two dropdowns. Units are grouped by category.
3
Click Convert or wait for auto-update
The result appears below with the exact converted value and unit.
Frequently Asked Questions
Is 1 kg exactly 2.2 pounds? v
Almost, but not exactly. 1 kg = 2.20462262... pounds. This tool uses the exact factor.
What is a stone? v
A stone (st) is a British unit of weight equal to 14 pounds (about 6.35 kg).
Why is temperature conversion different from other units? v
Because temperature has an offset, not just a scale. The formula is: F = C x 9/5 + 32.
Does it handle very small or very large values? v
Yes, up to JavaScript floating-point limits.
Is this free and private? v
Yes. No signup, no tracking, no data sent to a server.
Can I convert currencies? v
No - currencies are not fixed units, they change daily.