Unit converter
Pick length, weight, or temperature, then the two units. The page converts through meters, grams, or degrees Celsius so the factors stay easy to check.
There is no currency conversion. Money rates change and do not belong next to physical units.
Calculator
Required fields are marked with *.
Use a comma or a dot for the decimal, as in 12.5 or 12,5. Type thousands as 1000 or 1 000. A single comma or dot is the decimal mark, so 1,000 means 1.
Results
The result will appear here.
How to use this calculator
- Choose length, weight, or temperature.
- Enter the value and the two units.
- Read the equation. The same unit on both sides returns the value unchanged.
Formula
Length is converted through meters. One inch is 0.0254 meters. One foot is 0.3048 meters. One mile is 1,609.344 meters.
Weight is converted through grams. One pound is 453.59237 grams. One ounce is 28.349523125 grams.
°F = °C × 9/5 + 32
K = °C + 273.15
A temperature below absolute zero, 0 kelvin, is rejected.
Worked example
6 feet in centimeters
One foot is 30.48 centimeters. Six feet are 6 × 30.48.
The result is 182.88 centimeters. As a temperature check, 100 Celsius is 212 Fahrenheit, and 0 kelvin is −273.15 Celsius.
6 feet = 182.88 centimeters.
Questions
Why is there no currency?
Exchange rates move during the day and depend on the provider. A static page of physical units would go stale if it pretended to price money.
Which mile and which pound?
The international mile and the international avoirdupois pound used with the metric system. Not a historical or local variant.
Can I convert a temperature below absolute zero?
No. The page stops that input, because it is not a physical temperature on these scales.
Sources
Last reviewed November 1, 2026