Metric and US unit converter
Switch between metric and US units for length, weight, and volume.
Converts live as you type. Nothing is uploaded.
How to use this tool
Pick a measurement type, then type into either box. The other side updates instantly.
The conversion factors
1 inch = 2.54 cm
1 pound = 0.453592 kg
1 gallon = 3.78541 liters
A real example
A recipe from abroad lists a liter of stock but your jug reads in gallons, or a parcel lists kilograms and the courier wants pounds. A quick switch here saves a search and a mistake.
Common questions
Which gallon is used?
The US gallon, which is smaller than the imperial gallon used in some countries. Keep that in mind for UK recipes.