Conversion Calculator
Convert common length, mass and volume units with one value.
Compare Your Options And Get Clear Answers
Convert common length, mass and volume units with one value.
Conversion Estimator
Enter your numbers below for an instant estimate.
How It Works
Key concepts behind this calculator
Enter Values
Fill in each field with your own numbers.
Calculate
Results update as you change the inputs.
Review
Read the breakdown and the explanation.
Adjust
Change values to compare scenarios.
Conversion Quick Guide
Typical values for reference.
| Value | Inches to cm | Miles to km | Pounds to kg |
|---|---|---|---|
| 1 | 2.54 | 1.609 | 0.454 |
| 10 | 25.40 | 16.093 | 4.536 |
| 100 | 254.00 | 160.934 | 45.359 |
| 0.5 | 1.27 | 0.805 | 0.227 |
| Rule of Thumb | Check inputs | Use as a guide | Round sensibly |
Conversion Calculator FAQ
Answers to common questions about this calculator.
Multiply by the conversion factor.
Inches and pounds are defined exactly, others are rounded.
The UK imperial gallon, 4.54609 litres.
Divide by the factor.
