Everyday Conversion Utility
Unit Converter
Convert common distance, mass, and temperature units using independent browser-local forms and published conversion factors.
Miles ↔ Kilometers
1 mile = 1.609344 kilometers.
Inches ↔ Centimeters
1 inch = 2.54 centimeters.
Pounds ↔ Kilograms
1 pound = 0.45359237 kilograms.
Ounces ↔ Grams
1 avoirdupois ounce = 28.349523125 grams.
Celsius ↔ Fahrenheit
0 °C = 32 °F; 100 °C = 212 °F.
Quick examples
- 1 mile = 1.609344 km.
- 1 inch = 2.54 cm.
- 1 lb = 0.45359237 kg.
- 0 °C = 32 °F.
Conversion method
The distance and mass forms multiply or divide by fixed conversion factors. Temperature requires an offset as well as a scale change: °F = °C × 1.8 + 32, and °C = (°F − 32) ÷ 1.8.
Reference
The conversion factors and temperature equations are based on the U.S. National Institute of Standards and Technology (NIST) Guide to the SI and NIST temperature conversion guidance.
Limitations
This page covers a small set of common everyday conversions. It is not a complete dimensional-analysis engine and does not replace specialized engineering, laboratory, or regulatory conversion requirements.
Privacy
All conversions run locally in the browser.
Common questions
Why are some results shown with several decimal places?
Extra decimal places help preserve the conversion result before you round it for your own use.
Does this converter cover every unit?
No. It intentionally focuses on common distance, mass, and temperature pairs so each conversion remains transparent and easy to verify.