Everyday
Unit & size converter
Convert popular metric, imperial, cooking, shoe, and clothing sizes.
Converted value
-
- Conversion-
- CategoryLength & distance
Results are rounded for display. Calculations retain additional precision.
How it works
How the Unit Converter works
Quick answer: Unit conversion multiplies by a fixed factor: 1 inch = 2.54 cm, 1 mile = 1.609344 km, and 1 pound = 0.45359237 kg. Temperature uses a formula instead: °F = °C × 9 ÷ 5 + 32.
Formula
Result = value × (factor of source unit ÷ factor of target unit)
°F = °C × 9 ÷ 5 + 32, °C = (°F − 32) × 5 ÷ 9All length, weight, and volume units are converted through one base unit, which keeps every pair consistent.
Assumptions and limits
- Cooking volume uses US customary units (US cups, US fluid ounces).
- Shoe and clothing size equivalents are approximate; brand size charts vary.
Frequently asked questions
Which units are supported?
Length, distance, weight, temperature, cooking volume, shoe sizes, and clothing sizes.
Are conversions exact?
Standard factors are used; some clothing and shoe sizes are approximate.
How many centimeters are in an inch?
Exactly 2.54 centimeters, by international definition.
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