Unit Converter
Convert length, weight, volume and temperature between common units.
Your details
How the unit converter works
Every conversion is a single multiplication by an exact factor defined against SI base units.
Formula
output = value × conversion factor
Worked example
100 metres equals 328.08 feet, 3,937 inches or 0.0621 miles.
Frequently asked questions
Are these factors exact?
Yes — an inch is defined as exactly 25.4 mm and a pound as exactly 0.45359237 kg.
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