About Units Converter
Instant conversions across 10 categories.
10 Categories
Length, Weight/Mass, Temperature, Area, Speed, Volume, Time, Energy, Pressure, and Digital Data Storage.
80+ Units
From nanometers to light-years, milligrams to metric tons, bits to petabytes — all common and scientific units included.
All-at-Once View
Enter a value and see it converted to every unit in the category simultaneously — great for quick reference.
Privacy
All conversions happen in your browser. No data is sent anywhere.