Simple, fast, exact
Unit converter for everyday measurements
Convert inches to cm, ounces to grams, cups to ml, kg to lb, °F to °C, miles to km and more. UnitCalc gives you the answer, formula, examples, and a useful table without clutter.
Instant calculator
Convert units
Enter a value, choose units, and copy the result. The formula and table update automatically.
Result
Conversion calculators
Popular unit converters
Each calculator includes an instant converter, exact formula, practical examples, common conversion table, and related tools.
Built around real use cases
More useful than a plain formula page
UnitCalc groups conversions by how people actually use them: cooking, height, distance, shipping, DIY, fitness, weather, and digital storage. That makes it faster to find the right calculator and easier to understand the result.
How to use UnitCalc
- Choose a popular calculator or use the universal converter.
- Enter the number you want to convert.
- Select the from and to units.
- Copy the result or use the table for common values.
Accuracy notes
UnitCalc uses standard conversion factors for common everyday units. For cooking, ingredient conversions such as grams to cups are estimates because density varies by ingredient, brand, packing method, and humidity.
FAQ
Unit converter questions
What is UnitCalc?
UnitCalc is a free everyday unit converter with calculators, formulas, examples, and conversion tables.
Can I use these conversions for engineering or medical work?
Use UnitCalc for general information and everyday tasks. For critical engineering, medical, legal, or scientific work, verify the values with an authoritative source.
Why do cooking conversions sometimes say “about”?
Weight-to-volume conversions depend on ingredient density. For example, 1 cup of flour does not weigh the same as 1 cup of sugar.