onul.works

Unit Converter

Enter one value to convert units across length, weight, area, temperature, volume, and time instantly.

⌘ Runs in browser ◴ No data stored ⌁ Free
Conversion basis
Conversion results

How to use

  1. 1 Choose the unit category to convert.
  2. 2 Enter the base value and base unit.
  3. 3 Review all unit conversion results and copy them if needed.

Common use cases

  • Length, weight, and volume unit conversion
  • Celsius, Fahrenheit, and Kelvin conversion
  • Area unit comparison including pyeong and acres

Frequently asked questions

Which unit categories can I convert?

Choose length, weight, volume, area, temperature, or time, then enter a base unit and value to see every unit conversion result in that category at once.

Can I copy conversion results?

Yes. Use the copy result button to copy every conversion result in the current category as a text list.

How are result numbers formatted?

Regular values are shown with up to 6 decimal places, and very large or small values use exponential notation. Time months use 30 days and years use 365 days.

Related workflow

Unit ConverterNormalize the base value and unit first so the number is ready to use. → Age CalculatorIf the time unit relates to a birth date, check age and birthday intervals next. → Date DifferenceContinue here when you need the actual duration between two dates.