ToolStack

Unit Converter

Convert between units of length, weight, temperature, volume, area and speed.

100% private — everything runs in your browser

How to Use

  1. 1

    Choose a category: length, weight, temperature, volume, area or speed.

  2. 2

    Select the From and To units, then type a value.

  3. 3

    The result appears instantly — press the swap button to convert in the opposite direction.

Examples

Length

Input

100 mm → cm

Output

10

Temperature

Input

100 °C → °F

Output

212

Weight

Input

1 lb → kg

Output

0.453592

FAQ

Which categories are supported?

Length, weight, temperature, volume, area and speed — 30+ units in total, both metric and imperial.

How does temperature conversion work?

Temperature uses formulas rather than simple ratios: °F = °C × 9/5 + 32, and K = °C + 273.15.

How precise are the results?

Results are rounded to six decimal places.

Related Tools

Aspect Ratio CalculatorResize an image or video while keeping its aspect ratio exactly intact.CM to InchesConvert centimetres to inches instantly — fast, free and private.Miles to KMConvert miles to kilometres instantly — fast, free and private.KG to LBConvert kilograms to pounds instantly — fast, free and private.Inches to CMConvert inches to centimetres instantly — fast, free and private.Feet to CMConvert feet to centimetres instantly, with a lookup table and the exact formula.