Unit Converter

Convert between units of measurement

Unit Converter Online - Free & Private

Convert between length, weight, temperature, volume, speed, and time units. All processing happens in your browser - nothing is uploaded.

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Common Conversions

About Unit Converter

Convert between different units of measurement across multiple categories including length, weight, temperature, volume, speed, and time. All conversions are done locally in your browser - your data never leaves your device.

FreePrivateReal-timeNo Uploads6 Categories

Convert common units of measurement

Convert values across length, weight, temperature, volume, speed, and time categories. Check the selected units carefully, especially when switching between metric and imperial measurements.

How to use this tool

Choose a measurement category.

Enter a value and select the source and target units.

Read or copy the converted value and verify the units.

Supported formats and example

Formats: Length, weight, temperature, volume, speed, and time.

Example: Convert 10 kilometers to miles or Celsius to Fahrenheit.

Frequently asked questions

Does temperature conversion work?

Temperature is listed as one of the supported categories.

Why did my result change?

Confirm the category and both selected units.

Are results suitable for critical engineering work?

Independently verify values used for safety-critical or regulated calculations.

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