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Unit Converter

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Math & Data

Unit Converter

Convert between different units of measurement.

Workspace

Run the tool here

Browser utility

Category

Value

From unit (km, kg, c, l…)

To unit (mi, lb, f, gal…)

Output

Run the workspace to see the response here.

How to use

Choose a category.
Enter the value and pick the source and target units.
Copy the converted value.

About this tool

Convert length, weight, temperature, volume and speed units with precise factors.

Unit Converter is part of the TmpMailer Math & Data set — free browser utilities that open instantly, need no account, and pair well with a temporary-email workflow when you just need a quick result.

Common use cases

Converting a recipe between metric and imperial.
Checking a specification in the units your vendor uses.
Converting temperatures for a dataset.

Common questions

Why do temperature conversions differ from a simple ratio?

Celsius and Fahrenheit have different zero points, so the formula includes an offset as well as a scale factor.

How precise are the results?

Factors are standard, but display rounding applies. Use the full value for scientific work.

What is the difference between US and imperial gallons?

They are different volumes. Check which system your source uses before converting.

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