Tooligan/ Units

Unit converter

Free online unit converter with 44+ units across length, weight, temperature, and pressure. Type a number in one unit, read it in every other — accurate to the SI definition and fully offline-capable.

Distance. From nanometers to parsecs.

m
3.28084
ft

1 m = 3.28084 ft

How to use unit converter

  1. 01
    Pick a category

    Length, weight, temperature, or pressure. Each has its own dedicated page with the complete unit list.

  2. 02
    Type your value

    Enter the number you want to convert. The result updates instantly as you type — no submit button.

  3. 03
    Swap units

    Use the From and To pickers to choose any pair — metric, imperial, SI, or exotic. Swap with one click.

  4. 04
    Copy the result

    Tap the copy button next to the output to paste the result anywhere.

  5. 05
    Reuse from history

    Recent conversions are saved to your browser locally so you can re-run them without retyping.

Examples

1 m
3.2808 ft · 39.370 in
Length — metric to imperial.
1 kg
2.2046 lb · 35.274 oz
Weight — kilogram to imperial.
100 °C
212 °F · 373.15 K
Temperature — boiling point of water.
1 bar
14.504 psi · 100 kPa
Pressure — tire/weather common units.

Frequently asked questions

How accurate is this unit converter?

Conversions use the exact SI-defined factors where one exists (inch = 25.4 mm exactly, pound = 0.45359237 kg exactly, etc.). Numerical precision is kept to roughly six significant figures in the display; internally it's full double precision.

Does this work offline?

Yes. The converter is a static web app — once the page is loaded, conversions run entirely client-side with no network calls. Keep the tab open or install it as a PWA to use on a plane.

Can I convert between metric and imperial?

Yes. Every category includes both metric and imperial units plus less common ones (nautical miles, stones, troy ounces, Rankine, inHg). Pick any From and To within a category.

Which categories are supported?

Length, weight, temperature, and pressure today. More are on the roadmap — open an issue if you want to request a category.

Do you save my conversions?

Only in your own browser's local storage, so you can re-run recent conversions. Nothing is sent to a server.

Last updated . Built by Tooligan.

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