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Category: Converters

Temperature Converter

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Convert Celsius, Fahrenheit and Kelvin instantly

Convert between Celsius, Fahrenheit and Kelvin using the standard offset formulas, calculated locally in your browser.

Result212

Everything on this page is processed in your browser. Nothing is uploaded.

What this tool does

Celsius and Kelvin share the same scale offset by 273.15 degrees, while Fahrenheit uses a different zero point and a 9/5 scaling factor. This converter applies those fixed formulas directly, so results are exact and never depend on a network lookup.

How to use it

  1. Enter a temperature value.
  2. Choose the unit you're converting from and to.
  3. The converted value appears immediately.

Privacy

This tool runs entirely in your browser. Your input is never uploaded, stored or shared — closing the tab removes it.

Frequently asked questions

Why is -40 the same in Celsius and Fahrenheit?
-40°C and -40°F are the one point where the two linear scales cross; the standard conversion formula confirms it exactly.
How precise are the results?
Values are calculated at full double precision and then trimmed to a readable number of decimals.

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