Temperature Converter

Convert between Celsius, Fahrenheit, and Kelvin in one tap

From
Celsius
25°C
Fahrenheit
77°F
Kelvin
298.15K

Common temperatures

About this tool

Convert any temperature between Celsius (°C), Fahrenheit (°F), and Kelvin (K). Type a number, pick the source unit, and all three scales update at once. Handy for travelers comparing weather forecasts, cooks following overseas recipes, or anyone doing quick science homework — with common presets like body temperature, freezing point, and oven heat one tap away.

How to use

  1. Type the temperature you already know in any of Celsius, Fahrenheit, or Kelvin.
  2. Pick which scale your number is in — the other two update automatically.
  3. Tap a preset chip for quick references like body temperature or the boiling point of water.

FAQ

  • What's the formula?

    °F = °C × 9/5 + 32 and K = °C + 273.15. Everything passes through Celsius internally so the three scales stay perfectly consistent.

  • Why can't I go below −273.15°C?

    That's absolute zero — the coldest possible temperature, where Kelvin equals 0. Going lower has no physical meaning, so the converter blocks it.

  • Is 36.5°C really "normal" body temperature?

    It's a typical resting value for healthy adults, but normal varies from about 36.1°C to 37.2°C depending on time of day and where you measure. The preset is a convenient round number, not a medical threshold.

  • What temperature is 'room temperature'?

    About 20–22°C (68–72°F) for most purposes. Different fields use slightly different standards — labs often standardize on 25°C.

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