Temperature Converter

Convert between Celsius, Fahrenheit and Kelvin — instantly.

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The short answer

25°C is 77°F and 298.15 K. The formulas: °F = °C × 9/5 + 32, and K = °C + 273.15. Body temperature 98.6°F is 37°C — the one conversion every traveller memorises.

How to use the temperature converter

  1. Enter the temperature.
  2. Pick the scale it’s in.
  3. See all three scales instantly.

Temperature Converter — FAQs

How do I convert Celsius to Fahrenheit?

Multiply by 9/5 and add 32: 25°C → 25 × 1.8 + 32 = 77°F.

What is 98.6°F in Celsius?

37°C — normal human body temperature. (98.6 − 32) × 5/9 = 37.

When do I need Kelvin?

Science and engineering: 0 K is absolute zero (−73.15°C). You’ll rarely need it outside physics and chemistry.

Quick mental F to C?

Subtract 30, then halve: 77°F → (77−30)/2 ≈ 23.5°C (actual 25°C). Good enough for weather.

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