Temperature Converter

Convert between Celsius (°C), Fahrenheit (°F), Kelvin (K), and Rankine (°R) with step-by-step conversion formulas.

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How do you convert Celsius to Fahrenheit? ↓

Multiply the Celsius temperature by 9/5 (1.8) and add 32: °F = (°C × 1.8) + 32.

How do you convert Fahrenheit to Celsius? ↓

Subtract 32 from the Fahrenheit temperature and multiply by 5/9: °C = (°F − 32) / 1.8.

What is Absolute Zero? ↓

Absolute zero is 0 Kelvin (-273.15 °C or -459.67 °F), the theoretical point where all molecular motion ceases.

Does this converter run client-side? ↓

Yes, 100%. The mathematical formulas are calculated locally in your browser with zero latency and complete privacy.