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Temperature Converter

Convert between Celsius, Fahrenheit, Kelvin, and Rankine instantly.

100 °C =

212 °F

Quick:
°C → °F
°F → °C
°C → K
°F → K
K → °R

Fahrenheit

212 °F

Kelvin

373.15 K

Rankine

671.67 °R
Common Reference Points

Absolute Zero

-273.15 °C
-459.67 °F
0 K
0 °R

Water Freezes

0 °C
32 °F
273.15 K
491.67 °R

Room Temperature

20 °C
68 °F
293.15 K
527.67 °R

Body Temperature

37 °C
98.6 °F
310.15 K
558.27 °R

Water Boils

100 °C
212 °F
373.15 K
671.67 °R

Celsius, Fahrenheit, Kelvin & Rankine Converter

Switch between temperature scales for cooking, weather, lab notebooks, and HVAC specs. Understand absolute zero references with Kelvin for science workflows.

Rankine appears in some US engineering thermodynamics references—convert consistently when reading legacy textbooks.

Four scales

Cover everyday and scientific needs in one place.

Precise

Avoid mental arithmetic errors on exam problems.

Immediate

Update all outputs as you type.

Simple UI

No formulas to memorize during quick checks.

Type ° value
See all scales
How to convert temperature online
  1. 1
    Enter

    Type a value in any scale field.

  2. 2
    Compare

    Read equivalent Celsius, Fahrenheit, Kelvin, Rankine.

  3. 3
    Copy

    Use in recipes, reports, or problem sets.

Related: C to F, F to C, Kelvin converter, oven temperature conversion, Rankine to Kelvin, body temperature C F.

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