Scenario 1
Boiling water
100°C = 212°F = 373.15 K = 671.67°R
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Temperature Converter
Convert any temperature between all major scales instantly.
Adjust your inputs
Results update instantly as you type or drag.
-273.1 – 100,000
Quick insights
Kelvin
373
Rankine
672
Quick answer
How do you convert Celsius to Fahrenheit?
°F = (°C × 9/5) + 32. For example, 100°C = 212°F (boiling point of water).
How it works
From inputs to result in four steps
A quick walkthrough of what this calculator does behind the scenes.
- 1
Enter a temperature in Celsius.
- 2
See the equivalent in all other scales.
Formula
The math behind the number
No black box — here's exactly how the result is computed.
Formulas
°F = (°C × 9/5) + 32
K = °C + 273.15
°R = (°C + 273.15) × 9/5
Reverse:
°C = (°F − 32) × 5/9
°C = K − 273.15Examples
Real-world scenarios
See how the numbers play out for typical use cases.
Scenario 2
Body temperature
37°C = 98.6°F = 310.15 K
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