Temperature Converter
Convert between Celsius, Fahrenheit, Kelvin, and Rankine
Convert Temperature
Enter a temperature value and select units to convert.
Temperature Feel
Comfortable
Result
20°C = 0°F
Conversion History
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Temperature Scale Reference
Celsius (°C)
- Water freezes: 0°C
- Room temperature: ~20°C
- Body temperature: 37°C
- Water boils: 100°C
Fahrenheit (°F)
- Water freezes: 32°F
- Room temperature: ~68°F
- Body temperature: 98.6°F
- Water boils: 212°F
Kelvin (K)
- Absolute zero: 0 K
- Water freezes: 273.15 K
- Room temperature: ~293 K
- Water boils: 373.15 K
Rankine (°R)
- Absolute zero: 0°R
- Water freezes: 491.67°R
- Room temperature: ~527°R
- Water boils: 671.67°R
Conversion Formulas
From Celsius
- °F = (°C × 9/5) + 32
- K = °C + 273.15
- °R = (°C × 9/5) + 491.67
From Fahrenheit
- °C = (°F - 32) × 5/9
- K = (°F - 32) × 5/9 + 273.15
- °R = °F + 459.67
From Kelvin
- °C = K - 273.15
- °F = (K - 273.15) × 9/5 + 32
- °R = K × 9/5
Temperature Facts
- • Kelvin is the SI base unit
- • Celsius is most common worldwide
- • Fahrenheit used mainly in US
- • Rankine is absolute Fahrenheit scale