Temperature Converter
Convert between Celsius, Fahrenheit, Kelvin, and Rankine
Convert Temperature
Common Temperatures
Water freezes
0°C | 32°F
Room temperature
20°C | 68°F
Body temperature
37°C | 98.6°F
Water boils
100°C | 212°F
Absolute zero
-273.15°C | 0K
Oven temperature
200°C | 392°F
Temperature Scales
Celsius (°C)
Based on water's freezing (0°) and boiling (100°) points. Used worldwide for everyday temperatures.
Fahrenheit (°F)
Primarily used in the United States. Water freezes at 32° and boils at 212°.
Kelvin (K)
Scientific temperature scale starting at absolute zero (-273.15°C). No degree symbol used.
Rankine (°R)
Absolute temperature scale based on Fahrenheit degrees. Used in engineering applications.
About Temperature Conversion
Conversion Formulas
- °C to °F: (°C × 9/5) + 32
- °F to °C: (°F - 32) × 5/9
- °C to K: °C + 273.15
- K to °C: K - 273.15
- °F to °R: °F + 459.67
- °R to °F: °R - 459.67
Common Uses
- Weather: Daily temperature forecasts
- Cooking: Recipe temperatures and oven settings
- Science: Laboratory experiments and calculations
Temperature Facts
- Absolute zero is the coldest possible temperature
- Celsius is part of the metric system
- Kelvin is the SI base unit for temperature
- Rankine is rarely used outside of engineering
Precision Notes
- Results are rounded to reasonable decimal places
- Conversions use precise mathematical formulas
- Very precise values maintained for scientific use