Degree Celsius (°C)
Same size as the kelvin; 0 °C is exactly 273.15 K.
What is a degree Celsius?
- Symbol
- °C
- Quantity
- Temperature
- Unit system
- SI
- Definition
- Same size as the kelvin; 0 °C is exactly 273.15 K.
- Exact
- Yes, the value is exact by definition
- Source
- SI Brochure, 9th edition (BIPM, 2019)
Common applications
Used for weather, cooking and body temperature in most countries, and in science alongside kelvin.
Degree Celsius in other temperature units
- K = °C + 273.15Degree Celsius to Kelvin converter
- °F = °C × 1.8 + 32Degree Celsius to Degree Fahrenheit converter
- °R = °C × 1.8 + 491.67Degree Rankine
Degree Celsius quick reference
| Degree Celsius | Kelvin | Degree Fahrenheit | Degree Rankine |
|---|---|---|---|
| -40 °C | = 233.15 K | = -40 °F | = 419.67 °R |
| -20 °C | = 253.15 K | = -4 °F | = 455.67 °R |
| -10 °C | = 263.15 K | = 14 °F | = 473.67 °R |
| 0 °C | = 273.15 K | = 32 °F | = 491.67 °R |
| 10 °C | = 283.15 K | = 50 °F | = 509.67 °R |
| 20 °C | = 293.15 K | = 68 °F | = 527.67 °R |