Celsius (°C) to Kelvin (K) Conversion
Celsius
The Celsius scale sets 0 °C at the freezing point of water and 100 °C at its boiling point at standard atmospheric pressure. Proposed by Anders Celsius in 1742, it became the international standard for scientific and everyday temperature measurement in all countries that have adopted SI. The Celsius degree is identical in magnitude to the Kelvin, so temperature differences in Celsius and Kelvin are numerically equivalent, though their zeros differ by exactly 273.15.
Kelvin
The Kelvin is the SI base unit of thermodynamic temperature, named after Lord Kelvin who proposed an absolute temperature scale in 1848. Zero Kelvin (0 K), absolute zero, represents the theoretical lowest possible temperature (−273.15 °C). No degree symbol is used because Kelvin is an absolute scale, not a degree-based one. The Kelvin is universally used in physics and chemistry because it is directly proportional to thermal energy.
| Celsius (°C) | Kelvin (K) |
|---|---|
| -10 °C | 263.15 K |
| 0 °C | 273.15 K |
| 10 °C | 283.15 K |
| 20 °C | 293.15 K |
| 25 °C | 298.15 K |
| 30 °C | 303.15 K |
| 37 °C | 310.15 K |
| 40 °C | 313.15 K |
| 50 °C | 323.15 K |
| 60 °C | 333.15 K |
| 100 °C | 373.15 K |
Frequently Asked Questions (FAQ)
What is the formula to convert Celsius to Kelvin?
The exact formula is K = °C + 273.15. For example: 0°C = 273.15 K and 100°C = 373.15 K. Absolute zero (0 K) is −273.15°C.
What is 25 degrees Celsius in Kelvin?
25°C equals 298.15 K. Using the formula: 25 + 273.15 = 298.15 K. This value is used as standard room temperature in many scientific and thermodynamic calculations.
Convert Celsius (°C) to other units of Temperature
| ‣ Celsius (°C) to Celsius (°C) |
| ‣ Celsius (°C) to Fahrenheit (°F) |
| ‣ Celsius (°C) to Kelvin (K) |
| ‣ Celsius (°C) to Rankine (°R) |
| ‣ Celsius (°C) to Celsius (°C) |
| ‣ Fahrenheit (°F) to Celsius (°C) |
| ‣ Kelvin (K) to Celsius (°C) |
| ‣ Rankine (°R) to Celsius (°C) |