Celsius to Kelvin Converter
Convert temperatures from Celsius (°C) to Kelvin (K) instantly with precise calculations
Celsius to Kelvin Converter
About Celsius to Kelvin Conversion
Converting Celsius to Kelvin is fundamental in scientific calculations, particularly in physics, chemistry, and engineering. Kelvin is the SI base unit of temperature and is essential for thermodynamic calculations.
Conversion Formula
K = °C + 273.15
Example: 20°C = 20 + 273.15 = 293.15K
Quick Reference Table
| Celsius (°C) | Kelvin (K) |
|---|---|
| -273.15°C | 0K |
| -200°C | 73.15K |
| -100°C | 173.15K |
| 0°C | 273.15K |
| 20°C | 293.15K |
| 37°C | 310.15K |
| 100°C | 373.15K |
| 1000°C | 1273.15K |
Common Uses
- • Thermodynamics: Gas law calculations and heat transfer equations
- • Chemistry: Reaction kinetics and equilibrium calculations
- • Physics: Statistical mechanics and quantum physics
- • Engineering: Material science and thermal analysis
- • Astronomy: Stellar temperatures and cosmic phenomena
Understanding the Kelvin Scale
Key Facts about Kelvin:
- • Kelvin is an absolute temperature scale starting at absolute zero
- • No degree symbol (°) is used with Kelvin - just "K"
- • One Kelvin unit equals one Celsius degree in magnitude
- • Absolute zero (0K) is the theoretical lowest possible temperature
- • Named after Lord Kelvin (William Thomson)
Scientific Applications
The Kelvin scale is crucial in scientific calculations because it's an absolute scale. This means:
- • Gas Laws: PV = nRT requires temperature in Kelvin
- • Thermal Energy: Kinetic energy calculations use absolute temperature
- • Blackbody Radiation: Stefan-Boltzmann law uses Kelvin
- • Chemical Kinetics: Arrhenius equation requires absolute temperature
Conversion Tips
- • Always add 273.15 to convert from Celsius to Kelvin
- • Remember: Kelvin can never be negative
- • For rough calculations, 273 is often used instead of 273.15
- • Room temperature (20°C) ≈ 293K is a useful reference point
- • Water freezes at 273.15K and boils at 373.15K