Instantly convert temperatures between Celsius and Kelvin scales with our real-time, bidirectional conversion tool. Accurate scientific calculations for researchers, students, and professionals.
The Celsius scale (°C) is used by most countries worldwide for everyday temperature measurements. Water freezes at 0°C and boils at 100°C at sea level. This scale is named after the Swedish astronomer Anders Celsius.
The Kelvin scale (K) is the SI base unit for thermodynamic temperature. Absolute zero (0K) is the theoretical point where molecular motion stops. Kelvin is used in scientific contexts because it's an absolute temperature scale.
Celsius to Kelvin
K = °C + 273.15
Kelvin to Celsius
°C = K - 273.15
Absolute zero is -273.15°C and 0K. It's the theoretical lowest possible temperature where molecular motion ceases.
Kelvin is an absolute temperature scale with no negative values, making it ideal for scientific calculations and thermodynamic equations.
Yes, the conversion is mathematically exact with the formula K = °C + 273.15, making it precise for scientific applications.
Our converter uses double-precision floating point arithmetic, providing results accurate to 15 decimal places for all practical purposes.