Celsius to Kelvin Converter
Quickly convert Celsius (°C) to Kelvin (K) with precision. Enter a value and get instant results.
1 Celsius (°C) = 274.15 Kelvin (K)
Conversion Table
| Celsius (°C) | Kelvin (K) |
|---|---|
| 1 °C | 274.15 K |
| 5 °C | 278.15 K |
| 10 °C | 283.15 K |
| 25 °C | 298.15 K |
| 50 °C | 323.15 K |
| 100 °C | 373.15 K |
| 500 °C | 773.15 K |
| 1000 °C | 1273.15 K |
What Is Celsius to Kelvin Conversion?
Converting Celsius to Kelvin translates everyday temperature readings to the SI base unit of thermodynamic temperature. The conversion is simple: add 273.15 to the Celsius value. Since both scales have the same degree size, the conversion only shifts the zero point. Celsius uses the freezing point of water as zero, while Kelvin uses absolute zero. This conversion is necessary for scientific calculations, physics equations, and engineering applications that require absolute temperature values.
Conversion Formula
K = °C + 273.15
When Do You Need This Conversion?
You need Celsius to Kelvin conversion when performing thermodynamic calculations in physics or chemistry, when inputting temperature into scientific equations that require Kelvin, when calibrating scientific instruments, or when working with standards and specifications that define temperatures in Kelvin.
Frequently Asked Questions
Add 273.15 to the Celsius temperature. For example: 25 °C + 273.15 = 298.15 K (typical room temperature). Key conversions: −273.15 °C = 0 K, −40 °C = 233.15 K, 0 °C = 273.15 K, 20 °C = 293.15 K, 37 °C = 310.15 K, 100 °C = 373.15 K.
No, Kelvin values cannot be negative because the Kelvin scale starts at absolute zero (0 K = −273.15 °C), the lowest physically possible temperature. Any temperature above absolute zero is a positive Kelvin value. This is one of the key properties that makes Kelvin useful in scientific calculations — there are no negative values to complicate equations.
The degree sizes are identical. A change of 1 Kelvin equals a change of 1 degree Celsius. The only difference is the zero point: 0 K = −273.15 °C. This means temperature differences are the same in both scales. If water heats from 20 °C to 25 °C, that is a 5 °C rise, which is also exactly a 5 K rise.