Kelvin to Celsius Converter
Convert kelvin to celsius using the formula °C = K - 273.15. The calculator below shows higher precision results. The reference table is rounded for readability.
Formula and Step-by-Step
°C = K - 273.15
Step-by-step: 1 K to °C
- Start with 1 K
- Subtract 273.15: 1 - 273.15 = -272.15
- Result: 1 K = -272.15°C
Conversion Table
Common kelvin to celsius values. The table and calculator both use the same conversion formula shown above.
| Kelvin (K) | Celsius (°C) |
|---|---|
| -40 K | -313.15 °C |
| -20 K | -293.15 °C |
| 0 K | -273.15 °C |
| 10 K | -263.15 °C |
| 20 K | -253.15 °C |
| 25 K | -248.15 °C |
| 30 K | -243.15 °C |
| 37 K | -236.15 °C |
| 50 K | -223.15 °C |
| 100 K | -173.15 °C |
| 150 K | -123.15 °C |
| 200 K | -73.15 °C |
What Are Kelvin and Celsius?
What is a Kelvin?
Kelvin is the SI base unit of temperature. It starts at absolute zero (the coldest possible temperature) and uses the same degree size as Celsius. 0 K = -273.15 degrees C.
What is a Celsius?
Celsius is a temperature scale where 0 degrees is the freezing point of water and 100 degrees is the boiling point. It is used by most countries worldwide.
Why convert kelvin to celsius?
People typically convert kelvin to celsius when converting scientific temperature readings to everyday Celsius values.
Frequently Asked Questions
1 kelvin equals -272.15 celsius. This uses the formula: °C = K - 273.15.
The formula is: °C = K - 273.15. See the K to °C formula page for step-by-step worked examples.
Use the celsius to kelvin converter. 1 °C = 274.15 K.
Most unit conversions use simple multiplication because the scales share a zero point. Temperature scales have different zero points (0 degrees C = 32 degrees F), so the formulas require both multiplication and addition or subtraction.
For Celsius to Fahrenheit, double the value and add 30. For Fahrenheit to Celsius, subtract 30 and halve. These give close approximations for everyday use.