Celsius to Kelvin (°C to K) Converter
Convert Celsius to Kelvin (°C to K) instantly. Formula: K = °C + 273.15. Free temperature converter with examples and a conversion chart.
Celsius to Kelvin (°C to K) Converter
Our free Celsius to Kelvin converter changes any temperature from °C to K instantly. Enter a value — including negative numbers and decimals — and get an accurate result in one click.
Celsius to Kelvin formula
K = °C + 273.15
Example: 20 °C = 293.15 K.
Celsius to Kelvin chart
| Celsius (°C) | Kelvin (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 |
Celsius and Kelvin explained
Celsius (°C): The Celsius scale sets 0 °C as the freezing point and 100 °C as the boiling point of water at sea level. It is used for weather and cooking in most countries.
Kelvin (K): Kelvin is the SI unit of temperature used in science. It starts at absolute zero (0 K = −273.15 °C), so it has no negative values.
How to use the Celsius to Kelvin converter
- Enter the temperature in Celsius.
- Choose the precision.
- Click Submit.
- Read the result in Kelvin.
Common use cases
- Understanding weather forecasts when travelling
- Following recipes and oven temperatures from other countries
- Science, chemistry and physics homework
- Checking body temperature readings
Frequently asked questions
What is 0 °C in Kelvin?
0 °C equals 273.15 K.
At what temperature are Celsius and Fahrenheit equal?
At −40 degrees: −40 °C = −40 °F.
How do I convert back?
Use our Kelvin to Celsius converter.
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Convert Kelvin to Celsius (K to °C) instantly. Formula: °C = K − 273.15. Free temperature converter with examples and a conversion chart.
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