K to °C Conversion Calculator
Click on the following link if you want to convert Celsius to Kelvin – °C to K
History
The Kelvin scale was developed by Lord Kelvin in 1848 to measure temperature from absolute zero — the theoretical point where all thermal motion ceases.
The Celsius scale, developed earlier by Anders Celsius, is based on the properties of water and is widely used in daily life.
Both scales increase in equal steps, so converting between them is simple: you just shift by 273.15.
Common Usage
- Kelvin (K) is used in scientific fields, such as physics, astronomy, and thermodynamics.
- Celsius (°C) is used in weather, cooking, and everyday measurements.
For example, a scientist might record a temperature as 310 K, which equals 37°C, the normal human body temperature.
Kelvin to Celsius Conversion Formula
The formula for converting Kelvin to Celsius is:
°C = K – 273.15
Example:
Convert 300 K to Celsius.
300 – 273.15 = 26.85°C
So, 300 Kelvin equals about 26.9°C.
Conversion Table
| Kelvin (K) | Celsius (°C) |
|---|---|
| 0 K | -273.15 °C |
| 100 K | -173.15 °C |
| 200 K | -73.15 °C |
| 250 K | -23.15 °C |
| 273 K | 0 °C |
| 300 K | 26.85 °C |
| 310 K | 36.85 °C |
| 350 K | 76.85 °C |
| 400 K | 126.85 °C |
| 500 K | 226.85 °C |
Fun Facts
- Absolute zero (0 K) is unreachable in practice, though scientists have come within billionths of a Kelvin in laboratories.
- The Sun’s surface temperature is about 5,778 K (over 5,500°C).
- Kelvin is widely used in scientific journals, especially when discussing energy and thermodynamics.
Frequently Asked Questions
1. How do I convert Kelvin to Celsius?
Subtract 273.15 from the Kelvin value.
2. What is 0 K in Celsius?
-273.15°C — absolute zero.
3. Why don’t we say “degrees Kelvin”?
The Kelvin scale doesn’t use degrees; it’s an absolute unit.
4. What is 300 K in Celsius?
About 26.85°C.
5. Can Kelvin be negative?
No, 0 K is the lowest possible temperature.
