25 degrees Celsius is equal to 298.15 kelvin.
To convert Celsius to kelvin, you add 273.15 to the Celsius temperature. This is because the kelvin scale starts at absolute zero, which is -273.15°C, so shifting the Celsius scale by 273.15 aligns it with kelvin values.
Conversion Tool
Result in kelvin:
Conversion Formula
The formula to convert Celsius (°C) to kelvin (K) is:
K = °C + 273.15
It works because kelvin begins at absolute zero, which is -273.15°C on the Celsius scale. By adding 273.15, you shift the Celsius value up to the kelvin scale.
For example, converting 25°C to kelvin:
- Start with 25 (°C)
- Add 273.15
- 25 + 273.15 = 298.15 K
Conversion Example
- 10°C to kelvin:
- Take 10 (°C)
- Add 273.15
- 10 + 273.15 = 283.15 K
- -5°C to kelvin:
- Take -5 (°C)
- Add 273.15
- -5 + 273.15 = 268.15 K
- 37°C to kelvin:
- Take 37 (°C)
- Add 273.15
- 37 + 273.15 = 310.15 K
- 0°C to kelvin:
- Take 0 (°C)
- Add 273.15
- 0 + 273.15 = 273.15 K
- 100°C to kelvin:
- Take 100 (°C)
- Add 273.15
- 100 + 273.15 = 373.15 K
Conversion Chart
| Celsius (°C) | Kelvin (K) |
|---|---|
| 0.0 | 273.15 |
| 5.0 | 278.15 |
| 10.0 | 283.15 |
| 15.0 | 288.15 |
| 20.0 | 293.15 |
| 25.0 | 298.15 |
| 30.0 | 303.15 |
| 35.0 | 308.15 |
| 40.0 | 313.15 |
| 45.0 | 318.15 |
| 50.0 | 323.15 |
The chart shows Celsius temperatures from 0.0 to 50.0 along with their kelvin equivalents. To use it, find the Celsius value in the left column, then see its corresponding kelvin value on the right. This helps quick reference without calculation.
Related Conversion Questions
- How many kelvin is 25 degrees Celsius?
- What is the kelvin temperature when Celsius is 25?
- Convert 25°C to kelvin step by step?
- Why does 25 Celsius equal 298.15 kelvin?
- Is 25 Celsius above room temperature in kelvin?
- How to use a formula to change 25 c into kelvin?
- What kelvin value corresponds to 25 degrees Celsius exactly?
Conversion Definitions
C (Celsius): Celsius is a temperature scale used to measure how hot or cold something is. It sets the freezing point of water at 0 degrees and boiling point at 100 degrees under standard atmospheric pressure. The scale is widely used in science, weather forecasts, and daily temperature measurements.
Kelvin: Kelvin is the SI base unit of temperature, starting at absolute zero, the coldest possible temperature where particles stop moving. It measures thermal energy directly and, unlike Celsius, has no negative values. Scientists prefer kelvin for precise temperature calculations in physics and chemistry.
Conversion FAQs
Can kelvin temperatures be negative?
No, kelvin scale starts at absolute zero (0 K), which is the lowest possible temperature. Temperatures below 0 K do not exist because it would require particles to have less than zero thermal energy, which is not physically possible.
Why add 273.15 exactly to convert Celsius to kelvin?
The value 273.15 shifts Celsius values to start from absolute zero. Absolute zero is -273.15°C, so adding 273.15 moves Celsius measurements up to kelvin scale, where zero kelvin means no particle motion.
Is converting 25°C to kelvin useful in daily life?
While kelvin is mainly used in science, converting 25°C to kelvin can help in scientific calculations, physics, or engineering where absolute temperature is required. For everyday weather or cooking, Celsius is more practical.
Does this conversion change for negative Celsius values?
No, the same formula applies for negative Celsius temperatures. For example, -10°C converted to kelvin is -10 + 273.15 = 263.15 K. The addition always shifts the Celsius value to kelvin scale.
Are kelvin and Celsius increments equal?
Yes, the size of one kelvin is equal to one degree Celsius. The only difference is their starting points; kelvin starts at absolute zero, and Celsius starts at water’s freezing point.