25 Celsius is equal to 298.15 Kelvin.
To convert a temperature from Celsius to Kelvin, you add 273.15 to the Celsius value. This is because the Kelvin scale starts at absolute zero, which is -273.15°C, so adding this offset shifts the scale accordingly.
Conversion Tool
Result in kelvin:
Conversion Formula
The formula to convert Celsius (°C) to Kelvin (K) is:
K = °C + 273.15
This works because Kelvin is an absolute temperature scale starting at absolute zero, which is -273.15°C. To find the Kelvin equivalent of a Celsius value, the temperature offset between the two scales must be added. This shifts Celsius values upward to start from zero Kelvin.
For example, converting 25°C:
- Take the Celsius value: 25
- Add 273.15: 25 + 273.15 = 298.15
- The result is 298.15 K
Conversion Example
- Convert 0°C to Kelvin:
- Start with 0°C
- Add 273.15 to it: 0 + 273.15 = 273.15 K
- Convert -10°C to Kelvin:
- Take -10°C
- Add 273.15: -10 + 273.15 = 263.15 K
- Convert 37°C to Kelvin:
- Start with 37°C
- Add 273.15: 37 + 273.15 = 310.15 K
- Convert 100°C to Kelvin:
- Begin with 100°C
- Add 273.15: 100 + 273.15 = 373.15 K
Conversion Chart
The chart below shows temperatures from 0.0°C to 50.0°C converted to Kelvin. You can find the Kelvin value by adding 273.15 to the Celsius temperature. Use the chart for quick reference without calculation.
| Celsius (°C) | Kelvin (K) | Celsius (°C) | Kelvin (K) | Celsius (°C) | Kelvin (K) |
|---|---|---|---|---|---|
| 0.0 | 273.15 | 17.0 | 290.15 | 34.0 | 307.15 |
| 1.0 | 274.15 | 18.0 | 291.15 | 35.0 | 308.15 |
| 2.0 | 275.15 | 19.0 | 292.15 | 36.0 | 309.15 |
| 3.0 | 276.15 | 20.0 | 293.15 | 37.0 | 310.15 |
| 4.0 | 277.15 | 21.0 | 294.15 | 38.0 | 311.15 |
| 5.0 | 278.15 | 22.0 | 295.15 | 39.0 | 312.15 |
| 6.0 | 279.15 | 23.0 | 296.15 | 40.0 | 313.15 |
| 7.0 | 280.15 | 24.0 | 297.15 | 41.0 | 314.15 |
| 8.0 | 281.15 | 25.0 | 298.15 | 42.0 | 315.15 |
| 9.0 | 282.15 | 26.0 | 299.15 | 43.0 | 316.15 |
| 10.0 | 283.15 | 27.0 | 300.15 | 44.0 | 317.15 |
| 11.0 | 284.15 | 28.0 | 301.15 | 45.0 | 318.15 |
| 12.0 | 285.15 | 29.0 | 302.15 | 46.0 | 319.15 |
| 13.0 | 286.15 | 30.0 | 303.15 | 47.0 | 320.15 |
| 14.0 | 287.15 | 31.0 | 304.15 | 48.0 | 321.15 |
| 15.0 | 288.15 | 32.0 | 305.15 | 49.0 | 322.15 |
| 16.0 | 289.15 | 33.0 | 306.15 | 50.0 | 323.15 |
Related Conversion Questions
- What is the Kelvin equivalent of 25 degrees Celsius?
- How to convert 25°C into Kelvin accurately?
- Why do I add 273.15 when converting Celsius to Kelvin for 25?
- Is 25 Celsius higher or lower than 300 Kelvin?
- What temperature in Kelvin corresponds to 25°C in daily weather?
- How does 25 degrees Celsius compare to Kelvin scale?
- What formula to use for turning 25 Celsius into Kelvin?
Conversion Definitions
Celsius: Celsius is a temperature scale based on 0°C for the freezing point of water and 100°C for the boiling point at sea level. It is widely used in most countries for weather, cooking, and scientific purposes, providing a relative measure of thermal energy compared to water’s phase changes.
Kelvin: Kelvin is an absolute temperature scale starting at absolute zero, the theoretically lowest temperature possible where particles have minimum thermal motion. Unlike Celsius, Kelvin does not use degrees, and it is the standard unit for temperature in physics and engineering.
Conversion FAQs
What happens if I convert negative Celsius values to Kelvin?
Negative Celsius values convert to positive Kelvin values since Kelvin starts at absolute zero (-273.15°C). For example, -50°C converts to 223.15 K by adding 273.15. This means Kelvin can’t be negative, reflecting absolute thermal energy.
Can Kelvin values be converted back to Celsius?
Yes, to convert Kelvin back to Celsius, subtract 273.15 from the Kelvin temperature. For example, 298.15 K minus 273.15 equals 25°C. This reversibility allows switching between scales depending on application or preference.
Is Kelvin used in everyday weather reporting like Celsius?
Kelvin is rarely used in daily weather forecasts because it’s less intuitive for common experiences. Celsius is preferred for human comfort levels, while Kelvin is mostly for scientific measurements, especially in physics and chemistry.
Why does the formula add exactly 273.15, not 273?
The value 273.15 represents the precise offset between the Celsius and Kelvin scales, accounting for water’s freezing point. Using 273 alone would introduce an error of 0.15 K, which might be negligible in everyday use but critical in precise scientific contexts.
Does converting Celsius to Kelvin change the temperature physically?
No, converting between Celsius and Kelvin only changes the numerical representation of temperature, not the physical thermal energy. It’s simply shifting the zero point to absolute zero, a different reference frame for measurement.
