25 degrees Celsius equals 298.15 kelvin.
The Celsius temperature scale starts at the freezing point of water (0°C) and the Kelvin scale starts at absolute zero (-273.15°C). To convert Celsius to Kelvin, you add 273.15 to the Celsius value. So, 25°C plus 273.15 equals 298.15 K, which is the temperature in kelvin.
Conversion Tool
Result in kelvin:
Conversion Formula
The formula to convert Celsius (°C) to Kelvin (K) is:
K = °C + 273.15
This formula works because the Kelvin scale starts at absolute zero, which is -273.15°C. Adding 273.15 shifts the Celsius value up to match the Kelvin scale, so absolute zero becomes 0 K.
For example, converting 25°C to Kelvin step-by-step:
- Start with 25°C
- Add 273.15 to 25: 25 + 273.15 = 298.15
- The result is 298.15 K
Conversion Example
- Convert 10°C to Kelvin:
- Start with 10°C
- Add 273.15: 10 + 273.15 = 283.15
- Final temperature is 283.15 K
- Convert -5°C to Kelvin:
- Start with -5°C
- Add 273.15: -5 + 273.15 = 268.15
- Result is 268.15 K
- Convert 37°C to Kelvin:
- Begin with 37°C
- Add 273.15: 37 + 273.15 = 310.15
- This gives 310.15 K
- Convert 0°C to Kelvin:
- Take 0°C
- Add 273.15: 0 + 273.15 = 273.15
- Temperature is 273.15 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 |
To read the chart, find the Celsius temperature in the left column, then move right to find its corresponding Kelvin value. This helps quickly compare temperatures without doing math each time.
Related Conversion Questions
- What is 25 degrees Celsius in kelvin exactly?
- How do I convert 25 °C to kelvin manually?
- Is 25 Celsius the same as 298 kelvin?
- Why does converting 25 C to kelvin add 273.15?
- Can 25 degrees Celsius be below 0 kelvin?
- What is the formula to convert 25°C to kelvin?
- How to use a calculator to convert 25 celsius to kelvin?
Conversion Definitions
Celsius (°C): Celsius is a temperature scale where 0 degrees represents the freezing point of water and 100 degrees its boiling point at sea level. It’s used in most countries and scientific measurements, measuring temperature relative to water’s phase changes.
Kelvin (K): Kelvin is an absolute temperature scale starting at absolute zero, the coldest possible temperature where molecular motion stops. It uses the same increments as Celsius but has no negative numbers, making it useful in physics and engineering.
Conversion FAQs
Can Celsius temperature ever be negative in kelvin?
No, the kelvin scale starts at absolute zero, which is -273.15°C. Any Celsius temperature below -273.15°C cannot exist physically. So, kelvin values are never negative, while Celsius can be.
Why do we add 273.15 when converting Celsius to kelvin?
The addition of 273.15 shifts the Celsius scale upwards, aligning its zero point with absolute zero. Since 0 K equals -273.15°C, adding 273.15 to a Celsius value converts it directly to kelvin by adjusting for this offset.
Is the kelvin scale used in everyday weather reports?
No, kelvin is mainly used in scientific fields like physics and chemistry. Everyday weather reports mostly use Celsius or Fahrenheit because kelvin values are less intuitive for common temperature experiences.
How precise is the kelvin conversion from Celsius?
The conversion adds a fixed number 273.15, so the precision depends on how many decimal places you keep. Typically, conversions use two decimals, but more decimals increase accuracy in scientific calculations.
Can I convert kelvin back to Celsius easily?
Yes, simply subtract 273.15 from the kelvin value. For example, 298.15 K minus 273.15 equals 25°C. This reverses the conversion process to get Celsius from kelvin.