The temperature of 35°C converts to 308.15 Kelvin.
To convert Celsius to Kelvin, you add 273.15 to the Celsius temperature because Kelvin starts at absolute zero, which is -273.15°C. So, 35°C + 273.15 = 308.15 K, providing an exact temperature in Kelvin scale that measures absolute thermal energy.
What is the Conversion from Celsius to Kelvin
The conversion from Celsius to Kelvin involves adding 273.15 because Kelvin is based on absolute zero, the point where particles have minimal thermal motion. Since Celsius measures temperature relative to the freezing point of water, adding 273.15 shifts the scale to absolute zero. For example, converting 35°C to Kelvin involves simple math: 35 + 273.15 equals 308.15 K.
Conversion Tool
Result in kelvin:
Conversion Formula
The formula to convert Celsius to Kelvin adds 273.15 to the Celsius value. This works because Kelvin scale starts at absolute zero, -273.15°C, and increases uniformly. For example, converting 25°C involves: 25 + 273.15 = 298.15 K. The math is straightforward and ensures accurate results across the scale.
Conversion Example
- Convert 20°C: 20 + 273.15 = 293.15 K
- Start with 20°C.
- Add 273.15 to convert to Kelvin.
- Result: 293.15 Kelvin.
- Convert 50°C: 50 + 273.15 = 323.15 K
- Begin with 50°C.
- Add 273.15 to shift to Kelvin.
- Answer: 323.15 Kelvin.
- Convert 0°C: 0 + 273.15 = 273.15 K
- Start with freezing point of water.
- Add 273.15 to get Kelvin.
- Result: 273.15 Kelvin.
- Convert -10°C: -10 + 273.15 = 263.15 K
- Negative Celsius temperature.
- Add 273.15 to find Kelvin.
- Answer: 263.15 Kelvin.
Conversion Chart
°C | Kelvin |
---|---|
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 |
55.0 | 328.15 |
60.0 | 333.15 |
This chart helps you quickly find Kelvin equivalents for Celsius temperatures between 10 and 60 degrees. Simply locate the Celsius value and read across to see its Kelvin conversion.
Related Conversion Questions
- How do I convert 35 degrees Celsius to Kelvin manually?
- What is the Kelvin temperature equivalent of 35°C?
- If my thermometer reads 35°C, what is that in Kelvin?
- How much is 35°C in absolute temperature units?
- Can you tell me the Kelvin value for a Celsius reading of 35?
- What formula do I use to change Celsius to Kelvin for 35 degrees?
- Is 35°C the same as 308.15 Kelvin?
Conversion Definitions
“c” stands for Celsius, a temperature scale where 0°C is freezing water and 100°C boiling water at standard conditions, based on water’s properties. It measures temperature relative to these points, with a degree of temperature change that is 1/100th of the difference between freezing and boiling points.
“Kelvin” is the SI base unit of thermodynamic temperature, starting at absolute zero, the point where particles have minimal thermal energy. It measures temperature without degrees, with each unit equal to one Celsius degree, but shifted so that 0 K is absolute zero.
Conversion FAQs
Why do I add 273.15 to Celsius to get Kelvin?
This addition shifts the Celsius scale, which begins at the freezing point of water, to the Kelvin scale that starts at absolute zero, the lowest possible temperature. The 273.15 adjustment aligns the two scales so that Kelvin measures total thermal energy from absolute zero up.
What happens if I convert -10°C to Kelvin?
Adding 273.15 to -10°C results in 263.15 Kelvin, indicating the absolute temperature when water is well below freezing. Negative Celsius values simply decrease the Kelvin temperature below 273.15 but cannot go below zero Kelvin, which is absolute zero.
Can I convert Celsius to Kelvin for any temperature?
Yes, the conversion formula works for all Celsius temperatures, whether positive, negative, or zero, because Kelvin is an absolute scale. Just add 273.15 to any Celsius value, and you get the correct Kelvin temperature.
Last Updated : 23 June, 2025


Sandeep Bhandari holds a Bachelor of Engineering in Computers from Thapar University (2006). He has 20 years of experience in the technology field. He has a keen interest in various technical fields, including database systems, computer networks, and programming. You can read more about him on his bio page.