100 Celsius is equal to 373.15 Kelvin.
Table of Contents
When converting from Celsius to Kelvin, you add 273.15 to the Celsius temperature. This is because Kelvin starts at absolute zero, which is −273.15°C, so shifting the Celsius scale by this value aligns it correctly with Kelvin.
Conversion Tool
Result in kelvin:
Conversion Formula
The formula to convert Celsius to Kelvin is: K = °C + 273.15. This formula adds 273.15 to the Celsius temperature to shift the scale so that its zero matches absolute zero.
This works because the Kelvin scale starts at absolute zero, which is the lowest temperature possible. Celsius zero represents the freezing point of water, but Kelvin zero is absolute zero, so the offset of 273.15 aligns those points.
Example: converting 100°C to Kelvin:
- Start with 100 (the Celsius temperature)
- Add 273.15
- 100 + 273.15 = 373.15 K
Conversion Example
- Convert 25°C to Kelvin:
- Take 25 (Celsius value)
- Add 273.15
- 25 + 273.15 = 298.15 K
- Convert 0°C to Kelvin:
- 0 + 273.15
- Equals 273.15 K
- Convert -40°C to Kelvin:
- -40 + 273.15
- Equals 233.15 K
- Convert 50°C to Kelvin:
- 50 + 273.15
- Equals 323.15 K
Conversion Chart
| Celsius (°C) | Kelvin (K) |
|---|---|
| 75.0 | 348.15 |
| 80.0 | 353.15 |
| 85.0 | 358.15 |
| 90.0 | 363.15 |
| 95.0 | 368.15 |
| 100.0 | 373.15 |
| 105.0 | 378.15 |
| 110.0 | 383.15 |
| 115.0 | 388.15 |
| 120.0 | 393.15 |
| 125.0 | 398.15 |
This chart provide a quick reference for converting Celsius values between 75.0 and 125.0 to Kelvin. To use it, find the Celsius temperature in the left column, then read the corresponding Kelvin value on the right.
Related Conversion Questions
- What is 100 degrees Celsius expressed in kelvin?
- How do I convert 100°C to kelvin accurately?
- Is 100 Celsius the same as 373.15 kelvin?
- Can you show me the kelvin equivalent of 100°C?
- Why do I add 273.15 when converting 100 Celsius to kelvin?
- What temperature in kelvin corresponds to 100 degrees Celsius?
- How to calculate kelvin from Celsius with example 100°C?
Conversion Definitions
Celsius: Celsius is a temperature scale based on the freezing and boiling points of water at standard atmospheric pressure. It is divided into 100 equal parts between 0° (freezing) and 100° (boiling), and widely used for weather reports and scientific measurements.
Kelvin: Kelvin is the absolute temperature scale in science, starting at absolute zero, where all molecular motion stops. It uses the same unit size as Celsius but its zero point is -273.15°C, making it essential in physics and thermodynamics calculations.
Conversion FAQs
Why is the Kelvin scale shifted by 273.15 from Celsius?
The Kelvin scale starts at absolute zero, the lowest possible temperature where particles have minimal energy. Celsius zero is the freezing point of water, so adding 273.15 aligns the zero points of the two scales, allowing temperatures to be compared directly without negative values in Kelvin.
Can the Kelvin temperature be negative?
Kelvin temperatures cannot be negative because zero Kelvin is absolute zero, representing the absence of thermal energy. Temperatures below zero kelvin have no physical meaning in classical thermodynamics, so the scale starts at zero and increases from there.
Is the size of one degree the same in Celsius and Kelvin?
Yes, one degree Celsius is equal in size to one kelvin. The difference lies only in the starting points of the scales. This means converting between them involves adding or subtracting 273.15 but not changing the incremental value of one degree.
Why use Kelvin instead of Celsius in science?
Kelvin is preferred in scientific measurements because it begins at absolute zero, making it easier to work with thermodynamic equations and absolute temperature values. Celsius can have negative values, which complicates calculations involving energy and particle motion.
What happens if I forget to add 273.15 converting Celsius to Kelvin?
Forgetting to add 273.15 leads to incorrect results because Celsius and Kelvin scales start at different points. Using Celsius values directly in Kelvin-based formulas would produce errors, affecting scientific accuracy and any calculation relying on absolute temperature.