---
title: "100 °C to K = 373.15 K"
description: "100 degrees Celsius is 373.15 kelvin. The arithmetic, a table of nearby values, and a converter for any other number."
url: https://atoneplace.net/convert/100-celsius-to-kelvin/
site: "At One Place"
---

# 100 °C to K

**100 degrees Celsius in kelvin: 100 °C = 373.15 K**

K = °C + 273.15

100 degrees Celsius is 373.15 kelvin. To get there, use K = °C + 273.15.

## Values either side

*Degrees Celsius near 100, converted to kelvin.*

| Degrees Celsius | Kelvin |
| --- | --- |
| 80 °C | 353.15 |
| 85 °C | 358.15 |
| 90 °C | 363.15 |
| 95 °C | 368.15 |
| 100 °C ← | 373.15 |
| 110 °C | 383.15 |
| 120 °C | 393.15 |
| 125 °C | 398.15 |
| 150 °C | 423.15 |

## How the conversion works

The relationship is K = °C + 273.15. Both units measure temperature, so the conversion is a fixed formula that never changes. Temperature scales are the one common case where converting is not just multiplication — Celsius and Fahrenheit each put their zero in a different place, so an offset is applied as well as a scale factor.

## Common questions

### What is 100 °C in kelvin?

100 °C is 373.15 K.

### How do you convert degrees Celsius to kelvin?

Use K = °C + 273.15.

## Related pages

- [Degrees Celsius to kelvin](https://atoneplace.net/convert/celsius-to-kelvin/)
- [100 K to °C](https://atoneplace.net/convert/100-kelvin-to-celsius/)
- [80 °C to K](https://atoneplace.net/convert/80-celsius-to-kelvin/)
- [85 °C to K](https://atoneplace.net/convert/85-celsius-to-kelvin/)
- [90 °C to K](https://atoneplace.net/convert/90-celsius-to-kelvin/)
- [95 °C to K](https://atoneplace.net/convert/95-celsius-to-kelvin/)
- [110 °C to K](https://atoneplace.net/convert/110-celsius-to-kelvin/)
- [120 °C to K](https://atoneplace.net/convert/120-celsius-to-kelvin/)
- [125 °C to K](https://atoneplace.net/convert/125-celsius-to-kelvin/)
- [150 °C to K](https://atoneplace.net/convert/150-celsius-to-kelvin/)

## Sources

- Guide for the Use of the International System of Units (SP 811) — NIST (https://www.nist.gov/pml/special-publication-811) [Public domain (US Government)]
- The International System of Units (SI Brochure) — Bureau International des Poids et Mesures (https://www.bipm.org/en/publications/si-brochure)
- Calculated on this page — At One Place (/about/)