100 Celsius to Kelvin (°C to K) – Instant & Accurate
Last updated: February 28, 2026
100 °C = 373.15 K
Using the formula K = °C + 273.15: 100 + 273.15 = 373.15 K
How to convert from Celsius to Kelvin
It is easy to convert a temperature value from Celsius to Kelvin by using the formula below:
K = °C + 273.15
To change 100° Celsius to Kelvin, just add 273.15 to the Celsius value.
Step-by-step Solution:
Write down the formula: K = °C + 273.15
Plug the value in the formula: 100 + 273.15
Add 273.15: 373.15 (answer)
Nearby Conversions
Celsius to Kelvin Conversion Table (1–100 °C)
| Celsius | Kelvin | Celsius | Kelvin |
|---|---|---|---|
| 1 | 274.15 | 2 | 275.15 |
| 3 | 276.15 | 4 | 277.15 |
| 5 | 278.15 | 6 | 279.15 |
| 7 | 280.15 | 8 | 281.15 |
| 9 | 282.15 | 10 | 283.15 |
| 11 | 284.15 | 12 | 285.15 |
| 13 | 286.15 | 14 | 287.15 |
| 15 | 288.15 | 16 | 289.15 |
| 17 | 290.15 | 18 | 291.15 |
| 19 | 292.15 | 20 | 293.15 |
| 21 | 294.15 | 22 | 295.15 |
| 23 | 296.15 | 24 | 297.15 |
| 25 | 298.15 | 26 | 299.15 |
| 27 | 300.15 | 28 | 301.15 |
| 29 | 302.15 | 30 | 303.15 |
| 31 | 304.15 | 32 | 305.15 |
| 33 | 306.15 | 34 | 307.15 |
| 35 | 308.15 | 36 | 309.15 |
| 37 | 310.15 | 38 | 311.15 |
| 39 | 312.15 | 40 | 313.15 |
| 41 | 314.15 | 42 | 315.15 |
| 43 | 316.15 | 44 | 317.15 |
| 45 | 318.15 | 46 | 319.15 |
| 47 | 320.15 | 48 | 321.15 |
| 49 | 322.15 | 50 | 323.15 |
| 51 | 324.15 | 52 | 325.15 |
| 53 | 326.15 | 54 | 327.15 |
| 55 | 328.15 | 56 | 329.15 |
| 57 | 330.15 | 58 | 331.15 |
| 59 | 332.15 | 60 | 333.15 |
| 61 | 334.15 | 62 | 335.15 |
| 63 | 336.15 | 64 | 337.15 |
| 65 | 338.15 | 66 | 339.15 |
| 67 | 340.15 | 68 | 341.15 |
| 69 | 342.15 | 70 | 343.15 |
| 71 | 344.15 | 72 | 345.15 |
| 73 | 346.15 | 74 | 347.15 |
| 75 | 348.15 | 76 | 349.15 |
| 77 | 350.15 | 78 | 351.15 |
| 79 | 352.15 | 80 | 353.15 |
| 81 | 354.15 | 82 | 355.15 |
| 83 | 356.15 | 84 | 357.15 |
| 85 | 358.15 | 86 | 359.15 |
| 87 | 360.15 | 88 | 361.15 |
| 89 | 362.15 | 90 | 363.15 |
| 91 | 364.15 | 92 | 365.15 |
| 93 | 366.15 | 94 | 367.15 |
| 95 | 368.15 | 96 | 369.15 |
| 97 | 370.15 | 98 | 371.15 |
| 99 | 372.15 | 100 | 373.15 |
Related Temperature Conversions
Temperature Converters
- Celsius to Fahrenheit (°C to °F)
- Fahrenheit to Celsius (°F to °C)
- Celsius to Kelvin (°C to K)
- Kelvin to Celsius (K to °C)
- Fahrenheit to Kelvin (°F to K)
- Kelvin to Fahrenheit (K to °F)
- All Temperature Tools
Popular Celsius to Kelvin conversions
More Temperature Conversions
Boiling Point in Kelvin
100 °C equals 373.15 K, the boiling point of water at standard pressure. In thermodynamic calculations, using the Kelvin value is essential because ratios must be meaningful: a system at 373.15 K has genuinely more thermal energy than one at 273.15 K in a way that can be expressed as a ratio (approximately 1.37:1), while the Celsius equivalents (100 °C and 0 °C) do not support ratio comparisons.
See also: Oven Temperature Conversion Guide with Gas Mark equivalents.
Data Accuracy
The Kelvin is the SI base unit for thermodynamic temperature, defined since 2019 by fixing the Boltzmann constant at exactly 1.380 649 × 10−23 J/K. All conversions on this page apply the relation K = °C + 273.15, computed in double-precision floating point and rounded to one decimal place for display.
About This Page
Content maintained by the CelsiusFahrenheit.co editorial team. All conversions follow the International Temperature Scale of 1990 (ITS-90) as defined by the Bureau International des Poids et Mesures (BIPM). Calculations use IEEE 754 double-precision arithmetic. Last reviewed: February 2026.