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18 Kelvin to Celsius

18 kelvin equals -255.15 celsius. Use the formula, worked example, and conversion table below to check the math.

18 K = -255.15 °C
°C = K - 273.15
Try: 13 K to °C 17 K to °C 19 K to °C 23 K to °C
18 K is also
18 K = -427.27 °F
K
-255.15 °C

Formula and Step-by-Step

°C = K - 273.15
  1. Start with 18 K
  2. Subtract 273.15: 18 - 273.15 = -255.15
  3. Result: 18 K = -255.15°C

18 K on the Temperature Scale

18 K = -255.15 °C
Freezing (0°C)
Body temp (37°C)
Boiling (100°C)

18 K equals -255.15 °C on the temperature scale.

Other Kelvin to Celsius Values

Kelvin (K) Celsius (°C)
1 K -272.15 °C
2 K -271.15 °C
5 K -268.15 °C
10 K -263.15 °C
15 K -258.15 °C
18 K -255.15 °C
20 K -253.15 °C
25 K -248.15 °C
50 K -223.15 °C
75 K -198.15 °C
100 K -173.15 °C
250 K -23.15 °C
500 K 226.85 °C
1,000 K 726.85 °C
calculate Kelvin to Celsius Converter swap_horiz Celsius to Kelvin Converter functions Kelvin to Celsius Formula thermostat All Temperature Conversions

Frequently Asked Questions

18 kelvin equals -255.15 celsius.
The formula is: °C = K - 273.15.
Use the celsius to kelvin converter. The reverse formula is: K = °C + 273.15.
The calculator uses the full-precision conversion factor for accuracy. Table values and displayed results are rounded for readability.
Temperature conversions use exact formulas (°C = K - 273.15). Displayed results are rounded for readability, while the calculator uses the full formula for maximum accuracy.
person Written by Sean Day verified Reviewed by UnitCompare update Last updated Mar 28, 2026