🌡️Kelvin to Celsius
Convert kelvin (K) to celsius (°C). °C = K − 273.15 — with a table of common temperatures and worked steps.
Kelvin to Celsius conversion table
| Kelvin | Celsius |
|---|---|
| 1 | -272.15 °C |
| 2 | -271.15 °C |
| 5 | -268.15 °C |
| 10 | -263.15 °C |
| 20 | -253.15 °C |
| 50 | -223.15 °C |
| 100 | -173.15 °C |
| 250 | -23.15 °C |
| 500 | 226.85 °C |
| 1000 | 726.85 °C |
Machine API (x402)
$0.001 / callThe same query is available to AI agents as a paid JSON endpoint — pre-configured for this pair:
GET /api/v1/converters/temperature-converter?value=1&from=k&to=c HTTP/1.1
Host: agenttools-hub.vercel.app
→ 402 (x402 payment required)
→ 200 {"tool": "converters/temperature-converter", "result": { "value": -272.15, "answer": "-272.15 °C" }}Frequently asked questions
What is 1 Kelvin equal to?
1 Kelvin equals °C = K − 273.15 — see the conversion table below for more magnitudes.
What is the formula for kelvin to celsius?
Use the tool's Kelvin → Celsius factor shown in the result details. The conversion is a fixed multiplication, so it is exact within the displayed precision.
At what temperature are Celsius and Fahrenheit equal?
−40° — minus 40 Celsius and minus 40 Fahrenheit are the same temperature.
Why does Kelvin have no degree sign?
Kelvin is an absolute scale starting at absolute zero; by SI convention its values are written as K, not °K.
What is absolute zero in Fahrenheit?
Absolute zero (0 K) is −273.15 °C, which equals −459.67 °F.