🌡️Celsius to Kelvin
Convert celsius (°C) to kelvin (K). K = °C + 273.15 — with a table of common temperatures and worked steps.
Celsius to Kelvin conversion table
| Celsius | Kelvin |
|---|---|
| 1 | 274.15 K |
| 2 | 275.15 K |
| 5 | 278.15 K |
| 10 | 283.15 K |
| 20 | 293.15 K |
| 50 | 323.15 K |
| 100 | 373.15 K |
| 250 | 523.15 K |
| 500 | 773.15 K |
| 1000 | 1,273.15 K |
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=c&to=k HTTP/1.1
Host: agenttools-hub.vercel.app
→ 402 (x402 payment required)
→ 200 {"tool": "converters/temperature-converter", "result": { "value": 274.15, "answer": "274.15 K" }}Frequently asked questions
What is 1 Celsius equal to?
1 Celsius equals K = °C + 273.15 — see the conversion table below for more magnitudes.
What is the formula for celsius to kelvin?
Use the tool's Celsius → Kelvin 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.