TemperatureKelvin to Celsius

Kelvin to Celsius

Methodology·How We Verify

Snapshot

1 Kelvin equals -272.15 Celsius.

Reference basis: This conversion uses a scale-and-offset equation (1 Kelvin equals -272.15 Celsius.).
Example: For 20 Kelvin, the converted value equals -253.15 Celsius.

Interactive conversion

Converter Calculator

Decimals: 1.5 or 1,5. Fractions: 1/2. Scientific notation: 1e3. Write 1000 without grouping separators.

-272.15 Celsius (°C)

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API and AI agent access

Kelvin to Celsius.

Machine-readable identifiers

Conversion family: temperature
Source unit: kelvin
Target unit: celsius

Use these identifiers in the API request. Sources and model limits also apply to software clients.

Example API request and response

POST /api/v1/convert

Request

{
  "family": "temperature",
  "value": 1,
  "from": "kelvin",
  "to": "celsius"
}

Essential response

{
  "ok": true,
  "conversion": {
    "family": "temperature",
    "value": 1,
    "from": "kelvin",
    "to": "celsius",
    "result": {
      "raw": -272.15,
      "display": "-272.15"
    },
    "canonicalPath": "/temperature/kelvin-to-celsius/"
  }
}

API, OpenAPI and WebMCP documentation

Explanation

The converter converts Kelvin into Celsius with the exact offset formula C = K - 273.15. The direct answer, calculator, common values, and mirror Celsius to Kelvin page all stay aligned on the same exact temperature basis.

Method & Reference

Method basis: exact affine formula (scale + offset) shown in Snapshot.
Equation reference: use the Snapshot formula shown for this route.
Consistency rule: forward and reverse pages use inverse equations to preserve scale reference points.

Common Conversion Values

Kelvin (K)	Celsius (°C)
-40	—
-20	—
0	-273.15
20	-253.15
32	-241.15
37	-236.15
50	-223.15
100	-173.15
212	-61.15

Questions & answers

Frequently Asked Questions

What is 1 Kelvin in Celsius?

1 Kelvin equals -272.15 Celsius on this page.

What equation does this Kelvin to Celsius page use?

This page uses 1 Kelvin equals -272.15 Celsius., and the same equation drives the direct answer, calculator, table, and FAQ.

Is there a reverse page for Celsius to Kelvin?

Yes. The reverse direction has its own page at Celsius to Kelvin, where the inverse equation is used so the mirror route stays numerically aligned.