TemperatureCelsius to Kelvin

Celsius to Kelvin

Methodology·How We Verify

Snapshot

1 Celsius equals 274.15 Kelvin.

Reference basis: This conversion uses a scale-and-offset equation (1 Celsius equals 274.15 Kelvin.).
Example: For 20 Celsius, the converted value equals 293.15 Kelvin.

Interactive conversion

Converter Calculator

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

274.15 Kelvin (K)

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API and AI agent access

Celsius to Kelvin.

Machine-readable identifiers

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

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": "celsius",
  "to": "kelvin"
}

Essential response

{
  "ok": true,
  "conversion": {
    "family": "temperature",
    "value": 1,
    "from": "celsius",
    "to": "kelvin",
    "result": {
      "raw": 274.15,
      "display": "274.15"
    },
    "canonicalPath": "/temperature/celsius-to-kelvin/"
  }
}

API, OpenAPI and WebMCP documentation

Explanation

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

Celsius (°C)	Kelvin (K)
-40	233.15
-20	253.15
0	273.15
20	293.15
32	305.15
37	310.15
50	323.15
100	373.15
212	485.15

Questions & answers

Frequently Asked Questions

What is 1 Celsius in Kelvin?

1 Celsius equals 274.15 Kelvin on this page.

What equation does this Celsius to Kelvin page use?

This page uses 1 Celsius equals 274.15 Kelvin., and the same equation drives the direct answer, calculator, table, and FAQ.

Is there a reverse page for Kelvin to Celsius?

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