Celsius to Kelvin Converter
Free online Celsius to Kelvin converter. Instantly convert °C to K with formula, conversion table, and step-by-step examples for science and engineering.
Reviewed by UnitKick Editorial Team · Last updated
Conversion Table
| Celsius (°C) | Kelvin (K) |
|---|---|
| -273.15 | 0 |
| 0 | 273.15 |
| 20 | 293.15 |
| 100 | 373.15 |
How to Convert Celsius to Kelvin
To convert celsius to kelvin, use the following formula:
K = °C + 273.15
Example: Convert -273.15 °C to K:
-273.15 °C = 0 K
When to Use This C to K Converter
Use this celsius to kelvin converter when temperature conversions are useful for weather, cooking temperatures, scientific notes, and equipment settings.
- Switching weather forecasts between Celsius and Fahrenheit.
- Reading oven temperatures from international recipes.
- Converting lab, HVAC, or device temperature settings.
The formula: K = °C + 273.15
Practical example: For example, -273.15 c equals 0 k.
Free Online Conversion Steps
Step 1: enter your C value. Step 2: read the K result.
This online converter is free. It shows the answer, formula, and common values.
Unit Conversion Formula
K = °C + 273.15.
Keep extra digits while you calculate. Round only your final answer.
Unit Type and Name
C and K are units in the temperature category.
Use the full converter name when you need a clear source: Celsius to Kelvin Converter.
HTTPS Privacy Note
UnitKick loads over HTTPS. The conversion runs in your browser. Your value is not sent to a login form.
Accuracy and Rounding Notes
Temperature conversions use offset formulas, not simple multiplication. Celsius, Fahrenheit, and Kelvin each have a different zero point.
For ovens and weather, whole-number results are usually enough. For science or equipment calibration, keep more decimals.
Measurement Standards
UnitKick checks key formulas against public measurement sources. NIST provides guidance in the United States. BIPM maintains the SI unit reference.