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Celsius to Kelvin

Convert °C to K — free online temperature converter

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K = °C + 273.15

Celsius to Kelvin Quick Reference

°CK

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How to Convert Celsius to Kelvin

This free online converter lets you instantly convert Celsius (°C) to Kelvin (K). Simply enter a value and the result updates automatically. Use the swap button to reverse the conversion.

The quick reference table below shows common Celsius values and their Kelvin equivalents. All calculations are performed locally in your browser — fast, private, and accurate.

FAQ
How do I convert Celsius to Kelvin?
Use the formula: K = °C + 273.15. Enter the Celsius value and the converter calculates the Kelvin result instantly.
Is the conversion accurate?
Yes. Temperature conversions use exact mathematical formulas, so results are precise to multiple decimal places.
Can I convert in reverse?
Yes. Use the swap button to switch between Celsius and Kelvin, or visit the Kelvin to Celsius converter.
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