celsius to kelvin converter

Convert Celsius (°C) to Kelvin (K) for school, work, travel or projects. Enter any finite value, reverse the units, copy the result and keep the calculation on your device.

🔒 100% private — files never leave your browser

Value

From

Result

—

Formula

K = °C + 273.15

The converter uses the defined base unit for Temperature; temperature pairs use an offset formula. Values are rounded only for display.

Worked example

For example, 5 °C = 278.15 K. Try another value above to calculate it locally.

Common values

1 °C = 274.15 K

5 °C = 278.15 K

10 °C = 283.15 K

20 °C = 293.15 K

50 °C = 323.15 K

100 °C = 373.15 K

kelvin to celsius converter →

How to use the celsius to kelvin

1 Enter a value in Celsius (°C).
2 Check the Celsius (°C) to Kelvin (K) formula and common values table.
3 Copy the result or swap the units for the reverse conversion.

Frequently asked questions

What does the celsius to kelvin converter calculate?

Celsius (°C) values are converted to Kelvin (K) using the selected unit definition. Temperature uses its offset formula rather than a simple multiplication.

Does this converter upload my value?

No. The calculation runs locally in your browser, and the value is not sent to a server.

Can I convert the result back?

Yes. Use the reverse conversion link or swap the units in the converter.

kelvin to celsius Convert Kelvin (K) to Celsius (°C) with a precise browser calculator. See the formula, examples and a common values table locally. Unit Converter Convert between metric and imperial units: length, weight, temperature, speed, area, volume, data size and time. Instant and precise — in your browser. Age Calculator Calculate your exact age in years, months, days — even hours, minutes and seconds. Next-birthday countdown included. Free, instant, private. Percentage Calculator Three percentage calculators in one: X% of a number, one number as a percent of another, and percentage increase or decrease. Instant, client-side. GPA Calculator Calculate your semester or cumulative GPA on the 4.0 scale. Letter or percentage grades, weighted by credits — instant and private. Reading Time Calculator Convert word counts into reading and speaking time. Adjustable speed, sentences and paragraphs included — instant and private.