1° Celsius to Kelvin

1°C = 274.15 K

Formula: K = C + 273.15

Celsius to Kelvin Converter

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How cold is 1°C?

1°C is at or near the freezing point of water — a winter coat and warm layers are needed.

What does 1°C look like?

At or near the freezing point of water — a winter coat and warm layers are needed
1°C is at or near the freezing point of water — a winter coat and warm layers are needed.

1°C on the Kelvin scale

°C05101520K275.0280.0285.0290.0

1°C = 274.2 K

How to Convert Celsius to Kelvin

The formula is:

K = C + 273.15

Example: 1° Celsius = 274.15° Kelvin

exact This conversion factor is exact by international definition.

About these units

Celsius: The degree Celsius (°C) is the SI-derived unit of temperature. It is defined so that 0 °C = 273.15 K exactly, with the same unit increment as the kelvin.

Kelvin: The kelvin (K) is the SI base unit of thermodynamic temperature. Since the 2019 SI redefinition, it is defined by fixing the Boltzmann constant at exactly 1.380 649 × 10⁻²³ J/K. Named aft...

Frequently Asked Questions

What is 1°C in Kelvin?

1°C equals 274.15K. The formula is: K = C + 273.15.

What does 1 Celsius look like in Kelvin?

1°C (274.15K) is cold — near freezing, heavy clothing needed.

How do you calculate 1°C to Kelvin?

Use the formula: K = C + 273.15. Applying it: 1°C = 274.15K.

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1 Celsius = 274.15 Kelvin
1 Celsius = 274.15 Kelvin — conversion chart

Nearby Conversions

2 degrees Celsius275.2 Kelvin 3 degrees Celsius276.2 Kelvin 4 degrees Celsius277.2 Kelvin 5 degrees Celsius278.2 Kelvin 6 degrees Celsius279.2 Kelvin 7 degrees Celsius280.2 Kelvin 8 degrees Celsius281.2 Kelvin 9 degrees Celsius282.2 Kelvin 10 degrees Celsius283.2 Kelvin 11 degrees Celsius284.2 Kelvin

Temperature conversion chart

To Fahrenheit To Celsius To Kelvin
From Fahrenheit (F) F (F - 32) × 5/9 (F - 32) × 5/9 + 273.15
From Celsius (C or o) (C × 9/5) + 32 C C + 273.15
From Kelvin (K) (K - 273.15) × 9/5 + 32 K - 273.15 K

For general conversions between Celsius and Kelvin, see the Celsius to Kelvin converter.

Also convert Degrees Celsius to:

All unit conversions on CoolConversion use conversion factors defined or documented by internationally recognised standards bodies (such as ISO and NIST), including both SI and non-SI units.

Conversion factors verified against NIST, BIPM, ITS-90 (International Temperature Scale) Defined by the absolute thermodynamic scale (Kelvin). Last reviewed: March 2026
Adilson Fernandes By Adilson Fernandes
Tiago Fernandes Reviewed by Tiago Fernandes