Temperature Converter

Convert between Celsius, Fahrenheit, and Kelvin temperature scales.

From

Common Temperature Conversions

Celsius (°C)	Fahrenheit (°F)	Kelvin (K)	Description
-273.15	-459.67	0	Absolute Zero
-40	-40	233.15	Same value
0	32	273.15	Water freezing point
20	68	293.15	Room temperature
37	98.6	310.15	Human body temperature
100	212	373.15	Water boiling point

About Temperature Scales

Celsius (°C)

The Celsius scale is used by most countries worldwide. It's part of the metric system and is based on the freezing (0°C) and boiling (100°C) points of water at standard atmospheric pressure.

Fahrenheit (°F)

The Fahrenheit scale is primarily used in the United States. Water freezes at 32°F and boils at 212°F. The scale was proposed by physicist Daniel Gabriel Fahrenheit in 1724.

Kelvin (K)

Kelvin is the SI base unit of temperature. It's used primarily in scientific contexts. The Kelvin scale starts at absolute zero (0 K = -273.15°C), the theoretical lowest possible temperature. Note that Kelvin doesn't use the degree symbol (°).

Conversion Formulas

°C = (°F - 32) × 5/9
°F = (°C × 9/5) + 32
K = °C + 273.15
°C = K - 273.15

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