Temperature converter

Celsius, Fahrenheit, Kelvin and Rankine.

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Temperature converter

Instant conversion

Edit either value. Decimals and scientific notation supported.

From value

°C

From unit

To value

°F

To unit

CONVERSION

1 °C ≈ 33.8 °F

Display precision

Precision changes displayed rounding, not calculation accuracy.

FORMULA°F = (°C × 9/5) + 32

UNDERSTAND THE UNITS

Converting temperature

Temperature scales use offsets as well as scale factors. Celsius to Fahrenheit is °F = °C × 9/5 + 32. Kelvin starts at absolute zero.

How the calculation works

Convert the starting scale to Kelvin, then convert Kelvin to the destination scale. Offsets are applied before the final division. For example, 0 °C = 32 °F = 273.15 K.

Precision and rounding

Choose 6, 10 or 15 significant figures for the displayed result. Calculations use unrounded JavaScript numbers. The ≈ symbol indicates that displayed results may be rounded; significant figures are display precision, not measurement accuracy.

Quick reference

Fixed reference · Celsius to Fahrenheit

This table uses the default pair, independently of your selections above.

Celsius (°C)	Fahrenheit (°F)
0	32
1	33.8
5	41
10	50
25	77
50	122
100	212
1000	1832

Rounded to 10 significant figures.

PAIR DIRECTORY

All temperature conversion pairs

From Celsius (°C)

From Fahrenheit (°F)

From Kelvin (K)

From Rankine (°R)

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Temperature converter