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Temperature converter

This temperature converter turns Celsius into Fahrenheit and Kelvin and back. Enter a value, choose the scale, and the other scales update instantly.

Use it for oven settings from foreign recipes, weather forecasts in another scale and physics homework.

Result

356 degree Fahrenheit (°F)

Formula: 180 degree Celsius (°C) × 1.8 + 32 ≈ 356 degree Fahrenheit (°F)

In every unit

UnitValue
degree Celsius (°C)180
degree Fahrenheit (°F)356
kelvin (K)453.15

Temperature conversion formulas

  • Celsius to Fahrenheit: °F = °C × 1.8 + 32. For example, 30 °C × 1.8 + 32 = 86 °F.
  • Fahrenheit to Celsius: °C = (°F − 32) ÷ 1.8. For example, (100 − 32) ÷ 1.8 ≈ 37.8 °C.
  • Celsius to Kelvin: K = °C + 273.15.
  • Kelvin to Celsius: °C = K − 273.15.

Common temperatures

CelsiusFahrenheitWhat it is
−40 °C−40 °Fthe only point where both scales meet
0 °C32 °Fwater freezes
20 °C68 °Froom temperature
37 °C98.6 °Fbody temperature
100 °C212 °Fwater boils
180 °C356 °Fmoderate oven
200 °C392 °Fbaking
220 °C428 °Fhot oven

How the scales differ

Celsius is anchored to water: 0 degrees at freezing and 100 at boiling under normal pressure. Fahrenheit splits the same span into 180 parts, so one Fahrenheit degree is smaller.

Kelvin is an absolute scale: zero sits at the lowest possible temperature, −273.15 °C. A kelvin is the same size as a Celsius degree, so converting is only a 273.15 shift.

Mental shortcuts

  • Celsius to Fahrenheit, roughly: double it and add 30. 20 °C gives 70 °F instead of the exact 68 °F.
  • Fahrenheit to Celsius, roughly: subtract 30 and halve it. 70 °F gives 20 °C instead of 21.1 °C.
  • For cooking and medical readings use the exact formula — a two-degree error already matters there.

Frequently asked questions

How do I convert Celsius to Fahrenheit?

Multiply by 1.8 and add 32. For example, 25 °C = 25 × 1.8 + 32 = 77 °F.

How do I convert Fahrenheit to Celsius?

Subtract 32 and divide by 1.8. For example, 98.6 °F = (98.6 − 32) ÷ 1.8 = 37 °C.

What is 180 degrees Celsius in Fahrenheit?

180 °C equals 356 °F, a standard baking temperature.

What is 0 degrees Celsius in Kelvin?

0 °C equals 273.15 K.

Where do Celsius and Fahrenheit read the same?

Only at −40 degrees: −40 °C = −40 °F.

Updated: 2026-08-09