Calculator Scope

Calculator Scope - Smart Online Calculators for Everything

From math, science, finance, health, and construction to marketing, text tools, developer utilities, and more. All calculators in one fast, accurate, easy-to-use platform.

Fahrenheit to Celsius Calculator

Fahrenheit to Celsius Calculator

Advertisement 1
Advertisement 2
This calculator converts a Fahrenheit temperature into Celsius, e.g. 68°F = 20°C.

Enter a temperature in Fahrenheit to instantly see its Celsius equivalent — useful for cooking, weather, or reading international temperature scales.

The formula subtracts 32 before scaling by 5/9, which reflects the two real differences between the scales: Fahrenheit and Celsius don't share the same zero point, and their degree "sizes" aren't equal either — a genuinely useful set of reference points to keep in mind are that 32°F (freezing) equals 0°C, human body temperature at 98.6°F equals 37°C, and boiling water at 212°F equals 100°C. Most of the world outside the United States uses Celsius for everyday weather and cooking, which is exactly why this conversion comes up constantly for travelers, recipe conversions, and international communication.

Advertisement 3
  • Formula: °C = (°F − 32) × 5/9.
  • Example: (68 − 32) × 5/9 = 20°C.
  • Reference points: 32°F = 0°C (freezing), 98.6°F = 37°C (body temperature), 212°F = 100°C (boiling).

What is 0°F in Celsius?

(0 − 32) × 5/9 = -17.78°C.

What is room temperature in Celsius?

A common "room temperature" of 70°F converts to about 21.1°C.