Fahrenheit to Celsius Converter

Convert fahrenheit to celsius instantly with our free online °F to °C converter. Enter any temperature in fahrenheit and see the exact equivalent in celsius immediately.

FROM10°FFahrenheit=TO-1.22e+1°CCelsius
fahrenheit to celsius showing 10 °F equals -1.22e+1 °C
°F
°C
Quick Values

How to Use This Fahrenheit to Celsius Converter

  1. 1Enter the temperature in fahrenheit (°F) in the input field above.
  2. 2The converter automatically calculates the exact temperature in celsius (°C).
  3. 3Use the swap button to switch between fahrenheit to celsius and celsius to fahrenheit.
  4. 4Check the common temperatures table for weather, cooking, and body temperature reference.

Fahrenheit to Celsius Formula

To convert fahrenheit to celsius, subtract 32 from the temperature in fahrenheit, then multiply by 5/9. The formula is: °C = (°F − 32) × 5/9. This reverses the celsius-to-fahrenheit conversion by first removing the 32-degree offset, then scaling by the ratio of the degree sizes.

For example, to convert 98.6°F to celsius: (98.6 − 32) × 5/9 = 66.6 × 5/9 = 37°C. To convert 32°F to celsius: (32 − 32) × 5/9 = 0°C.

Relative Size Comparison1 °F1.00 °C°F°C00.25x0.5x0.75x1
Scale diagram showing the relative size of °F compared to °C for fahrenheit to celsius

Common Fahrenheit to Celsius Conversions

Fahrenheit (°F)Celsius (°C)
-4.00e+1-4.00e+1
-2.00e+1-2.89e+1
-1.00e+1-2.33e+1
0.00e+0-1.78e+1
10-1.22e+1
20-6.70e+0
320.00e+0
404.4
5010
6015.6
7021.1
8026.7
9032.2
98.637
10037.8
15065.6
20093.3
250121.1
300148.9
350176.7

About Fahrenheit and Celsius

Fahrenheit is a temperature scale proposed by Daniel Gabriel Fahrenheit in 1724. It is primarily used in the United States, Belize, the Cayman Islands, and a few other territories. On this scale, water freezes at 32°F and boils at 212°F under standard conditions. Celsius, developed by Anders Celsius in 1742, is used worldwide in scientific contexts and by most countries for everyday temperature measurements. Converting fahrenheit to celsius is necessary for Americans traveling abroad, scientists collaborating internationally, home cooks using European recipes, and anyone reading global weather reports. Our fahrenheit to celsius converter provides exact conversions for any temperature value.

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Frequently Asked Questions About Fahrenheit to Celsius

The formula is: °C = (°F − 32) × 5/9. Subtract 32 from fahrenheit, then multiply the result by 5/9.
32°F equals exactly 0°C. This is the freezing point of water and one of the defining temperatures of both scales.
212°F equals exactly 100°C. This is the boiling point of water at standard atmospheric pressure.
98.6°F equals exactly 37°C. This is the commonly cited normal human body temperature.
Subtract 30 from fahrenheit, then divide by 2. For example, 70°F − 30 = 40, divided by 2 = 20°C (actual is 21.1°C). This gives a quick rough estimate.
The United States continues using fahrenheit primarily due to historical precedent and the cost of converting infrastructure, weather reporting, and public familiarity to the celsius scale.