Convert between length, weight, temperature, volume, speed, area, and digital units.
How to Convert Fahrenheit to Celsius
Subtract 32 from the Fahrenheit temperature, then multiply by 5/9. The formula is: C = (F - 32) x 5/9.
Fahrenheit to Celsius Conversion Table
| Fahrenheit | Celsius |
|---|---|
| -40 | -40 |
| 0 | -17.78 |
| 32 | 0 |
| 50 | 10 |
| 68 | 20 |
| 72 | 22.22 |
| 98.6 | 37 |
| 100 | 37.78 |
| 212 | 100 |
| 350 | 176.67 |
Common Use Cases
Americans traveling abroad encounter weather reports, thermostat settings, and pool temperatures in Celsius. Understanding that a pleasant 72 degrees Fahrenheit room temperature is about 22 degrees Celsius helps adjust hotel thermostats without repeated trial-and-error. Similarly, a pool advertised as 28 degrees Celsius (about 82 degrees F) helps decide whether to pack a swimsuit.
Science students in the US learn that laboratory protocols, chemical data sheets, and scientific literature report temperatures exclusively in Celsius (or Kelvin). Converting a reaction temperature of 350 degrees F to about 177 degrees C is necessary for following published procedures correctly, and errors in temperature conversion can ruin experiments or create safety hazards.
Homebrewers and winemakers who follow American recipes in Fahrenheit but use metric thermometers need precise conversions during critical steps. Mashing grain at 152 degrees F (about 66.7 degrees C) versus 148 degrees F (64.4 degrees C) produces measurably different sugar profiles in beer, and even a two-degree Celsius error can change the body and flavor of the final product.