How to Convert Fahrenheit to Celsius
Our free Fahrenheit to Celsius converter lets you instantly convert temperatures in both directions — no sign-up, no downloads, and 100% private since everything runs in your browser. Whether you're checking a US weather forecast while traveling abroad, reading an American recipe (350°F = 176.7°C), checking your child's temperature in Celsius, or working on a science experiment, this tool gives you instant accurate results.
Why Use UtilDaily's Fahrenheit to Celsius Converter?
Our Fahrenheit to Celsius converter is designed for accuracy and ease of use. Whether you're traveling abroad, cooking with American recipes, or comparing temperature readings across measurement systems, you'll find everything you need in one place.
- Instant bidirectional conversion between °F and °C — type in either field and the other updates automatically
- Common reference tables for body temperature, weather, cooking, and freezing/boiling points
- Bonus scientific conversions to Kelvin and Rankine for STEM applications
- 100% private and free — everything runs in your browser with no data sent to any server, no sign-up, and no limits
- Click-to-load common values in the reference table — body temp, room temp, oven temps, and more
Frequently Asked Questions
What is the formula to convert Fahrenheit to Celsius?
To convert Fahrenheit to Celsius, subtract 32 and multiply by 5/9 (or divide by 1.8). The formula is: °C = (°F − 32) × 5/9. For example: (98.6°F − 32) × 5/9 = 66.6 × 5/9 = 37°C. To convert Celsius to Fahrenheit, multiply by 9/5 and add 32: °F = (°C × 9/5) + 32.
What is 98.6°F in Celsius?
98.6°F equals 37°C. This is the normal human body temperature. The conversion: (98.6 − 32) × 5/9 = 66.6 × 5/9 = 37°C.
What is 100°F in Celsius?
100°F equals approximately 37.78°C. This is a typical hot summer day in many climates. The conversion: (100 − 32) × 5/9 = 68 × 5/9 = 37.78°C.
What is 32°F in Celsius?
32°F equals exactly 0°C. This is the freezing point of water at sea level. The conversion: (32 − 32) × 5/9 = 0 × 5/9 = 0°C.
What is body temperature in Fahrenheit and Celsius?
Normal human body temperature is 98.6°F or 37°C. A fever is typically defined as 100.4°F (38°C) or higher. Hypothermia begins below 95°F (35°C).
At what temperature are Fahrenheit and Celsius equal?
Fahrenheit and Celsius are equal at −40°. That is, −40°F = −40°C. This is the only point where the two scales have the same numerical value, and it's a useful trick to remember for mental conversions.
What is 350°F in Celsius (oven temperature)?
350°F equals approximately 176.7°C. This is a common baking temperature in US recipes. Common equivalents: 300°F = 148.9°C, 325°F = 162.8°C, 375°F = 190.6°C, 400°F = 204.4°C, 425°F = 218.3°C, 450°F = 232.2°C.
Why does the US use Fahrenheit instead of Celsius?
The United States adopted the Fahrenheit scale (developed by Daniel Gabriel Fahrenheit in 1724) before the Celsius scale was widely established. The US customary units system has historically been slow to change, similar to why the US still uses miles, feet, and pounds for everyday measurements. Three countries today still use Fahrenheit as the primary scale: the United States, the Bahamas, and the Cayman Islands.
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