Fahrenheit to Celsius Converter

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Frequently Asked Questions

How do I convert Fahrenheit to Celsius?

To convert Fahrenheit to Celsius, subtract 32 then multiply by 5/9. Formula: °C = (°F - 32) × 5/9. For example, 212°F: (212 - 32) × 5/9 = 180 × 5/9 = 100°C.

What is the formula for Fahrenheit to Celsius?

°C = (°F - 32) × 5/9. This formula converts a temperature from Fahrenheit to Celsius. Subtract 32 from the Fahrenheit temperature, then multiply by 5/9 (approximately 0.5556).

What is 32°F in Celsius?

32°F = 0°C. This is the freezing point of water at standard atmospheric pressure. The conversion: (32 - 32) × 5/9 = 0 × 5/9 = 0°C.

What is 212°F in Celsius?

212°F = 100°C. This is the boiling point of water at standard atmospheric pressure. The conversion: (212 - 32) × 5/9 = 180 × 5/9 = 100°C.

What is 98.6°F in Celsius?

98.6°F = 37°C. This is the average normal human body temperature. The conversion: (98.6 - 32) × 5/9 = 66.6 × 5/9 = 37°C.

What temperature equals in both scales?

-40°F = -40°C. This is the unique point where Fahrenheit and Celsius read the same value. The formula to verify: (-40 - 32) × 5/9 = -72 × 5/9 = -40°C.

How do I quickly estimate Fahrenheit to Celsius?

Subtract 30 then divide by 2. For example, 70°F: (70 - 30) / 2 = 20°C (actual: 21.1°C). This gives an approximate answer good for weather temperatures.

What is 100°F in Celsius?

100°F = 37.78°C. This is a hot temperature, typical of a heat wave. Conversion: (100 - 32) × 5/9 = 68 × 5/9 = 37.78°C.

What is 0°F in Celsius?

0°F = -17.78°C. This is very cold, below freezing. Conversion: (0 - 32) × 5/9 = -32 × 5/9 = -17.78°C. 0°F was originally based on a brine freezing point.

How do I convert Fahrenheit to Celsius in my head?

Subtract 32, multiply by 5, divide by 9. Quick version: subtract 30, divide by 2 (approximate). Example for 86°F: (86-30)/2 = 28°C (actual: 30°C). More accurate: subtract 32 then halve.

What is the difference between Fahrenheit and Celsius?

Fahrenheit has 180 degrees between freezing (32°F) and boiling (212°F) of water. Celsius has 100 degrees (0°C to 100°C). One degree Fahrenheit equals 5/9 (0.556) degree Celsius.

What countries use Fahrenheit?

Fahrenheit is primarily used in the United States, its territories (Puerto Rico, Guam), and a few other countries like the Bahamas, Belize, the Cayman Islands, and Palau. All other countries use Celsius.

Why does the US still use Fahrenheit?

The US continues to use Fahrenheit due to historical precedent, established infrastructure, and cultural familiarity. Fahrenheit is more granular for weather temperatures (smaller degrees) and corresponds better to human perception in the 0-100°F range.

How do I convert baking temperatures from F to C?

Oven conversions: 300°F = 150°C (slow), 325°F = 160°C, 350°F = 180°C (moderate), 375°F = 190°C, 400°F = 200°C (hot), 425°F = 220°C, 450°F = 230°C (very hot).

What is 72°F in Celsius?

72°F = 22.22°C. This is considered comfortable room temperature. Conversion: (72 - 32) × 5/9 = 40 × 5/9 = 22.22°C.

What is 50°F in Celsius?

50°F = 10°C. This is a cool temperature, typical of early spring. Conversion: (50 - 32) × 5/9 = 18 × 5/9 = 10°C.

How do I convert weather temperatures from F to C?

Weather conversions: 32°F = 0°C (freezing), 50°F = 10°C (cool), 60°F = 15.6°C (mild), 70°F = 21.1°C (warm), 80°F = 26.7°C (hot), 90°F = 32.2°C (very hot), 100°F = 37.8°C (extreme).

What is 350°F in Celsius?

350°F = 176.67°C (rounded to 180°C in recipes). This is a common baking temperature. Conversion: (350 - 32) × 5/9 = 318 × 5/9 = 176.67°C. Recipes often round to 180°C.

How do I convert Fahrenheit to Celsius in Excel?

Use =(A1-32)*5/9 to convert Fahrenheit (in A1) to Celsius. Or use =CONVERT(A1,"F","C"). For reverse: =A1*9/5+32 or =CONVERT(A1,"C","F").

What is body temperature in Celsius?

Normal body temperature: 98.6°F = 37°C. Low fever: 100.4°F = 38°C. High fever: 104°F = 40°C. Hypothermia below: 95°F = 35°C. Note: individual normal temperatures vary slightly.

What is 400°F in Celsius?

400°F = 204.44°C. This is a hot oven temperature, good for roasting. Conversion: (400 - 32) × 5/9 = 368 × 5/9 = 204.44°C. On some ovens, this is Gas Mark 6.

How do I convert F to C for fever detection?

Fever ranges: 99-100.9°F = 37.2-38.3°C (low-grade), 101-103°F = 38.3-39.4°C (moderate), 104°F+ = 40°C+ (high fever). Ear, forehead, oral, and rectal thermometers may give slightly different readings.

What is the freezing point of water in Fahrenheit?

The freezing point of water at standard sea-level pressure is 32°F (0°C). Salt lowers the freezing point, which is why salted water can stay liquid below 32°F.

What is the boiling point of water in Fahrenheit?

Water boils at 212°F (100°C) at sea level. At higher altitudes, the boiling point decreases: about 1°F less per 500 feet elevation. At 5000 feet, water boils at approximately 203°F (95°C).

What is 75°F in Celsius?

75°F = 23.89°C. This is considered a very comfortable room temperature. Conversion: (75 - 32) × 5/9 = 43 × 5/9 = 23.89°C. Many people find 72-75°F ideal for indoor comfort.

What is 200°F in Celsius?

200°F = 93.33°C. This is below boiling but hot enough for slow cooking. Conversion: (200 - 32) × 5/9 = 168 × 5/9 = 93.33°C. In cooking, this is a low oven or slow cooker temperature.

How do I convert F to C for scientific work?

Scientific conversions use the exact formula and appropriate significant figures. For precision, use Kelvin: K = (°F + 459.67) × 5/9. Scientific temperature measurements often use Celsius or Kelvin directly.

What is the history of the Fahrenheit scale?

Daniel Fahrenheit introduced his scale in 1724 with three fixed points: 0°F (brine freezing), 32°F (water freezing), and 96°F (body temperature, later adjusted to 98.6°F). The scale was widely adopted in English-speaking countries.

What is 80°F in Celsius?

80°F = 26.67°C. This is a warm summer temperature. Conversion: (80 - 32) × 5/9 = 48 × 5/9 = 26.67°C. This is considered hot in many temperate climates.

What is 95°F in Celsius?

95°F = 35.00°C. This is a very hot temperature, approaching human body temperature. Conversion: (95 - 32) × 5/9 = 63 × 5/9 = 35°C. Heat advisories are often issued at these temperatures.

What is the relationship between F and C scales?

The scales relate linearly: °C = (°F - 32) × 5/9. Each °F change equals 5/9 °C change. The scales intersect at -40°. The Celsius scale is part of the SI system; Fahrenheit is not.

How do I read a dual-scale thermometer?

Many digital and analog thermometers show both °F and °C. The Fahrenheit scale is usually on the left or outer ring, Celsius on the right or inner ring. Digital thermometers often have a button to switch between modes.