MiniCalci

Calculators & Converters

Unit Conversion

Temperature Converter

Free temperature converter between Fahrenheit, Celsius, and Kelvin. Instantly convert Fahrenheit to Celsius, Celsius to Kelvin, and check body temperature conversions.

The temperature value you want to convert

What is 72°F in Celsius (or a fever in Fahrenheit)?

US weather, ovens, and body-temp talk is Fahrenheit. This converter is for air and body numbers. Oven recipes with gas mark belong on oven temperature so you do not bake a cake at “gas mark 4” mapped like a fever.

Formulas

°C = (°F − 32) × 5/9

°F = °C × 9/5 + 32

K = °C + 273.15

FCContext
320Water freezes
7222Typical indoor setpoint talk
98.637Classic “normal” oral (real normals vary)
212100Water boils at sea level

Frequently Asked Questions

How do I convert Fahrenheit to Celsius?
Subtract 32 from the Fahrenheit value, then multiply by 5/9. The formula is C = (F − 32) × 5/9. For example, 98.6°F becomes (98.6 − 32) × 5/9 = 37°C.
What is 0 Celsius in Fahrenheit?
0°C equals 32°F. This is the freezing point of water. Using the formula F = C × 9/5 + 32: 0 × 9/5 + 32 = 32°F.
What is the Celsius to Kelvin formula?
Add 273.15 to the Celsius value: K = C + 273.15. For example, 25°C equals 25 + 273.15 = 298.15 K. To go the other way, subtract 273.15 from Kelvin to get Celsius.
How do I convert body temperature from Fahrenheit to Celsius?
Normal human body temperature is about 98.6°F, which converts to 37°C using the formula C = (F − 32) × 5/9. A fever is generally considered to start around 100.4°F (38°C) or higher.
Why does Kelvin not use the degree symbol?
Kelvin is an absolute temperature scale used in science, where 0 K represents absolute zero — the theoretical point where all molecular motion stops. Because it's an absolute scale (not based on a reference point like water freezing), it's written as '300 K', not '300°K'.
Is this the same as the oven temperature converter?
No — this general-purpose temperature converter handles everyday conversions between Fahrenheit, Celsius, and Kelvin. For converting recipe oven temperatures specifically, including gas mark settings used in UK recipes, use our dedicated oven temperature converter instead.
What is absolute zero in Fahrenheit and Celsius?
Absolute zero is 0 K, which equals −273.15°C and −459.67°F. It's the coldest theoretically possible temperature, where particles have minimal thermal motion.
How accurate is this temperature converter?
The converter uses the exact, internationally standardized conversion formulas (C = (F−32)×5/9 and K = C+273.15), so results are mathematically precise to the decimal places shown. It's suitable for everyday, scientific, cooking, and weather-related conversions.
About these results: Figures are for planning only. Confirm anything you will buy, bill, or submit (materials, payroll, medical screening) against the label, a quote, or a professional.