101°F to Celsius

38.3°C

101°F = 38.3°C = 311.48 K

Working: (101 − 32) × 5/9 = 38.3

101 degrees Fahrenheit converts to 38.3 degrees Celsius. A reading of 101°F is a fever in adults; medical guidance generally treats 100.4°F (38°C) and above as a fever.

To convert Fahrenheit to Celsius, subtract 32 first, then multiply by 5/9. For 101°F: 101 − 32 = 69, and 69 × 5/9 = 38.3. The subtraction comes first because the two scales have different zero points — water freezes at 0°C but at 32°F.

A quick mental estimate is to subtract 30 and halve the result, which gives about 35.5°C — 2.8 degrees off the exact 38.3°C. That is close enough to judge the weather, though it drifts badly at oven temperatures.

One hundred and one is a clear fever reading in adults, sitting well above the 100.4°F threshold. It converts to 38.3°C. Fever guidance is written in whole Fahrenheit degrees in the US and whole Celsius degrees elsewhere, so the two sets of advice step at different points rather than translating cleanly.

Nearby temperatures

Fahrenheit	Celsius
68°F	20°C
72°F	22.2°C
80°F	26.7°C
90°F	32.2°C
98°F	36.7°C
100°F	37.8°C
103°F	39.4°C
105°F	40.6°C

Try another value

From

°C

77°F

All scales

Celsius (°C)25 °C

Fahrenheit (°F)77 °F

Kelvin (K)298.15 K

Frequently asked questions

What is 101 degrees Fahrenheit in Celsius?

101°F is 38.3°C. Subtract 32 from 101 to get 69, then multiply by 5/9 to get 38.3.

What is the formula for Fahrenheit to Celsius?

°C = (°F − 32) × 5/9. Subtract 32 from the Fahrenheit temperature, then multiply the result by 5/9 (about 0.5556).

For any other value, use the full Temperature Converter on BrainVert.