68°F to Celsius

20°C

68°F = 20°C = 293.15 K

Working: (68 − 32) × 5/9 = 20

68 degrees Fahrenheit converts to 20 degrees Celsius.

To convert Fahrenheit to Celsius, subtract 32 first, then multiply by 5/9. For 68°F: 68 − 32 = 36, and 36 × 5/9 = 20. 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 19°C — 1 degrees off the exact 20°C. That is close enough to judge the weather, though it drifts badly at oven temperatures.

Sixty-eight Fahrenheit is exactly 20°C, which makes it the standard 'room temperature' in both systems at once — a rare agreement. American thermostat guidance and European laboratory references land on the same physical temperature by different routes, which is why 68°F appears so often in energy-saving advice.

Nearby temperatures

Fahrenheit	Celsius
40°F	4.4°C
50°F	10°C
60°F	15.6°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

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 68 degrees Fahrenheit in Celsius?

68°F is 20°C. Subtract 32 from 68 to get 36, then multiply by 5/9 to get 20.

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.