-10 Fahrenheit to Celsius
-10 °F ≈ -23.33 °C
-10 degrees Fahrenheit is approximately -23.33 degrees Celsius.
How to convert -10 °F to °C
Use the formula °C = (°F − 32) × 5/9:
°C = (-10 − 32) × 5/9°C = -42 × 5/9°C = -23.333333
So -10 °F = -23.333333 °C, or about -23.33 °C rounded.
Rounded values and quick estimate
- Rounded to a whole number: -23 °C
- Rounded to one decimal place: -23.3 °C
Quick mental estimate: subtract 30 and halve it. For -10 °F that gives about -20 °C — off by 3.33 °C (14.3%). Use the exact formula when precision matters.
-10 Fahrenheit in other units
-23.33 °C is very cold weather, well below the freezing point of water. It is typical of a hard winter in northern climates; warm layers, gloves and a hat are essential outdoors.
- Celsius
- -23.33 °C
- Degrees Réaumur
- -18.67 °Ré
- Degrees Delisle
- 185 °De
- Degrees Newton
- -7.7 °N
- Degrees Rømer
- -4.75 °Rø
- Kelvin
- 249.82 K
- Rankine
- 449.67 °R
-10 °F and nearby values
About fahrenheit and celsius
The Fahrenheit scale puts water’s freezing point at 32 °F and boiling point at 212 °F. It is the everyday temperature scale in the United States.
The Celsius scale sets the freezing point of water at 0 °C and its boiling point at 100 °C (at sea level). It is used for everyday temperatures in almost every country.
Related conversions
Frequently asked questions
What is -10 Fahrenheit in Celsius?
-10 degrees Fahrenheit is about -23.33 degrees Celsius (-10 °F ≈ -23.33 °C).
How do you convert -10 °F to °C?
Apply °C = (°F − 32) × 5/9: °C = (-10 − 32) × 5/9, °C = -42 × 5/9, °C = -23.333333.
How many degrees Fahrenheit is -23.33 °C?
-23.33 °C is about -9.99 degrees Fahrenheit.