18°F in Celsius = -7.78°C
-7.78°C
18 Fahrenheit is exactly equal to -7.78 degrees C.
Need to convert a different value?
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(18 - 32) × 5/9 = -7.78
To convert Fahrenheit to Celsius, apply this formula to any value.
Nearby Values
| Fahrenheit (°F) | Celsius (°C) |
|---|---|
| 13 °F | -10.56 °C |
| 14 °F | -10 °C |
| 15 °F | -9.44 °C |
| 16 °F | -8.89 °C |
| 17 °F | -8.33 °C |
| 18 °F | -7.78 °C |
| 19 °F | -7.22 °C |
| 20 °F | -6.67 °C |
| 21 °F | -6.11 °C |
| 22 °F | -5.56 °C |
| 23 °F | -5 °C |
Convert Any Value
Need to convert a different Fahrenheit value? Use our full interactive converter:
Open Temperature ConverterFrequently Asked Questions
What is 18 Fahrenheit in Celsius?
18 Fahrenheit is equal to -7.78 degrees C. The formula used is: (18 - 32) × 5/9 = -7.78.
How do you convert Fahrenheit to Celsius?
To convert Fahrenheit to Celsius, use the formula: (18 - 32) × 5/9 = -7.78. You can also use our interactive converter tool for any value.