-40 °C to °F
-40 °C = -40 °F
How to convert -40 °C to °F
Formula: °F = °C × 9/5 + 32
-40 °C × 9/5 + 32 = -72 + 32 = -40 °F
−40 is the only temperature where Celsius and Fahrenheit read the same.
-40 °C in other units
- -40 °C = -40 °F
- -40 °C = 233.15 K (kelvin)
Convert another value
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Nearby values
| Celsius (°C) | Fahrenheit (°F) |
|---|---|
| -40 °C | -40 °F |
| -30 °C | -22 °F |
| -20 °C | -4 °F |
| -18 °C | -0.4 °F |
| -10 °C | 14 °F |
| -5 °C | 23 °F |
| 0 °C | 32 °F |
| 5 °C | 41 °F |
| 10 °C | 50 °F |
| 15 °C | 59 °F |
| 16 °C | 60.8 °F |
Full Celsius to Fahrenheit converter and chart → · Convert the other way: Fahrenheit to Celsius →
Frequently asked questions
What is -40 °C in Fahrenheit?
-40 °C = -40 °F. Formula: -40 °C × 9/5 + 32 = -72 + 32 = -40 °F.
How do I convert Celsius to Fahrenheit?
Use °F = °C × 9/5 + 32. You can type any value into the converter on this page to get the exact result.
Is -40 °C a notable value?
−40 is the only temperature where Celsius and Fahrenheit read the same.