The conversion
55°C = 131°F
°F = (°C × 9/5) + 32, so (55 × 9/5) + 32 = 131.
As an outdoor air temperature, 55 °C sits in the hot band. The other scale is on the dial beside it in the app, so a reading like this needs no conversion at all.
Convert something else
68°F
The range either side
Neighbouring values, for when the number you actually wanted was a degree or two away.
| Celsius | Fahrenheit |
|---|---|
| 50 °C | 122 °F |
| 51 °C | 123.8 °F |
| 52 °C | 125.6 °F |
| 53 °C | 127.4 °F |
| 54 °C | 129.2 °F |
| 55 °C | 131 °F |
| 56 °C | 132.8 °F |
| 57 °C | 134.6 °F |
| 58 °C | 136.4 °F |
| 59 °C | 138.2 °F |
| 60 °C | 140 °F |
The other direction
131 °F converts back to 55 °C, which is the same relationship read the other way. Going from Fahrenheit to Celsius, subtract 32 first and then multiply by 5/9 — doing it in the other order is the usual mistake and produces a plausible-looking wrong answer.
The full converter handles any value, in either direction, including kelvin, and shows the formula as it works.