-3°C in Fahrenheit
The exact conversion, the formula, and a mental shortcut that is close enough for weather.
-3 degrees Celsius is
26.6 °F
Rounded, that is about 27 °F. In Kelvin it is 270.15 K.
The formula
Multiply by 9/5 and add 32.
(-3 × 9 ÷ 5) + 32 = -5.4 + 32 = 26.6 °F
For weather, a shortcut that needs no calculator is to double the Celsius and add 30: -3 × 2 + 30 = 24, against an exact 26.6. It drifts by about 2 °F per 10 °C, which is fine for deciding what to wear and useless for cooking.
What this temperature feels like
Below freezing. Water turns to ice at 0 °C, which is 32 °F.
Nearby temperatures
| Celsius | Fahrenheit | Kelvin |
|---|---|---|
| -8 °C | 17.6 °F | 265.15 K |
| -7 °C | 19.4 °F | 266.15 K |
| -6 °C | 21.2 °F | 267.15 K |
| -5 °C | 23 °F | 268.15 K |
| -4 °C | 24.8 °F | 269.15 K |
| -2 °C | 28.4 °F | 271.15 K |
| -1 °C | 30.2 °F | 272.15 K |
| 0 °C | 32 °F | 273.15 K |
| 1 °C | 33.8 °F | 274.15 K |
| 2 °C | 35.6 °F | 275.15 K |
Frequently asked questions
What is -3°C in Fahrenheit?
26.6°F. Multiply the Celsius figure by 9/5 and add 32.
What is the formula?
°F = (°C × 9/5) + 32. To go the other way, °C = (°F − 32) × 5/9.
At what temperature are the two scales equal?
−40. That is the single point where Celsius and Fahrenheit give the same number, which makes it a handy check on any conversion you do by hand.
Nearby values
Last reviewed September 5, 2026.