−17 °C at a glance
- Fahrenheit
- 1.4 °F
- Kelvin
- 256.15 K
- Rankine
- 461.07 °R
- Rounded
- 1 °F
- Quick estimate
- −4 °F
- As a change (Δ)
- Δ−17 °C = Δ−30.6 °F
How to convert −17 °C to Fahrenheit
−17 × 1.8 = −30.6
−30.6 + 32 = 1.4 °F
Multiply by 9/5 (1.8) because each Celsius degree spans 1.8 Fahrenheit degrees, then add 32 because water freezes at 32 °F rather than 0. The answer always has at most one decimal place, because multiplying a whole number by 1.8 can only leave tenths.
Estimate it in your head
Double it and add 30: −17 × 2 + 30 = −4 °F, which is 5.4 degrees low — good for weather, not for cooking or medicine.
Careful with temperature changes: a rise of 17 °C is a rise of 30.6 °F — multiply by 1.8 but do not add 32.
What −17 °C means outdoors
At 1.4 °F, standing water freezes and road surfaces can glaze over. Dry snow squeaks underfoot at these temperatures, and salt works more slowly on roads. With wind, it feels colder still:
| Wind | Feels like | In °F | Note |
|---|---|---|---|
| 10 km/h | −24 °C | −11 °F | Cover exposed skin |
| 20 km/h | −27 °C | −16 °F | Cover exposed skin |
| 40 km/h | −30 °C | −22 °F | Frostbite possible in 30 min or less |
Temperatures near −17 °C
| Celsius | Fahrenheit | Kelvin |
|---|---|---|
| −22 °C | −7.6 °F | 251.15 K |
| −21 °C | −5.8 °F | 252.15 K |
| −20 °C | −4 °F | 253.15 K |
| −19 °C | −2.2 °F | 254.15 K |
| −18 °C | −0.4 °F | 255.15 K |
| −17 °C | 1.4 °F | 256.15 K |
| −16 °C | 3.2 °F | 257.15 K |
| −15 °C | 5 °F | 258.15 K |
| −14 °C | 6.8 °F | 259.15 K |
| −13 °C | 8.6 °F | 260.15 K |
| −12 °C | 10.4 °F | 261.15 K |
Going the other way: 1 °F in Celsius is −17.22 °C.
Frequently asked questions
What is −17 °C in Fahrenheit?
−17 °C is 1.4 °F: multiply by 1.8 (−30.6) and add 32.
Is −17 °C hot or cold?
−17 °C is below freezing: ice, frost and possibly snow.
How do you convert −17 °C to Fahrenheit quickly?
Double it and add 30: −4 °F. The exact value is 1.4 °F.
What is −17 °C in Kelvin?
Add 273.15: −17 °C = 256.15 K.