−6 °C at a glance
- Fahrenheit
- 21.2 °F
- Kelvin
- 267.15 K
- Rankine
- 480.87 °R
- Rounded
- 21 °F
- Quick estimate
- 18 °F
- As a change (Δ)
- Δ−6 °C = Δ−10.8 °F
How to convert −6 °C to Fahrenheit
−6 × 1.8 = −10.8
−10.8 + 32 = 21.2 °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: −6 × 2 + 30 = 18 °F, which is 3.2 degrees low.
Careful with temperature changes: a rise of 6 °C is a rise of 10.8 °F — multiply by 1.8 but do not add 32.
What −6 °C means outdoors
At 21.2 °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 | −10 °C | 13 °F | Dress in layers |
| 20 km/h | −13 °C | 9 °F | Dress in layers |
| 40 km/h | −15 °C | 4 °F | Dress in layers |
Temperatures near −6 °C
| Celsius | Fahrenheit | Kelvin |
|---|---|---|
| −11 °C | 12.2 °F | 262.15 K |
| −10 °C | 14 °F | 263.15 K |
| −9 °C | 15.8 °F | 264.15 K |
| −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 |
| −3 °C | 26.6 °F | 270.15 K |
| −2 °C | 28.4 °F | 271.15 K |
| −1 °C | 30.2 °F | 272.15 K |
Going the other way: 21 °F in Celsius is −6.11 °C.
Frequently asked questions
What is −6 °C in Fahrenheit?
−6 °C is 21.2 °F: multiply by 1.8 (−10.8) and add 32.
Is −6 °C hot or cold?
−6 °C is below freezing: ice, frost and possibly snow.
How do you convert −6 °C to Fahrenheit quickly?
Double it and add 30: 18 °F. The exact value is 21.2 °F.
What is −6 °C in Kelvin?
Add 273.15: −6 °C = 267.15 K.