−8 °C to °F

−8 °C equals 17.6 °F. −8 °C is below freezing: ice, frost and possibly snow.

Negative values are fine down to absolute zero (−273.15 °C).
Formula
°F = °C × 9/5 + 32
Kelvin
265.15 K
Rankine
477.27 °R
As a temperature change
Δ−8 °C = Δ−14.4 °F
−8 °C =17.6 °F17.6 degrees Fahrenheit

Show the work

  1. °F = °C × 9/5 + 32
  2. Multiply by 9/5 (1.8): −8 × 1.8 = −14.4
  3. Add 32: −14.4 + 32 = 17.6 °F
Celsius to Fahrenheit conversion table
°C°FReference point
−40−40Both scales read the same
−18−0.4Home freezer (about 0 °F)
−1014
032Water freezes
439.2Refrigerator (40 °F or colder)
1050
1559
2068Comfortable room
2271.6
2577Warm day
3086Hot day
3595
3798.6Normal body temperature
38100.4Fever
40104
50122
60140
74165.2Poultry cooked through (165 °F)
80176
90194
100212Water boils at sea level
120248
140284Very low oven
150302
160320Low oven
170338
180356Moderate oven
190374
200392Moderately hot oven
220428Hot oven
230446
240464Very hot oven
250482
260500Pizza / max home oven

−8 °C at a glance

Fahrenheit
17.6 °F
Kelvin
265.15 K
Rankine
477.27 °R
Rounded
18 °F
Quick estimate
14 °F
As a change (Δ)
Δ−8 °C = Δ−14.4 °F

How to convert −8 °C to Fahrenheit

°F = °C × 9/5 + 32
−8 × 1.8 = −14.4
−14.4 + 32 = 17.6 °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: −8 × 2 + 30 = 14 °F, which is 3.6 degrees low.

Careful with temperature changes: a rise of 8 °C is a rise of 14.4 °F — multiply by 1.8 but do not add 32.

What −8 °C means outdoors

At 17.6 °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:

WindFeels likeIn °FNote
10 km/h−13 °C9 °FDress in layers
20 km/h−15 °C4 °FDress in layers
40 km/h−18 °C−1 °FCover exposed skin

Temperatures near −8 °C

CelsiusFahrenheitKelvin
−13 °C8.6 °F260.15 K
−12 °C10.4 °F261.15 K
−11 °C12.2 °F262.15 K
−10 °C14 °F263.15 K
−9 °C15.8 °F264.15 K
−8 °C17.6 °F265.15 K
−7 °C19.4 °F266.15 K
−6 °C21.2 °F267.15 K
−5 °C23 °F268.15 K
−4 °C24.8 °F269.15 K
−3 °C26.6 °F270.15 K

Going the other way: 18 °F in Celsius is −7.78 °C.

Frequently asked questions

What is −8 °C in Fahrenheit?

−8 °C is 17.6 °F: multiply by 1.8 (−14.4) and add 32.

Is −8 °C hot or cold?

−8 °C is below freezing: ice, frost and possibly snow.

How do you convert −8 °C to Fahrenheit quickly?

Double it and add 30: 14 °F. The exact value is 17.6 °F.

What is −8 °C in Kelvin?

Add 273.15: −8 °C = 265.15 K.

Need a different value? Use the Celsius to Fahrenheit converter, or browse the Celsius to Fahrenheit chart.

Sources: Wind chill and heat index use the US National Weather Service formulas; boiling points at altitude use the Antoine equation for water and the standard atmosphere. Health and food-safety thresholds are from the CDC, USDA, CPSC and US Department of Energy.