15 Fahrenheit (F) to Celsius (C)

15 F = -9.444444444 C

15 Fahrenheit equals -9.444444444 Celsius — that is, 15 F = -9.444444444 C. You get there by multiplying the value in Fahrenheit by -17.22222222, the conversion factor between these two Temperature units. The table below covers the other most-searched values, and the converter accepts any number.

Formula

C = F × -17.22222222

F to C conversion table

F	C
1 F	-17.22222222 C
2 F	-16.66666667 C
3 F	-16.11111111 C
5 F	-15 C
10 F	-12.22222222 C
15 F	-9.444444444 C
20 F	-6.666666667 C
25 F	-3.888888889 C
30 F	-1.111111111 C
50 F	10 C
75 F	23.88888889 C
100 F	37.77777778 C
150 F	65.55555556 C
200 F	93.33333333 C
500 F	260 C
1000 F	537.7777778 C

Open the full unit converter Reverse conversion: Celsius → Fahrenheit

Frequently asked questions

How many C are in 15 F?+

15 Fahrenheit equals -9.444444444 Celsius, so 15 F = -9.444444444 C.

What is the formula to convert F to C?+

Multiply the number of Fahrenheit by -17.22222222. In other words: C = F × -17.22222222.

How much is 1 F in C?+

1 Fahrenheit = -17.22222222 Celsius (1 F = -17.22222222 C).

Is this conversion exact?+

Yes. The factor used is the unit’s official definition; results are rounded to 10 significant digits for readability.

Other common conversions

1 F → C 2 F → C 3 F → C 5 F → C 10 F → C 15 F → C 20 F → C 25 F → C 30 F → C 50 F → C 75 F → C 100 F → C 150 F → C 200 F → C 500 F → C 1000 F → C