What is the formula to convert Celsius to Fahrenheit in Python?

f = c * 9 / 5 + 32. For 100 °C it gives 212.0 °F, and for 0 °C it gives 32.0 °F.

How do I convert Fahrenheit to Celsius?

c = (f - 32) * 5 / 9. Subtract 32 first — that is what the brackets are for — then multiply by 5 / 9. For 212 °F it gives 100.0 °C.

easyInput and operatorsPython

A formula program that also teaches something important about Python 3: the / operator always gives a decimal answer.

Read a temperature in Celsius (an integer) and print it in Fahrenheit using F = C × 9 / 5 + 32.

program.py

c = int(input())
f = c * 9 / 5 + 32
print("Fahrenheit =", f)

Fahrenheit = 158.0

Writing C * (9 / 5 + 32) — the brackets change the order and the answer is wrong.
Using // (floor division), which throws away the decimal part.

Turn the formula around: subtract 32 first, then multiply by 5 / 9. The brackets make the subtraction happen first.

program.py

f = float(input())
c = (f - 32) * 5 / 9
print("Celsius =", c)

Celsius = 100.0

range(0, 101, 20) gives 0, 20, 40 … 100, and the same formula is applied to each value.

program.py

for c in range(0, 101, 20):
    print(c, "C =", c * 9 / 5 + 32, "F")

(no input)

0 C = 32.0 F
20 C = 68.0 F
40 C = 104.0 F
60 C = 140.0 F
80 C = 176.0 F
100 C = 212.0 F

What is the formula to convert Celsius to Fahrenheit in Python?: f = c * 9 / 5 + 32. For 100 °C it gives 212.0 °F, and for 0 °C it gives 32.0 °F.
How do I convert Fahrenheit to Celsius?: c = (f - 32) * 5 / 9. Subtract 32 first — that is what the brackets are for — then multiply by 5 / 9. For 212 °F it gives 100.0 °C.

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This program is the kind asked in the M3 (Python) theory paper and the PR-3 practical exam.