15 °C to °F
15 °C equals 59 °F.
How to convert 15 °C to °F
The formula
Multiply the Celsius value by 1.8 (or 9/5), then add 32.
°F = °C × 9/5 + 32
Apply it to 15 °C
15 × 9/5 + 32 = 27 + 32 = 59
Rounded for everyday use: 59 °F.
A quick mental estimate
For everyday weather temperatures you can double the Celsius figure and add 30: 15°C → about 60°F. The exact answer is 59°F, so the shortcut is close — it works best between about −10°C and 30°C and drifts at oven temperatures.
About 15 °C
15°C is a mild spring or autumn day in the UK, and is also a typical cellar or wine-storage temperature.
Nearby values
Convert any other value
Need a different number? Use the main Celsius to Fahrenheit converter to convert any value instantly, in either direction.
Going the other way, 59 °F converts back to 15 °C. Use the Fahrenheit to Celsius converter for any value.
Frequently asked questions
What is 15 °C in °F?
15 °C is 59 °F.
How do you convert Celsius to Fahrenheit?
Multiply the Celsius value by 1.8 (or 9/5), then add 32. For example, 15 × 9/5 + 32 = 27 + 32 = 59.
Is 15 °C exactly 59 °F?
Yes — with the formula used on this page the result is exact.
How many °C is 59 °F?
59 °F is 15 °C.
Why does 15 °C come up so often?
15°C is a mild spring or autumn day in the UK, and is also a typical cellar or wine-storage temperature.