63 °F to °C

63 °F equals 17.22 °C. 63 °F is cool: sweater or light-jacket weather.

Negative values are fine down to absolute zero (−459.67 °F).
Formula
°C = (°F − 32) × 5/9
Kelvin
290.37 K
Rankine
522.67 °R
As a temperature change
Δ63 °F = Δ35 °C
63 °F =17.22 °C17.2222 degrees Celsius

Show the work

  1. °C = (°F − 32) × 5/9
  2. Subtract 32: 63 − 32 = 31
  3. Multiply by 5/9 (divide by 1.8): 31 × 5/9 = 17.2222 °C
Fahrenheit to Celsius conversion table
°F°CReference point
−40−40Both scales read the same
−20−28.89
0−17.78Freezer setting
10−12.22
20−6.67
320Water freezes
404.44Refrigerator limit
5010
6015.56
6518.33
6820Room temperature
7021.11
7222.22
7523.89
8026.67
8529.44
9032.22
9535
9736.11
9836.67
98.637Traditional normal body temp
9937.22
10037.78
100.438Fever threshold
10138.33
10238.89
10339.44
10440High fever
11043.33
12048.89
14562.78Whole cuts of beef, pork (USDA)
16071.11Ground meat (USDA)
16573.89Poultry (USDA)
212100Water boils at sea level
250121.11
300148.89
325162.78
350176.67Moderate oven
375190.56
400204.44
425218.33
450232.22
500260

63 °F at a glance

Celsius
17.22 °C
Exact fraction
17 2/9 °C
Kelvin
290.37 K
Rankine
522.67 °R
Rounded
17 °C
Quick estimate
16.5 °C

How to convert 63 °F to Celsius

°C = (°F − 32) × 5/9
(63 − 32) × 5/9 = 31 × 5/9 = 155/9 = 17.22 °C

Subtract 32 first because the two scales put zero in different places, then multiply by 5/9 because a Fahrenheit degree is only 5/9 the size of a Celsius degree. 31 is not a multiple of 9, so the exact answer is the repeating decimal 17 2/9 °C.

Estimate it in your head

Subtract 30 and halve: (63 − 30) ÷ 2 = 16.5 °C. That is 0.7 degrees low, close enough to decide what to wear.

What 63 °F feels like

At 17.22 °C, most people want long sleeves outdoors, and an unheated house at 63 °F feels chilly. It is pleasant running and hiking weather.

Indoors, 63 °F is below the 68 °F daytime winter setting the US Department of Energy suggests for saving energy, so a home this cool would usually have the heat on.

Temperatures near 63 °F

FahrenheitCelsiusKelvin
58 °F14.44 °C287.59 K
59 °F15 °C288.15 K
60 °F15.56 °C288.71 K
61 °F16.11 °C289.26 K
62 °F16.67 °C289.82 K
63 °F17.22 °C290.37 K
64 °F17.78 °C290.93 K
65 °F18.33 °C291.48 K
66 °F18.89 °C292.04 K
67 °F19.44 °C292.59 K
68 °F20 °C293.15 K

Going the other way: 17 °C in Fahrenheit is 62.6 °F.

Frequently asked questions

What is 63 °F in Celsius?

63 °F is 17.22 °C: subtract 32 (31) and multiply by 5/9.

Is 63 °F hot or cold?

63 °F is cool: sweater or light-jacket weather.

How do you convert 63 °F to Celsius in your head?

Subtract 30 and divide by 2: (63 − 30) ÷ 2 = 16.5 °C, compared with the exact 17.22 °C.

What is 63 °F in Kelvin?

63 °F is 290.37 K. Convert to Celsius (17.22 °C) and add 273.15.

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

Sources: Wind chill and heat index use the US National Weather Service formulas. Health and food-safety thresholds are from the CDC, FDA, USDA, CPSC and US Department of Energy.