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
(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
| Fahrenheit | Celsius | Kelvin |
|---|---|---|
| 58 °F | 14.44 °C | 287.59 K |
| 59 °F | 15 °C | 288.15 K |
| 60 °F | 15.56 °C | 288.71 K |
| 61 °F | 16.11 °C | 289.26 K |
| 62 °F | 16.67 °C | 289.82 K |
| 63 °F | 17.22 °C | 290.37 K |
| 64 °F | 17.78 °C | 290.93 K |
| 65 °F | 18.33 °C | 291.48 K |
| 66 °F | 18.89 °C | 292.04 K |
| 67 °F | 19.44 °C | 292.59 K |
| 68 °F | 20 °C | 293.15 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.