Convert 64°F to Celsius
Temperature converter
64°F equals
17.78°C
Cool: Like a typical spring day
How to convert 64°F to °C
Follow these steps to check the answer yourself.
- 1
Write the conversion formula
To convert Fahrenheit to Celsius, subtract 32 and multiply by 5/9.
°C = (°F − 32) × 5/9
- 2
Substitute the Fahrenheit value
Replace °F with 64.
°C = (64 − 32) × 5/9
- 3
Subtract 32
Work out the bracket first.
64 − 32 = 32
- 4
Multiply by 5/9
Scale the result to Celsius.
32 × 5/9 = 17.78
Answer: 64°F = 17.78°C
64°F and nearby temperatures
Fahrenheit values from 59°F to 69°F converted to Celsius and Kelvin. Select a value to open its own conversion page.
| Fahrenheit | Celsius | Kelvin |
|---|---|---|
| 59°F to °C | 15°C | 288.15 K |
| 60°F to °C | 15.56°C | 288.71 K |
| 61°F to °C | 16.11°C | 289.26 K |
| 62°F to °C | 16.67°C | 289.82 K |
| 63°F to °C | 17.22°C | 290.37 K |
| 64°F (this page) | 17.78°C | 290.93 K |
| 65°F to °C | 18.33°C | 291.48 K |
| 66°F to °C | 18.89°C | 292.04 K |
| 67°F to °C | 19.44°C | 292.59 K |
| 68°F to °C | 20°C | 293.15 K |
| 69°F to °C | 20.56°C | 293.71 K |
Fahrenheit to Celsius conversion chart
Common temperatures from -40°F to 450°F. Bookmark or print this chart for quick reference.
| °F | °C |
|---|---|
| -40°F | -40°C |
| -20°F | -28.89°C |
| 0°F | -17.78°C |
| 10°F | -12.22°C |
| 20°F | -6.67°C |
| 32°F | 0°C |
| 40°F | 4.44°C |
| 50°F | 10°C |
| °F | °C |
|---|---|
| 60°F | 15.56°C |
| 70°F | 21.11°C |
| 80°F | 26.67°C |
| 90°F | 32.22°C |
| 98.6°F | 37°C |
| 100°F | 37.78°C |
| 110°F | 43.33°C |
| 120°F | 48.89°C |
| °F | °C |
|---|---|
| 150°F | 65.56°C |
| 200°F | 93.33°C |
| 212°F | 100°C |
| 250°F | 121.11°C |
| 300°F | 148.89°C |
| 350°F | 176.67°C |
| 400°F | 204.44°C |
| 450°F | 232.22°C |
Is 64°F hot or cold?
64°F (17.78°C) reads as cool on the thermometer: like a typical spring day. Typical context: mild weather and comfortable room temperature.
64°F is 24.8°F warmer than the inside of a typical refrigerator (39.2°F), and 4°F cooler than typical room temperature (68°F).
Quick mental math
To estimate Fahrenheit to Celsius in your head, subtract 30 from the Fahrenheit value and halve it.
(64 − 30) ÷ 2 = 17°C (exact answer: 17.78°C)
The shortcut is close for everyday temperatures but drifts further from the exact answer in very hot or very cold conditions.
To go the other way, use the Celsius to Fahrenheit converter: 17.78°C converts back to 64°F.
Frequently asked questions
What is 64°F in Celsius?
64°F equals 17.78°C. This is calculated with the standard Fahrenheit to Celsius formula.
How do I convert 64 Fahrenheit to Celsius?
To convert Fahrenheit to Celsius, subtract 32 and multiply by 5/9. For 64°F the result is 17.78°C.
Is 64°F hot or cold?
17.8°C is mild - comfortable with light clothing or a sweater.
What is the formula for Fahrenheit to Celsius conversion?
The formula is: °C = (°F − 32) × 5/9
Good to know
- Anders Celsius proposed his scale in 1742. It was originally inverted, with 0 for boiling water and 100 for freezing; the order was flipped soon after his death.
- Daniel Gabriel Fahrenheit introduced his scale in 1724. The United States and a handful of other countries still use it for everyday temperatures.
- -40 is the only temperature that reads the same in Celsius and Fahrenheit.
- A change of 1°C or 1 K equals a change of 1.8°F.
Sources
- SI Units – Temperature (NIST (US National Institute of Standards and Technology))
Conversion formulas between °C, °F and K, and the 273.15 offset.
Written and checked by Abdul Manan.
Last updated . Results are for general information; see the disclaimer.