temperatures.com
Temperature converter

Convert Fahrenheit to Celsius, With a Conversion Table

=

How to convert Fahrenheit to Celsius

°C = (°F − 32) × 5/9

To convert Fahrenheit to Celsius, subtract 32 from the Fahrenheit reading, then multiply by 5/9. Subtracting 32 first lines up the freezing points of the two scales (32°F = 0°C); the 5/9 factor then rescales the size of each degree.

Quick estimate: subtract 30 and halve the result. For 70°F: (70 − 30) ÷ 2 = 20°C (exact answer 21.1°C).

Worked examples

  • Convert 98.6°F (body temperature): 98.6 − 32 = 66.6; 66.6 × 5/9 = 37°C
  • Convert 72°F (room temperature): 72 − 32 = 40; 40 × 5/9 = 22.2°C
  • Convert 32°F: 32 − 32 = 0; 0 × 5/9 = 0°C (freezing point)

Fahrenheit to Celsius conversion table (°F to °C)

Fahrenheit (°F)Celsius (°C)
-40°F-40°C
-30°F-34.44°C
-20°F-28.89°C
-10°F-23.33°C
0°F-17.78°C
10°F-12.22°C
20°F-6.67°C
30°F-1.11°C
40°F4.44°C
50°F10°C
60°F15.56°C
70°F21.11°C
80°F26.67°C
90°F32.22°C
100°F37.78°C
110°F43.33°C
120°F48.89°C
130°F54.44°C
140°F60°C
150°F65.56°C
160°F71.11°C
170°F76.67°C
180°F82.22°C
190°F87.78°C
200°F93.33°C
210°F98.89°C
220°F104.44°C
Full °F to °C table: -459.67°F to 2000°F (188 values)
Fahrenheit (°F)Celsius (°C)
-459.67°F-273.15°C
-400°F-240°C
-300°F-184.44°C
-200°F-128.89°C
-100°F-73.33°C
-60°F-51.11°C
-50°F-45.56°C
-40°F-40°C
-35°F-37.22°C
-30°F-34.44°C
-25°F-31.67°C
-20°F-28.89°C
-15°F-26.11°C
-10°F-23.33°C
-5°F-20.56°C
0°F-17.78°C
1°F-17.22°C
2°F-16.67°C
3°F-16.11°C
4°F-15.56°C
5°F-15°C
6°F-14.44°C
7°F-13.89°C
8°F-13.33°C
9°F-12.78°C
10°F-12.22°C
11°F-11.67°C
12°F-11.11°C
13°F-10.56°C
14°F-10°C
15°F-9.44°C
16°F-8.89°C
17°F-8.33°C
18°F-7.78°C
19°F-7.22°C
20°F-6.67°C
21°F-6.11°C
22°F-5.56°C
23°F-5°C
24°F-4.44°C
25°F-3.89°C
26°F-3.33°C
27°F-2.78°C
28°F-2.22°C
29°F-1.67°C
30°F-1.11°C
31°F-0.56°C
32°F0°C
33°F0.56°C
34°F1.11°C
35°F1.67°C
36°F2.22°C
37°F2.78°C
38°F3.33°C
39°F3.89°C
40°F4.44°C
41°F5°C
42°F5.56°C
43°F6.11°C
44°F6.67°C
45°F7.22°C
46°F7.78°C
47°F8.33°C
48°F8.89°C
49°F9.44°C
50°F10°C
51°F10.56°C
52°F11.11°C
53°F11.67°C
54°F12.22°C
55°F12.78°C
56°F13.33°C
57°F13.89°C
58°F14.44°C
59°F15°C
60°F15.56°C
61°F16.11°C
62°F16.67°C
63°F17.22°C
64°F17.78°C
65°F18.33°C
66°F18.89°C
67°F19.44°C
68°F20°C
69°F20.56°C
70°F21.11°C
71°F21.67°C
72°F22.22°C
73°F22.78°C
74°F23.33°C
75°F23.89°C
76°F24.44°C
77°F25°C
78°F25.56°C
79°F26.11°C
80°F26.67°C
81°F27.22°C
82°F27.78°C
83°F28.33°C
84°F28.89°C
85°F29.44°C
86°F30°C
87°F30.56°C
88°F31.11°C
89°F31.67°C
90°F32.22°C
91°F32.78°C
92°F33.33°C
93°F33.89°C
94°F34.44°C
95°F35°C
96°F35.56°C
97°F36.11°C
97.5°F36.39°C
98°F36.67°C
98.5°F36.94°C
99°F37.22°C
99.5°F37.5°C
100°F37.78°C
100.5°F38.06°C
101°F38.33°C
101.5°F38.61°C
102°F38.89°C
102.5°F39.17°C
103°F39.44°C
103.5°F39.72°C
104°F40°C
105°F40.56°C
106°F41.11°C
107°F41.67°C
108°F42.22°C
109°F42.78°C
110°F43.33°C
120°F48.89°C
130°F54.44°C
140°F60°C
150°F65.56°C
160°F71.11°C
170°F76.67°C
180°F82.22°C
190°F87.78°C
200°F93.33°C
210°F98.89°C
220°F104.44°C
230°F110°C
240°F115.56°C
250°F121.11°C
260°F126.67°C
270°F132.22°C
280°F137.78°C
290°F143.33°C
300°F148.89°C
310°F154.44°C
320°F160°C
330°F165.56°C
340°F171.11°C
350°F176.67°C
360°F182.22°C
370°F187.78°C
380°F193.33°C
390°F198.89°C
400°F204.44°C
410°F210°C
420°F215.56°C
430°F221.11°C
440°F226.67°C
450°F232.22°C
460°F237.78°C
470°F243.33°C
480°F248.89°C
490°F254.44°C
500°F260°C
510°F265.56°C
520°F271.11°C
530°F276.67°C
540°F282.22°C
550°F287.78°C
600°F315.56°C
650°F343.33°C
700°F371.11°C
750°F398.89°C
800°F426.67°C
850°F454.44°C
900°F482.22°C
950°F510°C
1000°F537.78°C
1500°F815.56°C
2000°F1093.33°C

Converting in your head

Subtract 30 from the Fahrenheit figure and halve it. For 70°F that gives 20°C against an exact 21.1°C. The shortcut is within about 1°C between 30°F and 70°F and drifts further out at the extremes (at 100°F it says 35°C; the exact answer is 37.8°C).

Reference temperatures in °F and °C

Reference point°F°C
Absolute zero-459.67°F-273.15°C
Arctic winter day-22°F-30°C
Home freezer-0.4°F-18°C
Water freezes / ice melts32°F0°C
Refrigerator37.4°F3°C
Cool spring day50°F10°C
Comfortable room69.8°F21°C
Summer afternoon86°F30°C
Normal body temperature98.6°F37°C
Hot bath104°F40°C
Death Valley record heat134.06°F56.7°C
Water boils (sea level)212°F100°C
Moderate oven356°F180°C

Frequently asked questions

What is 70 degrees Fahrenheit in Celsius?
70°F equals 21.1°C - comfortable room temperature.
What is 100 degrees Fahrenheit in Celsius?
100°F equals 37.8°C. As a body temperature it is just below the 100.4°F (38°C) fever threshold; as weather it is a genuinely hot day.
Why does the formula subtract 32 first?
Because the scales are offset: water freezes at 32°F but 0°C. Removing the offset first lets the 5/9 ratio convert the degree sizes correctly.