Celsius to Fahrenheit
To convert Celsius to Fahrenheit, multiply by 9/5 (1.8) and add 32. 0 °C is 32 °F, and each 1 °C step is 1.8 °F.
°F = (°C × 9/5) + 32
By Piero Nanni · Last checked
Celsius to Fahrenheit Calculator
20°C = 68°F
How to Convert Celsius to Fahrenheit
Formula:
°F = (°C × 9/5) + 32
Worked example:
(20 × 9/5) + 32 = 68 °F
Celsius to Fahrenheit Conversion Table
| °C | °F |
|---|---|
| -40 | -40 |
| -35 | -31 |
| -30 | -22 |
| -25 | -13 |
| -20 | -4 |
| -15 | 5 |
| -10 | 14 |
| -5 | 23 |
| 0 | 32 |
| 5 | 41 |
| 10 | 50 |
| 15 | 59 |
| 20 | 68 |
| 25 | 77 |
| 30 | 86 |
| 35 | 95 |
| 37 | 98.6 |
| 40 | 104 |
| 45 | 113 |
| 50 | 122 |
| 55 | 131 |
| 60 | 140 |
| 65 | 149 |
| 70 | 158 |
| 75 | 167 |
| 80 | 176 |
| 85 | 185 |
| 90 | 194 |
| 95 | 203 |
| 100 | 212 |
| 105 | 221 |
| 110 | 230 |
| 115 | 239 |
| 120 | 248 |
| 125 | 257 |
| 130 | 266 |
| 135 | 275 |
| 140 | 284 |
| 145 | 293 |
| 150 | 302 |
| 155 | 311 |
| 160 | 320 |
| 165 | 329 |
| 170 | 338 |
| 175 | 347 |
| 180 | 356 |
| 185 | 365 |
| 190 | 374 |
| 195 | 383 |
| 200 | 392 |
| 205 | 401 |
| 210 | 410 |
| 215 | 419 |
| 220 | 428 |
About This Conversion
Celsius to Fahrenheit is the conversion most people meet while cooking from a recipe written on the other side of the Atlantic, or while reading a weather forecast abroad. Because the two scales have different zero points, you cannot scale a Celsius value the way you would scale meters into feet: the multiply-then-add step is not optional.
The mental shortcut worth learning is "double it and add 30". It is accurate to within about 3 °F between 0 °C and 30 °C, which covers nearly every weather and room-temperature use. It drifts badly at oven temperatures, where 180 °C is 356 °F rather than the 390 °F the shortcut suggests, so use the real formula for cooking.
Frequently Asked Questions
What is 20 °C in Fahrenheit?
20 °C equals 68 °F. Multiply 20 by 1.8 to get 36, then add 32.
What is a normal body temperature in Fahrenheit?
37 °C, the conventional figure for normal body temperature, equals 98.6 °F exactly.
What oven temperature is 180 °C in Fahrenheit?
180 °C is 356 °F. Most recipes and oven dials round this to 350 °F, which is close enough for baking.
Why can I not just multiply Celsius by 1.8?
Because the scales start in different places. 0 °C is 32 °F, not 0 °F, so the +32 offset has to be added after scaling.
Sources
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