Celsius to Fahrenheit Converter
Change °C to °F, with the steps shown on a thermometer. Multiply by 9/5 (that is 1.8), then add 32.
°C to °F
68 °F
20 degrees Celsius is 68 degrees Fahrenheit.
The same amount in other units
Show me how
Why does this work?
All steps as text
Tip: press ← and → to move between steps, or click any step.
The formula: F = C × 9/5 + 32
Water freezes at 0 °C = 32 °F and boils at 100 °C = 212 °F. So 100 Celsius degrees cover 180 Fahrenheit degrees, and each Celsius degree is 9/5 of a Fahrenheit degree. Multiply by 9/5, then add the 32 that the Fahrenheit scale starts at. For 20 °C: 20 × 9/5 = 36, and 36 + 32 = 68 °F.
A quick estimate: double it and add 30. 20 °C → 40 + 30 = 70 °F, close to the exact 68 °F.
Celsius to Fahrenheit chart
| Celsius | Fahrenheit | Example |
|---|---|---|
| −40 °C | −40 °F | the same on both scales |
| −20 °C | −4 °F | |
| −10 °C | 14 °F | |
| 0 °C | 32 °F | water freezes |
| 10 °C | 50 °F | |
| 15 °C | 59 °F | |
| 20 °C | 68 °F | room temperature |
| 25 °C | 77 °F | |
| 30 °C | 86 °F | a hot day |
| 37 °C | 98.6 °F | body temperature |
| 38 °C | 100.4 °F | |
| 40 °C | 104 °F | |
| 100 °C | 212 °F | water boils |
| 150 °C | 302 °F | low oven |
| 180 °C | 356 °F | moderate oven |
| 200 °C | 392 °F | hot oven |
| 220 °C | 428 °F | |
| 250 °C | 482 °F | very hot oven |
All values are exact.
Questions
What is 37 °C in Fahrenheit?
98.6 °F: 37 × 9/5 = 66.6, and 66.6 + 32 = 98.6.
Is there a temperature that is the same in both?
Yes, −40. −40 × 9/5 = −72, and −72 + 32 = −40.
What is 180 °C in Fahrenheit for an oven?
356 °F. Recipes usually round it to 350 °F.
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