Celsius to Fahrenheit Converter
Convert degrees Celsius to degrees Fahrenheit (°C to °F) instantly, with the formula and a conversion chart.
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How to convert degrees Celsius to degrees Fahrenheit
Multiply by 9/5 (1.8), then add 32. °F = °C × 1.8 + 32.
Example: 25°C = 77°F.
Quick estimate: Double it and add 30 for a rough estimate: 20°C ≈ 70°F (exactly 68°F).
Weather forecasts, oven temperatures and body temperature are the everyday reasons to convert, especially for the US.
Celsius to Fahrenheit conversion chart
| Degrees Celsius | Degrees Fahrenheit |
|---|---|
| -40°C | -40°F |
| -20°C | -4°F |
| -10°C | 14°F |
| 0°C | 32°F |
| 10°C | 50°F |
| 20°C | 68°F |
| 25°C | 77°F |
| 30°C | 86°F |
| 37°C | 98.6°F |
| 40°C | 104°F |
| 100°C | 212°F |
| 180°C | 356°F |
How to use this tool
- 1Type the number of degrees Celsius in the Value box.
- 2The result in degrees Fahrenheit appears instantly.
- 3Use the ⇄ button to convert degrees Fahrenheit to degrees Celsius instead, or pick any other unit.
Features
- Exact °C to °F conversion using the standard definition.
- Results update as you type, rounded to 6 decimal places.
- Switch to any other length, weight, temperature, volume or speed unit.
Privacy
Everything is calculated in your browser. Nothing is sent to a server.
Frequently asked questions
Is 37°C a fever?
37°C (98.6°F) is normal body temperature. A fever is usually 38°C (100.4°F) or higher.
At what temperature are Celsius and Fahrenheit equal?
At −40: −40°C is exactly −40°F.
How do I convert degrees Fahrenheit back to degrees Celsius?
Use the swap button in the converter above, or the Fahrenheit to Celsius converter. Temperature scales have different zero points, so you can't simply divide by the factor.
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