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Formula
°F = (°C × 9/5) + 32
Example
Example: convert 30 degrees Celsius to degrees Fahrenheit.
30 °C = 86 °F
Conversion table
| degrees Celsius (°C) | degrees Fahrenheit (°F) |
|---|---|
| 1 °C | 33.8 °F |
| 2 °C | 35.6 °F |
| 5 °C | 41 °F |
| 10 °C | 50 °F |
| 20 °C | 68 °F |
| 50 °C | 122 °F |
| 100 °C | 212 °F |
Explanation
Celsius is used in most countries for weather and daily temperature, while Fahrenheit is commonly used in the United States for weather temperature.
How to convert degrees Celsius to degrees Fahrenheit
- Start with the value in degrees Celsius.
- Multiply by 9/5, then add 32.
- The result is the temperature in degrees Fahrenheit.
Example: 30 °C → 86 °F
Frequently Asked Questions
How do you convert Celsius to Fahrenheit?
Multiply Celsius by 9/5 and add 32 to get Fahrenheit.
How do you convert Fahrenheit to Celsius?
Subtract 32 from Fahrenheit and multiply by 5/9 to get Celsius.
What is 40°F in Celsius?
40°F equals about 4.44°C.
What is 100°C in Fahrenheit?
100°C equals 212°F.
How do you convert Kelvin to Celsius?
Subtract 273.15 from Kelvin to get Celsius.
Why is Kelvin used in science?
Kelvin is used in science because it starts at absolute zero and avoids negative temperature values in many formulas.
What is room temperature in Celsius and Fahrenheit?
Room temperature is commonly around 20–22°C or 68–72°F.
Can I convert Celsius, Fahrenheit, and Kelvin here?
Yes. This tool supports conversions between Celsius, Fahrenheit, and Kelvin.
Why is −40 special in temperature conversion?
−40 is the point where the Celsius and Fahrenheit scales are equal: −40°C = −40°F.
Where does the 273.15 offset come from?
Kelvin uses absolute zero as 0 K. The size of a degree is the same as Celsius, so 0°C corresponds to 273.15 K.