Fahrenheit to Celsius Converter
To convert fahrenheit to celsius, subtract 32 from Fahrenheit, then multiply by 5/9 (or use the formula: (°F − 32) × 5/9 = °C).
Popular Conversions
How to Convert Fahrenheit to Celsius
- Take the temperature value in Fahrenheit (°F).
- Subtract 32 from the Fahrenheit value.
- Multiply the result by 5/9 (or divide by 1.8) to get the temperature in Celsius (°C).
Fahrenheit to Celsius Formula
(°F − 32) × 5/9 = °C
Standard conversion relationship between fahrenheit (°F) and celsius (°C).
Fahrenheit to Celsius Conversion Example
Apply (°F − 32) × 5/9 = °C: 0 °F → -17.7778 °C
Worked calculation showing 0 fahrenheit converted to celsius.
About Fahrenheit and Celsius
Temperature scales describe thermal state. Celsius and Fahrenheit use different zero points and degree sizes, while kelvin is an absolute thermodynamic scale beginning at absolute zero. Fahrenheit is a temperature scale related to Celsius by the exact formula °F = °C × 9/5 + 32. Celsius is a temperature scale on which 0 °C equals 273.15 K and one Celsius degree has the same interval size as one kelvin.
Exact Conversion Relationship
(°F − 32) × 5/9 = °C
Apply (°F − 32) × 5/9 = °C: 0 °F → -17.7778 °C
Fahrenheit to Celsius Conversion Table
Frequently Asked Questions
How do you convert Celsius to Fahrenheit?+
Multiply temperature in Celsius by 9/5 and add 32. Formula: °F = (°C × 9/5) + 32.
How do you convert Fahrenheit to Celsius?+
Subtract 32 from temperature in Fahrenheit and multiply by 5/9. Formula: °C = (°F - 32) × 5/9.
What is 0 degrees Celsius in Kelvin?+
0°C is equal to 273.15 Kelvin (absolute zero is 0 K or -273.15°C).
What is a fahrenheit?+
Fahrenheit is a temperature scale related to Celsius by the exact formula °F = °C × 9/5 + 32. It belongs to the US customary system.
What is a celsius?+
Celsius is a temperature scale on which 0 °C equals 273.15 K and one Celsius degree has the same interval size as one kelvin. It belongs to the metric system.
What is the relationship between fahrenheit and celsius?+
(°F − 32) × 5/9 = °C. The reverse converter applies the corresponding inverse formula.
How do I convert fahrenheit to celsius?+
Apply the conversion formula shown above to the fahrenheit value. For example, Apply (°F − 32) × 5/9 = °C: 0 °F → -17.7778 °C.
How precise are the conversion results?+
The calculator uses JavaScript floating-point arithmetic and displays a practical rounded result. Keep extra digits during intermediate calculations and round only the final value to the precision your work requires.