Celsius to Fahrenheit converter
Type either value and the other one updates as you type.
- Degrees Fahrenheit (°F)
- 98.6
37 °C = 98.6 °F.
Degrees Fahrenheit (°F): 98.6. 37 °C = 98.6 °F.
Degrees Fahrenheit (°F) by degrees Celsius (°C)
How to calculate
Converts degrees Celsius (°C) to degrees Fahrenheit (°F) and back, with the exact unit definitions.
Example with the default inputs (Degrees Celsius (°C) 37): 37 °C = 98.6 °F.
Formula: °F = °C × 9 ÷ 5 + 32
- Temperature scales have different zero points, so the conversion adds or subtracts as well as multiplies.
- The answer shows at most 6 decimal places; the calculation keeps full precision.
Worked examples
Each example is checked against the calculator on every build.
- Degrees Celsius (°C) 100 gives Degrees Fahrenheit (°F) 212.Source: exact unit definitions in NIST SP 811 (2008), Appendix B.8
- Degrees Celsius (°C) 37 gives Degrees Fahrenheit (°F) 98.6.Source: exact unit definitions in NIST SP 811 (2008), Appendix B.8
- Degrees Fahrenheit (°F) 98.6 gives Degrees Celsius (°C) 37.Source: exact unit definitions in NIST SP 811 (2008), Appendix B.8
Other questions people ask
What is the formula to convert Celsius to Fahrenheit?
°F = °C × 9 ÷ 5 + 32. For example, 37 °C is 98.6 °F.
How do I convert Celsius to Fahrenheit?
Use °F = °C × 9 ÷ 5 + 32. 37 °C gives 98.6 °F.
How do I convert Fahrenheit back to Celsius?
Reverse the formula, or type the degrees Fahrenheit into the second box and the converter works it out.
At what temperature are Fahrenheit and Celsius equal?
At −40. −40 °F is −40 °C, because (−40 − 32) × 5 ÷ 9 = −40.