ConverterC to F Converter
Use C to F when the source is already identified in degrees C and you need the corresponding degrees F reading.
Use a decimal point, such as 20.5. Scientific notation such as 1e3 is accepted. Results display up to two decimals with trailing zeroes removed.
What C And F Mean Here
C means a Celsius temperature reading and F means a Fahrenheit temperature reading. Enter only the numeric C value in the field; keep the scale label with any result you copy.
The page uses F = (C x 9/5) + 32. It calculates first, then displays up to two decimals and removes trailing zeroes.
Quick Checks For An Abbreviated Conversion
- 0 C should return 32 F, and -40 C should return -40 F.
- A comma is not accepted as a decimal or thousands separator; use a decimal point.
- This formula converts a reading. A C interval uses only the 9/5 factor.
- A value below -273.15 C is still calculated but receives an ordinary absolute-zero warning.
Frequently Asked Questions
No. C and F are abbreviated scale labels, and this page uses the same Celsius-to-Fahrenheit formula as the full-name converter.
It uses F = (C x 9/5) + 32 for temperature readings.
Use the Swap control to open the F to C page with the current result transferred as its input.
Learn More About This Topic
Use the supporting references when the assumptions behind C to F matter as much as the immediate result. For more context, read the Celsius-to-Fahrenheit formula guide before using the result in a real workflow.
Related Converter Tools
Use the full-name Celsius to Fahrenheit converter for broader explanation, or return to the Temperature Converter hub.