Congressional Affairs | Newsroom | Speeches | Priority Areas | What's Cool | Publications | Partners | History | About Us You are in: NSF Home > OLPA Home > Newsroom > Fact Sheets/ Background Briefings > Temperature Conversion

 Temperature Conversion

 Media contact: Sean Kearns (703) 292-7963

### Temperature Conversion

Convert Celsius to Fahrenheit

When converting Celsius to Fahrenheit, it helps to know that, at standard atmosphere, on the Celsius scale, water freezes at 0 degrees, equal to 32 degrees Fahrenheit; and water boils at 100 C (or 212 F).

To convert Celsius temperatures into Fahrenheit:

1. Multiply the Celsius temperature by 9.
2. Divide the answer by 5.

Here's the equation:

F = (9/5) C + 32

Here is an automatic C-to-F converter.

Convert Fahrenheit to Celsius

To convert Fahrenheit temperatures into Celsius (the operations are opposite, in reverse order):

1. Subtract 32 from the Fahrenheit temperature.
2. Multiply the answer by 5.
3. Divide the answer by 9.

Here's the equation:

C = (F-32) x (5/9)

Here is an automatic F-to-C converter.

Click here for a temperature-conversion chart for temperatures ranging from -40 C (which happens to be -40 F) to 50 C (122 F).

 National Science Foundation Office of Legislative and Public Affairs 4201 Wilson Boulevard Arlington, Virginia 22230, USA Tel: 703-292-8070 FIRS: 800-877-8339 | TDD: 703-292-5090