Science, Tech, Math › Science Converting Fahrenheit to Celsius 77 Fahrenheit To Celsium Temperature Conversion Example Share Flipboard Email Print Malcolm Piers/Getty Images Science Chemistry Basics Chemical Laws Molecules Periodic Table Projects & Experiments Scientific Method Biochemistry Physical Chemistry Medical Chemistry Chemistry In Everyday Life Famous Chemists Activities for Kids Abbreviations & Acronyms Biology Physics Geology Astronomy Weather & Climate By Anne Marie Helmenstine, Ph.D. Chemistry Expert Ph.D., Biomedical Sciences, University of Tennessee at Knoxville B.A., Physics and Mathematics, Hastings College Dr. Helmenstine holds a Ph.D. in biomedical sciences and is a science writer, educator, and consultant. She has taught science courses at the high school, college, and graduate levels. our editorial process Facebook Facebook Twitter Twitter Anne Marie Helmenstine, Ph.D. Updated February 28, 2019 This example problem illustrates the method to convert temperatures from Celsius to Fahrenheit. Problem: What is the temperature in Celsius of 77 °F? Solution: The conversion formula for °F to °C isTC = 5/9(TF - 32)TC = 5/9(77 - 32)TC = 5/9(45)TC = 25 °C Answer: The temperature in Fahrenheit of 77 °F is 25 °C.