What is 28 degrees Celsius in Fahrenheit? 28 c equals 82.4 f 82.4 Fahrenheit  The C to F formula is (C * 9/5) + 32 = F 28 x 9 = 252 28 / 5 = 50.4 50.4 + 32 = 82.4 28 degrees Celsius equals 82.4 degrees Fahrenheit. 28ctof 28c to f Celsius Fahrenh