68 Fahrenheit to Celsius Conversion breakdown and explanation
Following the formula above if you want to get degrees Celsius you have to subtract 32 from degrees Fahrenheit multiply the result by 5 and divide it by 9.
So in case with 68 we have: ((68 - 32) × 5) ÷ 9 = (36 × 5) ÷ 9 = 180 ÷ 9 = 20 °C