Table 1-2 Temperature Conversion Scale

F 9 5 C 32 = + ° One way to remember when to use 9/5 and when to use 5/9 is to keep in mind that the Fahrenheit scale has more divisions than the Celsius scale. In going from Celsius to Fahrenheit, multiply by the ratio that is larger; in going from Fahrenheit to Celsius, use the smaller ratio. Another method of converting temperatures from one scale to another is the decimal method. This method uses the ratio 1°C equals 1.8°F. To find Fahrenheit from Celsius, multiply the Celsius value by 1.8 and add 32. To find Celsius from Fahrenheit, 1-14 ¹Fahrenheit temperatures are rounded to the nearest 0.5 degree. For a more exact conversion, utilize the psychrometric computer or the mathematical method. Table1-2 Table 1-2.—Temperature Conversion Scale