Estimate Fahrenheit To Kelvin
Convert Fahrenheit to Celsius, then add 273.15.
Formula: K = (°F − 32) × 5/9 + 273.15
Conversion factors are directional: multiply when the factor is stated as output per input, and divide when the relationship is stated the other way around.
A quick sanity check is to convert a round value such as 1, 10, or 100 and confirm that the magnitude moves in the expected direction.