Relationship between the various temperature scales

a°C = ( a + 273.15 ) K = ( 9/5 a + 32 ) °F = ( 9/5 a + 491.67) °R

a K = ( a - 273.15 ) °C = ( 9/5 a - 459.67 ) °F = 9/5 a °R

a°F = ( a + 459.67) °R = 5/9 ( a - 32 ) °C = 5/9 ( a + 459.67 ) K

a°R = ( a - 459.67 ) °F = 5/9 ( a - 491.67 ) °C = 5/9 a K