Conversion Factors

(Centigrade x 1.8) + 32 = degrees Fahrenheit

(Fahrenheit - 32) /1 .8 = degrees Centigrade/Celsius

1 Bar = 10³ mbar= 14.504 psi = 4.0146 x 10² in H₂0 = 29.530 in Hg

1 gal water = 10 lbs

1 hp = 745.2 watts

1 BTU = 0.252 k calories = 0.2930 watt-hours

1 BTU per lb = 1.8 cal per gram

1 kw-hr = 3412 BTU per hour

Millimetres x .03937 = inches; or ÷ 25.4 = inches

Centimetres x .3937 = inches; or ÷ 2.54 = inches

Metres x 39.37 = inches

Metres x 3.28 = feet

Kilometres x 3280.8 = feet

Square metres x 10.764 = square feet

Kilograms x 2.2046 = pounds

Litres ÷ 4.546 = gallons

Litres ÷ 28.317 = cubic feet

Kilowatts x 1.34 = h.p. ( 33,000 foot pounds per minute)

Watts ÷ 746 = horse power