http://www.jobsincivil.com/knoref/unitconversions.php
Measures Of Length:
1 millimetre = 0.039 inches
1 inch = 25.4 millimetres
1 inch = 2.54 centimeteres
1 foot = 12 inches
1 foot = 30.48 centimeters
1 foot =0.3048 meter
1 yard = 3 feet
Measures Of Weight:
1 pound avp = 0.45 kg
1 kilogram = 2.205 pound avp
1 quintal = 100 kg
1 tonne = 1000 kg
1 ton US = 907.2 kg
1 ton US = 2000 lbs avp
1 ton US = 0.8929 BR. tons
Measures Of Volume:
1 cu. cm = 0.031 cu. ins.
1 cu. inch = 16.387 cu. cm
1 cu. inch = 6.228 gallon imp
1 cu. inch = 28.316 litres
1 cu. inch = 0.0283 cu. m
1 cu. foot = 28.317 cu. cm
more conversion on
http://www.jobsincivil.com/knoref/unitconversions.php
Units of Heat:
1 h.p. = 1.014 metric h.p.
1 h.p. = 745.7 watt
1 h.p. = 0.7457 kilowatt
1 h.p. = 10.7 kg.-cals/min.
1 kilowatt = 1.341 h.p.
1 kilowatt = 1.36 metric h.p.
1 calorie = 4.19 joules
1 calorie = 4.19 watt-sec
1 kg-cal. = 4190 joules
1 watt = 1 joule/sec
1 watt-hr. = 3600 joules
1 metric h.p. = 0.986 h.p.
1 metric h.p. = 735.5 watts
Thermometric scales:
F to C : C = 5/9(F-32)
C to F : F = 9/5(C+32)
where,
C = Temperature in Centigrade
F = Temperature in Fahrenheit
Sundry Unit:
1 dozen = 12 units
1 gross = 12 dozen