Length
1 metre (m) = 3.281 feet 1 foot (ft) = 0.3048
metres
Area
1 square metre = 10.764 square feet = 1.196 square
yards 1 square yard = 0.836 square metres
Mass
1 kilogram (kg) = 2.205 pounds (lb) 1 lb
= 0.454 kilograms 1 ounce (oz) = 28.3 grams
(gm)
Volume
1 cubic metre = 35.3 cubic feet 1 cubic foot = 0.0283
cubic metres = 6.21 gallons
1 gallon = 0.00456 cubic metres = 4.56 litres = 0.16 cubic
feet
1 litre = 0.22 gallons = 0.26 gallons (USA) 1 gallon (USA) = 0.00379 cubic
metres = 3.79 litres
Density
1 lb per cubic foot = 0.0016 kg per cubic
metre 1 kg per cubic metre = 0.06 lb per cubic foot
Force
1 poundal = 0.138 N 1 Newton = 7.23
poundals 1 lbf (the weight of a 1 lb mass) = 4.45 N
Pressure
1 lbf
per square inch = 6895 Pa 1 Pa = 0.000145 lbf per square inch
Energy
1 ft pdl = 0.0421 Joules (J)
1 J = 23.7 ft pdl 1 BTU = 1055 J
Power
1 Horse power (HP)
= 746 W 1 W = 0.0013 HP
Speed and velocity
1 metre per
second (m/s) = 3.281 feet per second = 2.24 mph
1 mile per hour (mph) = 1.606 km per
hour = 0.446 m/s