Conversion Table
Engineering Terms

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Imperial to Metric Standard Metric to Imperial Standard
To convert into multiply by To convert into multiply by
Length Length
inches mm 25.4 mm inches 0.03937
inches cm 2.54 cm inches 0.3937
inches meters 0.0254 meters inches 39.37
feet meters 0.3048 meters feet 3.281
yards km 914.4 meters yards 1.0936
yards meters 0.9144 km yards 1093.6
miles km 1.609 km miles 0.6214

Surface

Surface

in² cm² 6.452 cm² in² 0.155
in² 0.0929 ft² 10.764
Sq Yard 0.8361 Square Meter Sq Yards 1.196
Sq Miles km² 2.59 km² Sq Miles 0.3861
Acres hectares 0.4047 Hectares acres 2.471

Volume

Volume

in³ cm³ 16.387 cm³ in³ 0.06102
in³ litres 0.016387 cm³ liquid oz 0.03381
ft³ 0.028317 ft³ 35.314
ft³ litres 28.317 yards³ 1.308
yards³ 0.7646 litres US Gal 264.2
liquid oz cm³ 29.57 litres in³ 61.023
US Gal 0.003785 litres ft³ 0.03531
US Gal litres 3.785 litres US Gal 0.2642
Weight Weight
grains grams 0.0648 grams grains 15.432
ounces grams 28.35 grams ounces 0.03527
ounces kg 0.02835 kg ounces 35.27
lbs kg 0.4536 kg lbs 2.2046
lbs Tons 0.000454 kg US Tons 0.001102
US Tons kg 907.2 kg Tons Long 0.000984
US Tons Tons 0.9072 Tons lbs 2204.6
Tons Long kg 1016.0 Tons US Tons 1.1203
Tons Long Tons 1.0160 Tons Tons Long 0.9842

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