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2010 Construction and Material Specifications - Ohio Department of ...

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109.02<br />

TABLE 109.02-1 ENGLISH TO SI (METRIC) CONVERSION FACTORS<br />

Symbol When You<br />

Know<br />

Length<br />

Multiply By To Find Symbol<br />

mil mils 25.4 micrometers µm<br />

in inches 25.4 millimeters mm<br />

ft feet 0.3048 meters m<br />

yd yards 0.9144 meters m<br />

mi<br />

Area<br />

miles 1.609347 kilometers km<br />

in 2 square inches 645.16 square millimeters mm 2<br />

ft 2 square feet 0.09290304 square meters m 2<br />

yd 2 square yards 0.8361274 square meters m 2<br />

ac acres 0.4046873 hectares ha<br />

ac acres 4046.873 square meters m 2<br />

mi 2 square miles 2.589998 square kilometers km 2<br />

Volume<br />

fl oz fluid ounces 29.57353 milliliters mL<br />

gal gallons 3.785412 liters L<br />

ft 3 cubic feet 0.02831685 cubic meters m 3<br />

yd 3 cubic yards 0.7645549 cubic meters m 3<br />

Mass<br />

oz ounces 28.34952 grams g<br />

lb pounds 0.4535924 kilograms kg<br />

T 2000 pounds 0.9071847 metric tons t<br />

Temperature<br />

ºF Fahrenheit C = (F-<br />

32)/1.8<br />

Celsius ºC<br />

Illumination<br />

fc foot-c<strong>and</strong>les 10.76391 lux lx<br />

fl foot-lamberts 3.426259 c<strong>and</strong>elas per<br />

square meter<br />

cd/m 2<br />

Force <strong>and</strong> Pressure or Stress<br />

lbf⋅ft pounds-force<br />

foot<br />

1.355818 newton meter N⋅m<br />

lbf pounds force 4.448222 newtons N<br />

lbf/ft 2<br />

pounds force per 47.88026 pascals Pa<br />

(psf) square foot<br />

lbf/in 2<br />

pounds force per 0.006894757 megapascals MPa<br />

(psi) square inch<br />

60

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