CONVERSION FACTORS FROM ENGLISH TO SI UNITS

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CONVERSION FACTORS FROM ENGLISH TO SI UNITS.

conversion factors from

Length:
1 ft = 0.3048 m
1 ft = 30.48 cm
1 ft = 304.8 mm
1 in. = 0.0254 m
1 in. = 2.54 cm
1 in. = 25.4 mm

Area :

1 ft2 = 929.03 × 10-4 m2
1 ft2 = 929.03 cm2
1 ft2 = 929.03 × 102 mm2
1 in.2 = 6.452 × 10-4 m2
1 in.2 = 6.452 cm2
1 in.2 = 645.16 mm2

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Volume:
1 ft3 = 28.317 × 10-3 m3
1 ft3 = 28.317 × 103 cm3
1 in.3 = 16.387 × 10-6 m3
1 in.3 = 16.387 cm3

Force:
1 lb = 4.448 N
1 lb = 4.448 × 10-3 kN
1 lb = 0.4536 kgf
1 kip = 4.448 kN
1 U.S. ton = 8.896 kN
1 lb = 0.4536 × 10-3 metric ton
1 lb / ft = 14.593 N / m

Stress:
1 lb / ft2 = 47.88 N / m2
1 lb / ft2 = 0.04788 kN / m2
1 U.S. ton / ft1 = 95.76 kN / m2
1 kip/ft2 = 47.88 kN / m2
1 lb/in.2 = 6.895 kN / m2

Unit weight:
1 lb / ft3 = 0.1572 kN/m3
1 lb / in.3 = 271.43 kN/m3

Moment :
1 lb-ft = 1.3558 N · m
1 lb-in. = 0.11298 N · m

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