A.1Conversion Factors - English to SI

To convert from

To

Multiply by

in.

m (1000 mm)

0.025400

ft

m

0.304800

lb

N (0.001 kN)

4.448222

kip (1000 lbs)

kN

4.448222

plf (lb/ft)

N/m

14.593904

psi (lb/in.2)

kPa

6.894757

ksi (kips/in.2)

MPa

6.894757

psf (lb/ft2)

N/m2 (Pa)

47.88026

pcf (lb/ft3)

kg/m3 

16.018460

ft-kips

kN m

1.355818