Data Page
           Conversion Factors


Length
                             From      To           Multiply by   
                             mile         km          1.609347      
                              inch        mm        25.4  
                              inch        cm          2.54                                       
                              inch        meter     0.0254       
                              foot         meter     0.3048       
                              yard        meter     0.9144

Area
                              From      To           Multiply by
                              sq ft        sq m      0.09290304 E
                              sq in       sq m      0.00064516 E
                              sq yd      sq m      0.83612736 E
                              acre        hectare  0.4047
                              sq. mile  km 2      2.590
                              acre         m 2        4047
                              acre        hectare  0.4047
                              sq.yard    m 2        0.8361
                              sq. ft         m 2        0.092 90
                              sq inch    mm 2     645.2


Volume
                              From      To           Multiply by
                              cu in       cu m       0.00001639
                              cu ft        cu m       0.02831685
                              cu yd      cu m       0.7645549
                              gallon     liter         3.7854118
                              gallon    cu m       0.00378541
                              fl oz         ml           29.57353
                              fl oz         cu m       0.00002957
                             Acre ft     m 3          1 233
                             cubic yd m 3          0.7646
                             cubic ft   m 3          0.028 32
                             cubic ft    L              28.32
                      100 board ft  m 3         0.2360
                             gallon      L             3.785
                             cm 3        L             1000


Force
                              From      To           Multiply by
                              kip          kg           453.6
                              kip          newton  4,448.222
                              lb            kg           0.4535924
                              lb            newton  4.448222
                              plf           N/m        14.59
                              klf           kN/m      14.59


Pressure or stress
                              From      To           Multiply by
                              kip/ sq "  MPa       6.894757
                            Lbs/Sq ft  kg/m2    4.8824
                              psf          pascal   47.88
                              psi          pascal   6,894.757
                              bar          psi          14.5
                              kg/cm2  bar          1.0197
                              bar          kg/cm2   0.9807
                              psi          kg/cm2   14.22


Mass / Mass (weight) per length / Mass per volume (density)
                              From      To           Multiply by
                              lb             kg            0.4535924
                              klf            kg/m       0.001488
                              plf            kg/m      1.488
                              pcf           kg/cum  16.01846
                              lb/cu yd  kg/cum   0.5933
1 U.S. gallon of water weighs 8.34 pounds (U.S.) @ 60 deg F.
1 cubic foot of water weighs 62.4 pounds (U.S.).
1 U.S. bag of cement weighs 94 lbs.


Power
                              From      To           Multiply by
                              hp           watt        745.6999  E


Velocity
                              From      To           Multiply by
                              mph        km/hr     1.60934
                              mph        m/s         0.44704

Quantity          
                              From      To           Multiply by
Volume rate of flow      cfm        L/s            0.4719
Velocity, speed              ft/s         m/s          0.3048
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