This calculator uses math formulas from the 1944 NDS section 401-403 "Combined Bending and Axial Loading"
No representation is made as to whether they are correct or that they are correct for your situation.
This calculator is not for design, it is out of date, the math is fairly simple and it is for educational use only.
The user assumes all risk from their use of this program.

 Total Axial Load on Column(pounds)P Total Uniform Side Bending Load on Column(pounds) Length of Column (inches) Depth of Column, in bending plane (inches) Width of Column(inches) Select Species and Grade #2 Eastern White Pine B+S #2 Beech-Birch-Hickory B+S #2 Beech-Birch-Hickory P+T #2 Doug Fir B+S #2 Doug Fir P+T #2 Eastern Hemlock B+S #2 Eastern Hemlock P+T #2 Eastern White Pine B+S #2 Eastern White Pine P+T #2 Mixed Maple B+S #2 Mixed Maple P+T #2 Mixed Oak B+S #2 Mixed Oak P+T #2 Northern Red Oak B+S #2 Northern Red Oak P+T #2 Red Maple B+S #2 Red Maple P+T #2 Red Oak B+S #2 Red Oak P+T #2 Red Pine B+S #2 Red Pine P+T Dense SS Southern Pine >5x5 SS Southern Pine >5x5 #1 Dense Southern Pine >5x5 #1 Southern Pine >5x5 #2 Dense Southern Pine >5x5 #2 Southern Pine >5x5 #2 White Oak B+S #2 White Oak P+T RESULTS
 Allowable Fiberstress in Bending (Fb)(psi) Modulus of Elasticity (E or MOE)(million psi) Allowable Shear (Fv)(psi) Column Modulus of Elasticity (Emin)(million psi) Column Fc, Allowable fiberstress in compression(psi)
 Max allowable buckling stress (psi)P/A=(.329*E))/(Span/D1)2 Column actual axial stress (psi)P/A Compare to allowable Fc and Max buckling stress Percentage of Column allowable axial stress (P/A)/FC Max bending Moment, (in/lbs) Actual bending stress, psi, Compare to Allowable Fb Percentage of Column allowable bending stress(lbs) Column Pass/Fail Column Pass<1>Fail