Simply supported beam deflection and stress calculator to find forces, moments, stresses, deflections and slopes of a simply supported beam
under point, distributed and moment loads.
Simply Supported Beam Deflection and Stress Calculator:
Note : Use dot "." as decimal separator.
Note * : P is positive in downward direction as shown in the figure and negative
in upward direction. M is positive in clockwise direction as shown in the
figure. w_{a} and w_{b} are positive in downward direction as shown in the figure and negative
in upward direction.
Note ** : For second moment of area calculations of structural beams, visit "
Sectional Properties Calculators".
INPUT LOADING TO SIMPLY SUPPORTED BEAM 
POINT LOADS 

CONCENTRATED MOMENTS 

DISTRIBUTED LOADS 

RESULTS 

Param. 
Value 
Reaction Force 1 [R_{1}] 



Reaction Force 2 [R_{2}] 


Transverse Shear Force @ distance x [V_{x}] 


Maximum Transverse Shear Force [V_{max}] 


Moment @ distance x [M_{x}] 



Maximum Moment [M_{max}] 


Slope 1 [θ_{1}] 



Slope 2 [θ_{2}] 


Slope @ distance x [θ_{x}] 


Maximum Slope [θ_{max}] 


Deflection @ distance x [y_{x}] 



Maximum Deflection [y_{max}] 


Bending Stress @ distance x [σ_{x}] 



Maximum Bending Stress [σ_{max}] 


Note * : R_{1} and R_{2} are vertical end reactions at the left and right, respectively, and are positive upward. Shear forces and deflections are positive in upward direction and negative
in downward direction. All moments are positive when producing compression on the upper portion of the beam cross
section. All slopes are positive when up and to the right.
Note: Stresses are positive numbers, and these are stress magnitudes in the
beam. It does not distinguish between tension or compression of the structural
beam. This distinction depends on which side of the beam's neutral plane c input
corresponds.
Slope
Deflection
Moment
Shear Force