Engineering & Construction
Simply Supported Beam Calculator
Find the support reactions and midspan moment of a simply supported beam, plus the elastic deflection.
Free forever.
The two supports share the load equally. Point load at midspan: each reaction is P/2 and the moment is PL/4. Uniform load: each reaction is wL/2 and the moment is wL²/8.
Result
Press Calculate.
Result
Press Calculate.
How to use the Simply Supported Beam Calculator
- Choose a point load at midspan or a uniform load.
- Enter the load and the span.
- Enter E and I if you want the deflection as well.
Questions
How are the reactions shared?
Equally. Each support takes half of a central point load, or half of a uniform load.
What is the moment?
PL/4 for a central point load, and wL²/8 for a uniform load.
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