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This free online beam calculator computes reactions, shear force, bending moment, deflection, and stress for common beam setups. You can model cantilever and simply supported beams with different load types directly in the browser. A paid upgrade exists for advanced features, but the base calculator is usable for free.
SkyCiv's free beam calculator lets you model simply supported or cantilever beams and compute support reactions directly in the browser. It also generates shear force and bending moment diagrams, with optional deflection/stress outputs. The free version is accessible online without a mandatory paid plan.
The Simply Supported Beam Calculator computes reactions, shear, bending moments, slopes, and deflections for multiple load cases. It includes options for material modulus and moment of inertia to produce deflection results. Calcresource also provides a separate cantilever beam calculator on the same site for matching beam type coverage.
The bolt torque calculator helps you make sure you tighten your bolts correctly.
You can determine the equivalent carbon content in steel using this carbon equivalent calculator.
Use this floor joist calculator to determine the number of floor joists you will need and how much they will cost. You can also use this calculator to determine the maximum allowable span a floor joist can be depending on its wood species, grade, size, and supported load.
This insulation calculator will help you determine the R-value of a selected material at a given thickness or the total R-Value of an entire barrier or wall made of different layers of materials at their respective thicknesses.
Use this junction box sizing calculator to determine the recommended dimensions of a junction box depending on the number of straight and angle pulls entering it and meet the National Electrical Code®.
Use this rivet size calculator to determine the recommended pop or blind rivet size for your specified application.
Estimate the spindle speed and feed rate for lathe machining and milling operations using the spindle speed calculator.
Find out the different cross-sectional dimensions of any metric bolt's external thread and nut's internal thread using this thread calculator, given the thread pitch, basic major diameter, and tolerance class details of the threads.
Use our K-factor calculator to determine the position of the neutral axis in the sheet of metal you are planning to bend.
Use this wood beam span calculator to check a wood beam of a particular size and length to see if it can support a given uniform linear load by comparing its allowable and required bending and shear stress.
Check our CFM calculator to find the required airflow in cubic feet per minute (CFM) for any room size, depending on its recommended air change per hour.
Use this pitch diameter calculator to find the basic, maximum, and minimum pitch diameter of ISO metric screw threads.
Use this true position calculator to assess whether the bore and shaft axis positions are within the tolerance limit.
Estimate the strength of weld joints using the welding calculator.
Use this box fill calculator to find the correct size of electrical utility box to fit the conducting wires, grounding wires, and devices or equipment you would need to install and have it pass the National Electrical Code®.
Use this punch force calculator to estimate the force required to punch a hole in materials.
Use this door header size calculator to find the correct lumber size for your door header or determine the maximum length that a piece of lumber for a door header can span.
Find the rate at which material is being removed when turning, milling, and drilling using the material removal rate calculator.
Are your engineering instincts sound? Take our quiz to test your knowledge of construction physics and beam loads.
Estimate the taper length and angle using the taper calculator.
Calculate the pitch of your threaded fastener very easily with this thread pitch calculator.