Free Online Frame Calculator


This free online frame calculator will generate and find the bending moment and shear force diagrams of a 2D frame structure. The free version of this powerful engineering tool allows users to input frames with a maximum of 3 members with applied point loads and moments for 2D frame analysis. Users can also control settings such as units, display settings of framing members and nodes etc. by simply clicking the 'Settings' button.

This free online frame calculator will only allow certain features (3 members, 2 supports, 2 point loads and 2 distributed loads only). More features are available in the paid SkyCiv Frame Calculator, such as deflection and stress results, as well as unlimited supports, members and loads.

The frame calculator offers an easy to use structural analysis program which allows users to apply loads to a structure and interpret the results in an easy and clean diagrams. Not what you're after? SkyCiv offer a range of other structural analysis software such as our SkyCiv Beam and SkyCiv Truss calculators!

Need More Functionality?

SkyCiv offers a Student account, offering the SkyCiv Frame Software - allowing you to solve larger structures, with more members, supports and forces. SkyCiv also offers a full 3D Structural Analysis Software in the cloud, complete with professional reporting, 3D Rendering and Stress Analysis. If you have any questions with the account types, simply contact us.

  • Alan

    Hey all, just to let you know, it is the second day that I’m trying to use your feature but it doesn’t work. A server problem message appear. …:)…see ya

    • Hi Alan. That’s strange because it seems to be working just fine from my end. The server is definitely available right now — there is either something wrong with your setup or your browser. Please ensure you have added a support (as it doesn’t look like there is one as well as a section). Although it should mention the error if it was that simple. It might also interest you to know that we have a free beam calculator:

      • Alan

        Hello Paul,
        Just to let you know, still the same problem, I even tried in another browser, but still doesn’t work….

        • Hi Alan :) Sorry for the issues you’re experiencing. Let’s get to the bottom of this – I’ve emailed you. Hope to hear from you soon.

  • Vengatesh Hari

    For frame section at least 3 members is needed..but in free calculator..2 members only worst.please make it as three members

    • Hi there. Many frames have two members like this one.

      • Vengatesh Hari

        At least make it as 3 member in free would be very helpful for students.

        • Two members is sufficient for many problems. Maybe you should have a look at SkyCiv Frame as it can do 10 members! It comes with the SkyCiv Student account along with SkyCiv Truss and SkyCiv Beam.

      • Christy McGowan

        This unhelpful reply made me not want to give you my money, I will now not buy this product.

        • Hi Christy. The free calculator can only do 2 members at this stage. I showed a frame scenario which has 2 members as it may help others to see that it can handle a range of scenarios. Sorry if it cannot handle your particular analysis but this is why we have SkyCiv Frame. More members puts more stress on the server and paid members get priority for this. Try out the demo account as there are some pre-loaded files in there so you can see how it works.

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