Every statics calculator you actually need — beam analysis, Mohr's circle, truss analysis, column buckling, pressure vessels, bolt patterns, and more. SI and US Imperial. Browser-based. One-time payment.
Built by an engineer. Covers every major topic from a first-year statics and mechanics of materials course — and the calculations practicing engineers reach for daily.
Simply supported, cantilever, and fixed-fixed beams. Point loads and distributed loads. Shear force, bending moment, and deflection diagrams. L/δ ratio, reactions, material presets.
Composite cross-sections built from rectangles, circles, I-beams, hollow sections, triangles, and L-angles. Parallel axis theorem applied automatically. Ix, Iy, centroid, section modulus.
Principal stresses, max shear, von Mises, principal angle. Direct stress input or compute from P/A + Mc/I. Interactive Mohr's Circle SVG with all key points labeled.
Euler and Johnson formulas with automatic classification. Pin-pin, fixed-free, fixed-pin, fixed-fixed end conditions. Slenderness ratio chart shows where your column sits.
Max shear stress, angle of twist, power transmission for solid and hollow circular shafts. Material presets for steel, aluminum, titanium, brass. Factor of safety with warning.
Thin and thick-walled cylinders and spheres. Hoop, axial, radial stress, von Mises, FS yield, FS ultimate. Auto-checks thin-wall assumption validity (t/r ratio).
Direct shear plus eccentric (torsional) loading on bolt groups. Finds centroid, polar moment of inertia, per-bolt resultant forces, and critical bolt shear stress. Up to 12 bolts.
Solves 2D static equilibrium for any determinate beam or body. Pin, roller, and fixed supports. Point loads, trapezoidal distributed loads, applied moments. Equilibrium verification included.
Method of joints via matrix assembly. Pratt, Howe, Warren presets or build custom. Members classified as Tension, Compression, or Zero-force. Color-coded diagram with force labels.
Tools you'll reach for on the job and in the classroom.
Stop doing SFD/BMD and Mohr's circle by hand for every problem set. Check your answers in seconds. All 9 tools map directly to Statics, Mechanics of Materials, and Machine Design courses.
Quick sanity checks during design review. Bolt pattern on a bracket, buckling check on a strut, pressure vessel wall thickness — done in 30 seconds, not 30 minutes in a full FEA model.
Live demonstrations in lecture. Change boundary conditions and loads in real time while students watch the diagrams update. Each tool includes the key equations so students follow the math.
Working in a shop where ANSYS isn't available. Get quick structural estimates in real units — pounds, feet, psi — without the software overhead or the learning curve.
No subscriptions. No monthly fees. Pay once, use it for your entire career.