Engineering Calculators
Our engineering calculators support structural, mechanical, and process work with tools for beam analysis, load capacity, stress, and material sizing. Grounded in AISC, ACI, and ASME methods, they help engineers and students validate designs and check assumptions fast.
Beam Deflection Calculator
Calculate the maximum deflection of a simply-supported or cantilever beam under a point load.
Bolt Group Calculator
Analyze eccentrically loaded bolt groups using the AISC Instantaneous Center of Rotation method to find the bolt group coefficient C.
Crane Outrigger Calculator
Determine outrigger pad sizing and ground bearing pressure for mobile crane operations based on crane loads and soil conditions.
Distillation Column Calculator
Design distillation columns using the Fenske-Underwood-Gilliland shortcut method with minimum stages, minimum reflux, and optimal feed stage.
Formwork Pressure Calculator
Calculate concrete formwork lateral pressure per ACI 347R-14 for walls and columns. Accounts for pour rate, temperature, and concrete type.
Gear Ratio Calculator
Calculate gear ratio from tooth counts, plus the resulting output RPM and torque multiplication.
Injection Molding Calculator
Estimate injection molding costs including mold tooling, piece part cost, cycle time, and breakeven vs 3D printing from part geometry and material selection.
Post-Tensioning Calculator
Calculate PT tendon elongation, friction losses, and stress profiles per ACI 318 and PTI standards for parabolic and harped tendons.
Punching Shear Calculator
Check two-way punching shear for reinforced concrete flat slabs per ACI 318-19 for interior, edge, and corner columns.
Seismic Base Shear Calculator
Calculate seismic base shear and vertical force distribution per ASCE 7 Equivalent Lateral Force procedure with automatic design category determination.
Snow Drift Calculator
Calculate ASCE 7-22 snow drift surcharge loads for stepped roofs, parapets, and roof projections with automatic drift geometry.
Two-Phase Flow Calculator
Calculate two-phase flow pressure drop using Lockhart-Martinelli, Friedel, and Baker flow regime correlations for gas-liquid pipe flow.
Weld Cost Calculator
Estimate welding costs including labor, consumables, wire/rod consumption, and gas usage for SMAW, GMAW, FCAW, GTAW, and SAW processes.
Weld Group Calculator
Analyze eccentrically loaded weld groups using the AISC ICR method. Supports L-shape, C-shape, and rectangular weld patterns.