Engineering CalculatorsEvery Volteq calculator, in one place
Electrical, power electronics, motors, battery, thermal, and mechanical — every calculator is free to use, shows its full derivation, and cites the standard it's checked against.
Electrical
Busbar Calculation
Steady-state and short-circuit conductor temperature.
Cable/Wire Sizing (EV Powertrain)
Ampacity and voltage drop for EV powertrain cables.
Creepage and Clearance
Minimum creepage and clearance per IEC 60664-1.
Harness Bundle Diameter
Bundle diameter for mixed-gauge wiring harnesses.
Harness Designer
MIL-DTL-38999 connector pinouts and wiring schematics.
PCB Trace Width
Current capacity and trace width per IPC-2221.
Skin Depth Calculator
AC skin depth from material, frequency, and geometry.
Power Electronics
Motors
Thermal
Mechanical
Beam Bending Calculator
Reactions, shear, moment, and deflection for any beam and load combination.
Bolt Pattern
Bolt-group analysis for aligned grid, rectangular-perimeter, circular (bolt-circle), or fully custom fastener patterns — direct and torsional shear via the elastic method, axial/tension via unsymmetric bending (including asymmetric custom layouts), combined with preload and checked against the bolt's proof strength.
Bolted Joint
Preload, torque, and yield checks to VDI 2230.
BoM Compare
Paste a previous and a new bill of materials straight from Excel and get a part-by-part comparison — added, removed, and up-revisioned parts highlighted automatically, with configurable columns.
O-Ring Seal
Gland design to the Trelleborg guide and AS568/ISO 3601.
Fits & Limits
Interference-fit stresses to ISO 286 and Lamé theory.
Mohr's Circle Stresses
Plane-stress transformation and Mohr's circle for a 2-D stress state (σx, σy, τxy) — principal (max/min) stresses and their orientation, maximum in-plane and absolute shear, the stresses on any rotated plane, von Mises and Tresca equivalents, and a to-scale Mohr's circle with a stress-element schematic.