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Physics, not guesswork
First-principles models with visible assumptions, intermediate values, and governing equations.
Engineering Calculators Engineering intelligence
Engineering decisions,
made visible.
High-fidelity calculators for teams designing electrified systems. Model real constraints, interrogate every step, and turn first-principles analysis into work ready for review.
SOLVE / VERIFY / EXPORT
MODEL_01
MODEL STATUS VALIDATED
The platform
Move faster without
losing the engineering.
Volteq sits between a quick online calculator and a bespoke simulation. Fast enough for the design loop; rigorous enough to expose how the answer was reached.
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Traceable by default
Methods reference recognised standards and validation examples, so every result has a defensible basis.
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Made for iteration
Move from an early estimate to a reviewable design record without rebuilding another spreadsheet.
Inside the toolkit
One environment.
Multiple domains.
Purpose-built models for the calculations that connect electrical, thermal, and mechanical design.
ElectricalBusbar thermal modelling
Power electronicsDC-link capacitor sizing
MechanicalBeam response analysis
Worksuite · Virtual powertrain
Model the whole powertrain, once.
Define your motor, battery, and inverter as reusable profiles, bundle them into a powertrain, and every calculator pulls the shared numbers automatically—no retyping the same DC voltage, current, and switching frequency across tools.
Define components
Save each motor, battery, and controller once—the parameters straight off the datasheet, entered a single time.
Bundle a powertrain
Group one of each into a named system, plus system-level details like the DC cable length.
Open pre-filled
Jump into DC-link, cable, MOSFET-loss, magnetics, and motor calculators with the right values already in place.
Iterate as one system
Edit a component once and the change flows through every linked calculation—no stale copies, no re-entry.
Coverage
Designed around the system—not the silo.
Explore the linked decisions behind modern EV, energy, and electromechanical products.
01Electrical
Busbars, cable sizing, insulation, PCB traces
↗02Power electronicsSiC losses, DC-link capacitors, magnetics
↗03ThermalHeatsinks, exchangers, temperature rise
↗04MechanicalBeams, joints, seals, fits, stress
↗05Motors & controlTorque, power, speed, Id/Iq vectors
↗06Battery systemsPack architecture, capacity, voltage sag
↗From question to evidence
Define
Set geometry, materials, boundary conditions, and operating cases.
Solve
Run a transparent engineering model with units carried through every step.
Interrogate
Review derivations, sensitivities, diagrams, and validation references.
Document
Save the calculation or export a clear, branded engineering record.
Pricing
Serious tools.
Simple access.
The engineering calculation stays free. Premium adds continuity, collaboration, and presentation.
Monthly
$12/ month
- ✓ PDF export with your company's branding
- ✓ Save and reload calculations
- ✓ Every advanced / custom-input mode
- ✓ Full standards reference tables
Save 25%
Annual
$108/ year
$9/month, billed annually
- ✓ PDF export with your company's branding
- ✓ Save and reload calculations
- ✓ Every advanced / custom-input mode
- ✓ Full standards reference tables
Best value
Lifetime
$249one-time
- ✓ PDF export with your company's branding
- ✓ Save and reload calculations
- ✓ Every advanced / custom-input mode
- ✓ Full standards reference tables
Start building