Engineering
Engineering Calculators
Electrical and mechanical calculators for circuit work, power budgeting and running-cost estimates.
0 free calculators in this category
All engineering calculators
About engineering calculators
The electrical tools solve Ohm’s law and the power triangle in every direction, size resistors for LEDs and voltage dividers, and convert between watts, amps and volts for both DC and single- or three-phase AC with an explicit power factor rather than an assumed one.
Energy-cost calculators turn a device’s rating and duty cycle into a bill figure using the tariff you enter. As with everything else on the site there is no live pricing feed, so the number is exactly as accurate as the rate you supply.
Engineering calculator questions
Are the engineering calculators free?
Yes — every engineering calculator on CalcVerse is free to use, with no sign-up and no limit on how many calculations you run.
Do I need to install anything?
No. These are ordinary web pages. They load in any modern browser on desktop, tablet or phone and need no plugin, app or extension.
Where does the calculation happen?
Entirely in your browser, in JavaScript. Nothing you enter is transmitted to a server, which is why the tools keep working if your connection drops.
Can I see the formula being used?
Yes. Every calculator page shows the formula, defines each symbol, and prints the substituted working alongside the result so you can verify it by hand.