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SpecCalc Hub

Name: SpecCalc Hub
Availability: OnlineOnly
Author: Temur Khasanov

Free engineering calculators with transparent formulas

web app·free

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Launched

May 27, 2026

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About

What is SpecCalc Hub?

Free web calculators for energy, solar, battery runtime, UPS runtime, EV charging cost, voltage drop, wire-size estimates, Ohm's law, voltage divider, and resistor calculations. Each calculator shows formulas, assumptions, limitations, and result logic so users can understand the estimate instead of relying on a black box.

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Developer

Temur Khasanov

Details

Category: web app
Pricing: free
Launched: May 27, 2026
Views: 0

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