Engineering

ToolVault Engineering is intended for practical engineering calculations with visible assumptions, units and formulas. The goal is to make routine calculations faster without hiding the methodology.

Live engineering tool

Use the first live electrical calculator, then explore the wider engineering library as it grows.

Voltage Drop CalculatorEstimate voltage drop, load-end voltage, conductor loss, maximum length and required cross-sectional area.How to Calculate Voltage DropLearn resistance, DC, single-phase and three-phase voltage-drop formulas.All CalculatorsBrowse the broader ToolVault calculation library.

What you'll find here

This category is being organized around useful, searchable problems. We will add tools only when they provide a real answer, clear workflow or meaningful improvement over existing free options.

Electrical engineering

Focused tools and utilities for electrical engineering, designed for fast results and clear inputs.

Mechanical engineering

Focused tools and utilities for mechanical engineering, designed for fast results and clear inputs.

Civil & structural

Focused tools and utilities for civil & structural, designed for fast results and clear inputs.

Energy systems

Focused tools and utilities for energy systems, designed for fast results and clear inputs.

Fluid & thermal

Focused tools and utilities for fluid & thermal, designed for fast results and clear inputs.

General engineering

Focused tools and utilities for general engineering, designed for fast results and clear inputs.

Planned tool families

Examples of the kinds of problems ToolVault will cover in this category:

Voltage dropResistance-based DC, single-phase and balanced three-phase planning calculations.

Wire and cable sizing supportPlanned as part of the expanding engineering library.

Ohm's law and power calculationsPlanned as part of the expanding engineering library.

Beam, force and stress calculationsPlanned as part of the expanding engineering library.

Flow, pressure and thermal calculationsPlanned as part of the expanding engineering library.

Engineering unit conversionsPlanned as part of the expanding engineering library.

Built for global use

ToolVault is designed to work internationally wherever possible. Tools will use standard units, flexible assumptions and user-entered values rather than locking users to one country.

How tools are selected

We prioritize strong demand, limited or weak free availability, real user value and opportunities to build a better solution.

High demandLow availabilityUsefulBetter UXGlobal first

Explore another ToolVault category

Return to the main toolbox to discover calculators, converters, solar tools and new categories as they launch.

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