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The Engineering Toolbox
The Engineering Toolbox offers tools and information for engineering and design.
About The Engineering Toolbox
The Engineering ToolBox is a website offering free tools, calculators, and information resources for engineering and design of technical applications. It covers areas including fluid mechanics, material properties, HVAC systems, electrical engineering, acoustics, and hydraulics. Resources include reference data, formulas, tables, charts, and calculations for tasks such as finding physical properties, converting units, and designing systems like heating and water distribution.
Key features
- Calculators for engineering and design tasks, including lifting force and angle measurements
- Reference data for density, viscosity, thermal conductivity, and material properties
- Unit conversion resources for common engineering and technical calculations
- Sections covering fluid mechanics, HVAC, electrical engineering, acoustics, and hydraulics
- Tables and charts for air properties, psychrometrics, wire gauges, and friction coefficients
- Technical documents on pipe expansion, water thermal properties, and Poisson's ratio
Best for: Engineers, designers, and students who need free reference data, calculators, and conversion tools for technical applications.
Good for
- Provides free tools and information for engineering and design
- Covers multiple technical fields, from fluid mechanics to HVAC and electrical engineering
- Includes calculators, reference tables, charts, and unit conversions for common tasks
The Engineering Toolbox at a glance
- Website
- engineeringtoolbox.com
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
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The Engineering Toolbox FAQ
Is The Engineering ToolBox free to use?
The homepage describes it as providing free tools and information for engineering and design of technical applications.
What engineering topics does it cover?
It includes fluid mechanics, material properties, HVAC systems, electrical engineering, acoustics, hydraulics, and other technical areas.
What kinds of calculations or references are available?
The site includes calculators, unit conversions, physical property data such as density and viscosity, and reference tables and charts.
Is something wrong or out of date?
Tell us and an editor will check it.
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