Free Online Calculators for Electrical and Mechanical Engineering

There are quite a few reasons why, whether you are a professional, student, or mere enthusiast of electrical and/or mechanical engineering, you might turn to the various free calculators available online of relevance to these fields.
These disciplines, after all, are associated with all manner of complex calculations, in relation to such concepts as Ohm’s Law, impedance, voltage drop, beam deflection, and thermodynamics.
The Importance of Free Online Calculation Tools in Engineering
While it is crucial to be able to understand and apply the pertinent formulas, if you were to depend on manual calculations alone for your engineering projects, there could be a high risk of human error creeping in.
Any such mistakes could have serious consequences, such as:
- In the case of electrical engineering projects, such risks as electrocution, fire, equipment overloading, and/or catastrophic failures
- In the case of mechanical engineering projects, such risks as structural collapse, mechanical breakdowns, human injury, and/or inefficient performance.
5 Trusted Sources of Free Online Calculation Tools for Engineers
So, you can probably begin to see how well-chosen free online calculators can be important for verifying the outcomes of manual engineering calculations.
With this in mind, we have below set out some of the most reputable and reliable sources of such free calculators online.
- Calculator Edge (www.calculatoredge.com)
Whether you find yourself needing to convert pounds per square inch (PSI) to bar, turn Celsius into Fahrenheit, or calculate distance from speed and time, this is a user-friendly and straightforwardly designed site that will almost certainly present you with the right tool.
- CalcTown (www.calctown.com)
As is the case with Calculator Edge, CalcTown hosts hundreds of calculators that are useful for all manner of engineering applications. Tools are available that touch on the likes of alternating current (AC) circuits, semiconductor devices, capacitor calculations, spring calculations, and fluid mechanics.
- RS (www.rs-online.com)
A complete set of online engineering calculators and tools is offered by this well-known electrical component supplier. The range encompasses the likes of an Ohm’s Law calculator, LED resistor value calculator, inductance unit conversion tool, pressure unit conversion tool, length conversion calculator, and more.
- Ncalculators.com (www.ncalculators.com)
It might look like its interface was last updated in the 1990s, but this site is a simple and easy-to-use resource for undertaking calculations in relation to such topics as Ohm’s Law, battery life, welding heat input, and bending stress. Step-by-step information is provided for clarity.
- Engg Tools (www.enggtools.online)
Engg Tools makes available all manner of basic calculators sorted into categories. So, whether you expect to need calculators related to thermal and fluid systems, solid mechanics and materials, control and instrumentation, and/or power and energy engineering – to cite just some categories – this is a platform you are likely to find useful.
It Turns Out There a Lot of Things You Can Still Do for Free!
In a world like our present one in which there are intensifying cost pressures on mechanical and electrical engineering projects, if you are a student or professional in these fields, you are likely to feel reassured that at least a variety of helpful free calculators exist.
The best such calculation tools are designed with the needs of all manner of engineering tasks and projects in mind. They also tend to be mobile-friendly, in addition to being accompanied by resources to help people of a range of skill and experience levels.
Whatever project you are undertaking and for which free online calculators could be invaluable, we wish you the best with your efforts. Don’t forget to always undertake manual calculations to help verify the accuracy of whatever tools you use.