The range of tools is impressive. From basic Ohm's law to complex solar PV sizing, there is a calculator for almost every common task. It is great to see specific tools for LED resistors and battery runtime, which are often harder to find in general engineering sites. The fact that they cover both EV charger sizing and conduit fill makes it a one-stop shop for many electricians. I appreciate that the tools are free and do not require a subscription. The website is easy to navigate, and the calculators load quickly. For anyone in the electrical trade, having this collection of resources available is very convenient.
What stands out is the sheer convenience of having all these essential electrical calculators in one place. I love that I don't have to sign up or give away my email to use them. The fact that each tool shows the formula and assumptions is a game-changer for verifying results on the fly. Whether I am sizing a breaker, checking conduit fill, or calculating voltage drop, the tools are right there. The ability to switch between metric and imperial is incredibly helpful when working with different types of equipment. The site is ad-supported, which is a fair trade for the free access. It feels like a tool built by electricians for electricians, with no fluff. The guides are also a great bonus for those who need a refresher on concepts like three-phase power or Ohm's law. I am really impressed by the attention to detail and the straightforward design.
The calculators offer straightforward functionality for basic electrical conversions. Each page displays the underlying formula and assumptions, which is useful for verification. The interface is clean, though the ad-supported model is evident. It serves as a quick reference rather than a deep analytical suite.
The immediate access without requiring an account is a significant advantage for field work. The tools are available whenever needed, supporting both metric and imperial units seamlessly.
Electrical Calculators offers a solid suite of free tools for electricians and engineers. The interface is clean and the calculators are fast. From the information available, the business model is ad-supported, which explains the lack of upfront pricing tiers since there are none. This transparency is refreshing. One question remains for someone considering this service: do the free tools cover advanced three-phase loads adequately for large commercial projects? The site mentions NEC and IEC standards, suggesting robust coverage. However, without seeing specific commercial pricing for premium features or priority support, I can only rate this positively based on the free offering. The no-sign-up policy is a major plus for quick on-site checks.
News
No news yet. This is where the business shares its own updates and press.
Photos
No photos yet. Photos shared by reviewers will show up here.
Widgets
Boost your business trust by displaying a widget on your website — a simple way to convert your visitors into customers.
Electrical Calculators is a website that provides free online calculation tools for electricians, electrical engineers, and makers. The site offers a range of single-purpose calculators covering topics such as voltage drop, wire size, AWG conversion, Ohm's law, watts/amps/volts conversion, three-phase power, kVA, LED resistor, conduit fill, transformer sizing, breaker and fuse sizing, motor FLA, power factor correction, battery runtime, solar PV sizing, energy cost, resistor colour code, and fault current. The tools support both metric and imperial units, with region-tagged electrical standards applied where conventions differ. In addition to calculators, the site includes guides aimed at electrical professionals and hobbyists.