Conduit bending — offsets, saddles, stubs — right alongside voltage drop, wire sizing, conduit fill and more. WireMath shows the exact formula and NEC section behind every result. Fast, offline, and honest. No second app to carry.
Conduit bending and seven calculators today — with reference charts and journeyman exam prep on the way. No more juggling a separate bending app, five calculators, and a worn-out code book.
Offsets, rolling offsets, 90° stubs, back-to-back, and 3-point saddles — with a diagram and your bender's take-up. Enter inches and fractions, not decimals, and see exactly where every mark goes and why. A built-in 360° bend check tallies your run and warns you before you cross the NEC limit between pull points.
Enter the run and load; get the exact drop and percentage. It flags the 3% and 5% limits and tells you the smallest wire that passes — so you upsize once, not twice.
Load in, conductor size out. Handles continuous loads and real-world derating for hot attics and bundled conductors, so your feed is right the first time.
Pick your EMT and wires; know instantly if they fit — and exactly how many will. No more guessing at the supply house.
Add up your conductors, clamps, and devices and check them against standard box sizes before the inspector does.
kVA to full-load amps and a suggested primary breaker — the everyday commercial math, done in a tap.
The classic power wheel. Enter any two of volts, amps, ohms, or watts and get the other two.
Keep your own running notebook of the local amendments you already know — tagged by town and code article. WireMath quietly surfaces the right note on the right calculator, so you catch it before the inspector does. Your notes, your phone, nobody else's.
A wrong answer isn't an inconvenience in this trade — it's a failed inspection or a fire. So we built WireMath to be checkable, not just fast.
Every calculator is verified against the same worked examples used in journeyman exam prep. The math isn't a black box — it's checked against answers electricians already trust.
Tap any result to see the full formula, the substituted numbers, and the NEC section it comes from. Verify it against your own code book in seconds — or learn the method as you go.
WireMath is a calculation aid, not a rubber stamp. It reminds you to confirm against your local amendments and your AHJ, because it can't see your actual installation — and it never pretends otherwise.
No account. No ads. No analytics. No tracking. WireMath makes zero network requests — every feature works in airplane mode, and nothing you enter is ever sent anywhere.
A promise in plain language — and every part of it is something WireMath actually does, not marketing.
WireMath will never use AI to answer a code question. Every number is worked out the honest way, shows its work, and points you to the NEC section it came from — so you can check it yourself. When a wrong answer means a failed inspection or a fire, "the computer guessed" isn't good enough. Ever.
Your jobs, your notes, your calculations live on your phone — not on our servers. We can't see them. We don't want them. We will never sell them.
You'll never get a full-screen ad in the middle of a calc while you're up on a ladder. No pop-ups, no upsell banners, no nonsense.
Basement, crawlspace, middle of nowhere — it just works. And there's no subscription trap and no re-buying the app after every update.
The questions any careful electrician would ask before trusting a tool on the job.
Every calculator uses the standard published formulas and values and is tested against worked examples from journeyman exam-prep material. The conduit bending uses exact trigonometry — the same 1 ÷ sine-of-the-angle the field charts are built on — so the marks are as precise as your tape. You can also tap "show the work" on any result to check the method and the NEC section yourself. As with any tool, you're responsible for verifying the final answer against your code edition and local amendments — and WireMath makes that easy.
No — and it never will. Code questions are answered with real formulas that show their work and cite the NEC section, not an AI's best guess. When a wrong answer means a failed inspection or a fire, you deserve math you can check, not a black box.
Yes. Offsets, rolling offsets, 90° stubs, back-to-back bends, and 3-point saddles — each with a diagram, your bender's take-up, and inches-and-fractions input (no decimals). It shows you where every mark goes and the math behind it. There's also a 360° bend check that tallies the total bend in a run and flags it before you exceed the NEC limit (358.26) between pull points — so the wire pull doesn't fight you.
Completely. WireMath is built to run 100% offline — in a basement, a mechanical room, or the middle of nowhere. It never needs a connection, because it never sends your data anywhere.
You can try every calculator free in your browser right now. The mobile apps are launching soon — pricing will be simple and fair, with no ads and no surprise data-selling, ever.
Yes — the entire app, in natural jobsite Spanish that keeps the English trade terms crews actually use. Switch languages with one tap.
No, and we're upfront about that. WireMath is an independent tool. NEC and National Electrical Code are registered trademarks of the NFPA; we cite section numbers for reference but don't reproduce the code text. Always defer to the official NEC and your inspector.
Open WireMath in your browser and run a real calculation from your last job. If it doesn't earn a spot on your phone, you've lost nothing.
Open WireMath free"I built WireMath because the tools electricians actually rely on shouldn't be clunky, cluttered with ads, or a mystery box you have to take on faith. Every number in this app can be checked — that's the whole point. If something's ever off, email me directly."
— The WireMath team, support@wiremath.app