Launching today
MechanixCalc
50 ISO/ASME engineering calculators with shareable reports
11 followers
50 ISO/ASME engineering calculators with shareable reports
11 followers
MechanixCalc runs the actual governing standards — ISO 6336 gears, ISO 281 bearings, VDI 2230 bolts, DIN 743 shafts, ASME VIII vessels, EN 1993-1-8 welds and more — in your browser. What's different: every one of the 50 tools cites its standard, shows the formula and a worked example, and exports a branded PDF report a reviewer can follow. It's the bridge between a free single-answer calculator and $10k desktop software like KISSsoft/MITCalc. No install; free 30-min preview, no sign-up.
Hi Product Hunt 👋
I built MechanixCalc because everyday mechanical calculations sit in an awkward gap: free online calculators are "simplified estimates" you can't put in a design file, while the professional desktop software (KISSsoft, MITCalc) is expensive and install-bound.
MechanixCalc runs the actual governing standards (ISO 6336 gears, ISO 281 bearings, VDI 2230 bolts, DIN 743 shafts, ASME VIII vessels and more) right in your browser, shows the worked method, and gives you a shareable PDF report — for sizing, checking and quoting before you commit to a desktop seat. 50 tools, no install.
Try any tool free for 30 minutes, no signup. I'd love your feedback on which standard or tool to add next!
The worked example and standard citations are exactly what makes this useful, nice angle. One thing I'd love is a unit system toggle that stays consistent across all 50 tools, so I can flip between metric and imperial mid-project without re-entering inputs in each calculator. Would make the PDF reports way easier to share with our US-based reviewers.
@gnejljs This one made me smile - it's exactly what I'm rolling out right now. An SI ⇄ Imperial toggle across the whole suite, applied consistently so you switch once and every tool and the PDF report follows, instead of re-entering units per calculator. It's already live across a growing set of tools and rolling out to the rest. Your US-reviewer use case is precisely the driver - thanks for validating it.
Would love to see a saved-history tab where previous calcs can be reopened and edited without retyping inputs, plus a side-by-side compare of two results. That would save a lot of time when checking design iterations against the same standard.
@erdem532247 Good news on both - you can already save calculations to a Workspace and reopen them, and there's a Comparison mode for two results side-by-side. The piece you're pointing at - reopening straight into an editable input set so you tweak-and-recompare without retyping - is a sharp refinement I'm adding to the list. That design-iteration loop is exactly what I want to nail.
honestly looks super useful, especially for quick checks without booting up KISSsoft. one thing that would make it way better is letting users save a project with multiple linked calculations so you can see how changing a gear ratio downstream affects the bearing life in the same shaft system
@ld_ilayda57147 Love this - "quick checks without booting up KISSsoft" is exactly what I optimized for. Good news on part of it: you can already save a project with multiple calcs together in Workspaces. The part you're describing - change a gear ratio upstream and watch it ripple to bearing life in the same shaft system - is precisely where I'm heading. I've been building that cross-engine chaining on the CAD-integration side, and bringing that "system model" into the app so one change flows downstream is the next big step. One of the sharpest feature asks I've had today - thank you. 🙏
ran the ISO 6336 gear calc and appreciated seeing the actual standard paragraph cited right next to the formula, not just a number spit out.
@doukanehip That's the core idea - the standard should sit right next to the number so you can trust it and defend it in a review, not buried or assumed. Really glad it landed. If there's a standard or detail you'd want cited more explicitly, tell me and I'll look at it.
Finally something that actually shows the formulas and cites the standards instead of just spitting a number. Tried the gear tool and the worked example saved me from digging through ISO 6336 for an hour.
@baruknehir14881 Thank you - this is exactly the reaction I hoped for. "Here's the actual method, not just a number" is the whole reason I built it. If you ever hit a calc where the worked example or a citation could be clearer, tell me - that's what makes it better. 🙏
ran the ISO 6336 gear calc and being able to see the actual formula and standard clause next to the inputs is genuinely useful for sanity-checking. nice that the PDF report cites everything too, makes handoff to a reviewer way easier than a screenshot.
@alperkanepsq7s Thank you - "easier to hand off than a screenshot" is exactly why I built the report the way I did. A reviewer shouldn't have to reverse-engineer your numbers: the inputs, the formula, the standard clause and the verdict should all travel together in one document. Really glad the sanity-check angle lands - that everyday "can I trust this number and defend it" moment is the one I care most about. 🙏