Geotechnical software, brought up to date
Deep-foundation analysis is some of the most consequential math in civil engineering — and most of it still runs in Windows-only desktop programs whose interfaces predate the smartphone. Engineers spin up virtual machines, chase USB dongles, and copy numbers between four separate tools to do one job.
PileCalc started from a simple idea: the methods are public and well understood, so the only thing standing between an engineer and a clean, modern, browser-based tool is the will to build it carefully. We implemented the FHWA COM624P p-y method and the NAVFAC / FHWA / Vesić axial and foundation methods from scratch in TypeScript, validated the engine against LPILE and RSPile, and wrapped it in an interface that explains itself.
Engineering judgment stays where it belongs — with the engineer. Our job is to make that judgment easier, and it comes down to three commitments.
Our principles
Show the method
Every analysis exposes the governing equations and the full response profile — never a single number handed down from a black box.
Explain every input
Each field carries a plain-language definition, why it matters, and typical values. Nobody is born knowing ε₅₀.
Earn trust with numbers
We publish exactly how we validate, benchmarked against LPILE and RSPile, so you can check our work rather than take it on faith.
Built on the methods the profession already trusts
Validated against two independent codes
The engine is checked term-by-term against the RSPile theory manuals and reproduces LPILE and closed-form solutions to within a few percent. Matching two independent implementations — not one — is how you know it isn't reproducing a single vendor's quirks.
Read the validation reportRun your first analysis in the next two minutes.
Open the app, drop in a pile and a soil profile, and watch the deflected shape and moment diagram appear — with every input explained as you go.