Engineering calculations that show their work

CalcStamp is calculation software for civil, structural, geotechnical and mechanical engineers. Type a formula such as M_u = w_u*L^2/8; CalcStamp writes it as maths, substitutes every value with its unit, works out the answer and prints a calculation sheet ready to check and stamp.

What it does

• Units everywhere - kip, ft, ksi, kN, MPa and the rest, carried through every line and checked.
• Values substituted automatically - the reviewer sees the formula, the numbers and the result on one line.
• Imports your old calcs - Mathcad Prime (.mcdx), Excel, Word and PDF calculations become live sheets.
• Tables and an Excel-style spreadsheet inside the calc, using the sheet's own variables.
• Diagrams and parametric sketches - load diagrams, frames, sections and free-body diagrams tied to variables.
• Bridge girders - influence lines, HL-93 truck, tandem and lane loads, haunched girders.
• Deep foundations with LPILE - the sheet writes the LPILE runs for every candidate pile and reads the results back.
• PDF markup - highlight, cloud, comment, stamp and measure PDFs; merge and reorder pages.
• Draft with AI - any AI assistant can write a first draft; you check every line before it becomes a sheet.
• Your files stay yours - calculations run in your browser and stay on your computer unless you save them to the cloud.

See worked examples - Coming from Mathcad? - PDF markup for engineers - Pricing - Manual