The pipefitter’s calculator, drawn in 3-D.

• Simple, rolling, parallel, mitered and compound offsets, at 45°, 22½°, 30°, 60° or any angle you type
• Rolling offsets give the true offset, the travel and how far to turn the flange off two-holed
• Turn on catalog fittings and the straight pipe length is worked from the ASME B16.9 take-off and the weld gap you enter. Every result says what it includes; a result without a take-off is labelled centerline, never a cut length

• Every offset, miter, branch and trimmed elbow is drawn as a real 3-D pipe with its dimensions: ISO, front, top, side or free orbit
• Tap a result and the piece it belongs to lights up on the model

• Miter: cut angle, piece lengths, cutback and the wrap-around cut line
• Branch & Saddle: the template, the hole to cut and the joint, at any branch angle
• Elbow Trim: cut a factory elbow down to an angle no fitting is made in
• Cut Line Template, Stations, Take-Off, flange Two-Holing and Bolt-Up order

• Spool: one fabrication from your saved calculations, with its cuts, fittings, welds and the weight of its pipe and bends
• Cut List: every length nested onto stock with the saw kerf. Which pieces come off which stick, what is left, and whether the stick count is the fewest possible

• ASME B36.10M and B36.19M pipe tables: OD, wall, ID, area, volume and weight for every schedule
• ASME B16.9 butt-weld and B16.11 socket-weld and threaded fittings; B16.5 and B16.47 flanges with their drilling
• Suggested support spacing from ASME B31.1
• Every record names its standard and edition, and can send its values straight into a tool

• Fraction calculator and decimal-to-fraction conversion, unit converter, slope and grade, triangle solver, drawing scale, pipe volume, pipe weight
• Barlow: the pressure a pipe wall takes to its grade’s yield or tensile strength
• Angle Finder: lay the phone on the pipe, hold the reading and send it into an offset

• Jobs keep a project’s calculations together; reopen any one with the inputs it was saved with
• PDF calculation sheets with the drawing, inputs, results, assumptions and references; Job PDF and CSV; plain text
• Siri and Shortcuts answer a simple or rolling offset and a pipe size; saved calculations and Jobs show up in Spotlight

Measurements in fractional inches (12 7/16), feet and inches, or millimetres with the metric setting. Fraction precision from 1/8 to 1/64.

Every tool is in the download. No subscription, no in-app purchases, no account, no ads. Works completely offline, and nothing you enter leaves your phone.