Pipe Offset & ISO Calculator

1.Rolling / simple offset 2.Cut length + fitting takeoff 3.Build spool + ISO sketch 4.Export PDF/PNG 5.Offline, free, no login Keep pipe layout calculations and spool notes together, even when there is no connection. Pipefitter Calculator: ISO helps pipefitters work through offsets, fitting allowances and cut lengths, then organize the results in local projects. OFFSET CALCULATIONS • Simple and rolling offsets with clear diagrams. • Work from a known elbow angle or advance. • Review travel, run, fitting takeouts, weld gaps and finished cut length. • Switch between millimeters, inches and fractional feet-and-inches. BUILD A SPOOL • Assemble a single pipe route from straight pipe and elbows. • Inspect the route in an isometric sketch. • Save projects on your device and return to them later. • Review component details and validation messages as you work. WORKSHEETS AND FIELD CHECKS • Preview a worksheet with an ISO sketch and cut list. • Export PDF or PNG through the Android file picker. • Use direct-cut and parallel-cutback calculations for additional field checks. FITTING DATA • Browse built-in fitting records and their source information. • Create custom fitting records and import or export them as CSV. • Use measured fitting data when the required record is not available. MADE FOR OFFLINE USE No account is required. Projects, dimensions and settings are stored on your device. Files leave the app only when you choose to export or share them. The interface supports English, Simplified Chinese, Spanish, Brazilian Portuguese, Indonesian, German and French. All current features are available without a purchase in this release. BEFORE FABRICATION This app is a calculation aid, not an approved fabrication drawing. Independently verify dimensions, fitting data, weld gaps and site conditions before cutting or installation. Support and data corrections: niexg1991@gmail.com