Pipe Offset Cut Calculator vs Pipe Offset & Cut Length

Calculate the pipe cut length between two real fittings. Pipe Offset shows the cut piece, center-to-center travel, fitting deductions and joint gaps together, so you can follow the calculation from layout to cut. Built for pipefitters and steamfitters working with metric or imperial dimensions. Choose EN/DN, ASME/NPS or copper profiles, or enter a custom outside diameter. Fitting values carry source labels: standard, catalogue, theoretical or measured. When a table does not cover your fitting, enter its measured dimensions. OFFSETS AND FITTINGS Solve simple and rolling offsets. Select fittings A and B independently at a shared angle, lay out parallel banks with cumulative marks, solve for a target run, or account for an obstacle and clearance. The drawing highlights the cut piece and shows the dimension chain. BRANCHES AND SEGMENTED ELBOWS Lay out branch connections with numbered ordinates for the branch cut and header opening. Includes centered, oblique and eccentric branches, segmented elbows and printable 1:1 PDF templates. Templates tile across A4 or Letter pages with a calibration ruler and overlap marks. Save offsets, branches and elbows as jobs and export PDF cut sheets. EVERYTHING INCLUDED Every fitting catalogue, independent A/B fitting selection, parallel banks, target-run and obstacle tools, full branch tools, segmented elbows, saved jobs and PDF exports are part of the app. No in-app purchases, no subscription. Works offline. No account or login. Saved jobs use local app storage.

Rolling offsets, solved before you cut. Pick the fitting and the size, type what you measured, and you get the cut length with the takeoff (Z in the standards) already subtracted from both ends. Mark the pipe and cut it. ■ If it will not go together, you hear it first A positive number does not mean it can be assembled. When the socket depths would overlap, the app finds it before you cut and shows what does fit — a fitting with a smaller angle, or one size down. ■ Offsets that move in two directions For a rolling offset, the app separates true offset, run, travel (center to center) and the roll angle. It works at 22.5° and 11.25° as well as 45°, and when the run you have is fixed, it can solve for the angle instead. ■ Every number carries its source Welded fittings use the bend radius R = 38.1 x nominal size (inch) with ASME B16.9 for the 45° center-to-end; PVC DWV uses the published fitting dimensions. Japanese standards (JIS K 6739 / K 6743 / K 6777, JIS B 2301) are there when you switch regions. Tap the info button next to the answer to read where a number came from. ■ Elbows that aren't built in: measure and add them Measure an elbow once and register it, and every calculation after that uses its actual dimensions. Thread engagement can be adjusted per size, one thread at a time. ■ Keep it per job, hand it over on paper Add an answer to a job and it becomes a table: piece number, cut length, fitting, roll angle. Export it as a PDF or CSV. Register a fitting and the numbers on the paper are recomputed too. ■ Works with no connection Everything is computed on the device. Job records stay on this device only — they are not stored in iCloud, so they cannot move to a new phone. What leaves the device is your support messages, plus anonymous usage statistics and crash diagnostics (Firebase Analytics / Crashlytics). ■ About pricing Cut length for a straight run between two fittings, the 45° offset in one plane, the 78 bundled fittings and the welded formula are free, always. Rolling offsets, 22.5° and 11.25°, solving for the angle, your own measured fittings and thread engagement, and job cut lists (PDF/CSV) are Pro. There is a one-time purchase, or monthly and yearly plans. ■ Units and standards Switch between inch (ASME, North America) and mm (JIS, Japan). In North America the fittings become ASME B16.9 (welded) and PVC DWV, and the 45° center-to-end is read from the published table. What the app shows is a guide for installation. The final call belongs to the job's own standards and a licensed fitter. The app does not reproduce standards documents or manufacturer catalogues — it cites the number and name of the standard, the maker and the revision, and computes dimensions from published values and formulas. Monthly and yearly plans renew automatically. You can cancel in Settings > your name > Subscriptions on your iPhone. The one-time purchase does not renew. Terms of Use: https://rainbowtree.work/app/terms Privacy Policy: https://rainbowtree.work/privacy/haikan-kirisunpo.html