OffsetKit: Pipe Calculator

Calculate simple and rolling pipe offsets before layout or fabrication. Enter field measurements, choose a bend angle, and get travel, run, shrink, true offset, and rotation with labeled diagrams.

Use feet, inches and tape fractions, or switch to millimetres. OffsetKit works entirely offline and has no ads, account, analytics, tracking, cloud sync, or internet permission.

Built for clear field entry:

- Simple offsets with travel, run, and shrink

- Rolling offsets with true offset, travel, run, and rotation

- Imperial tape fractions or metric measurements

- Common bend-angle shortcuts plus manual angle entry

- Labeled diagrams and visible calculation details

- Optional saved calculations with your own short names

- Copyable results

- Light, dark, and high-contrast display options

Need a straight connector length? Open Connector deductions and enter your own start takeout, end takeout, start gap, and end gap. Each value is treated as a deduction along the diagonal connector. OffsetKit subtracts only the values you enter and keeps the underlying offset geometry visible.

Your work stays on your device. Saved calculations and settings are stored locally, and backups are disabled.

Geometry only. Verify inputs, fitting deductions, and field dimensions before cutting.

OffsetKit does not apply fitting tables, pipe schedules, bend-radius development, pressure rules, welding preparation, building or trade codes, or fabrication tolerances. Travel is the diagonal centreline distance between bend centres and is not automatically the pipe cut length. Verify every input, deduction, field dimension, and shop practice before cutting or installing material.