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Pipe Wiz · Support · Privacy

Pipe Wiz: Fitter Calculator

Pipe offset numbers, big enough to read on the job.

Pipe Wiz is an iPhone calculator for pipefitters, from Kaivora LLC. Rolling offsets and simple offsets are free. Pro adds cut lengths, elbow take-outs and four more tools.

Type the rise, roll and angle. The travel shows straight away, rounded to the fraction on your tape, with “strong” or “light” when the true number is a hair over or under the mark.

Download on the App Store For iPhone. Rolling offset and Simple offset are free.
The Rolling offset screen: a drawing of the offset, angle 45 degrees, roll 18, rise 12, travel 30 5/8 inches, and a large keypad.

Free tools

Rolling offset

Rise, roll and angle. Gives the travel, true offset and run.

Simple offset

One plane, any angle up to 90°. Gives the travel and run.

  • The math is shown with every result, so you can check it.
  • Inches with fractions (1/8, 1/16 or 1/32), feet and inches, or millimeters.
  • A drawing that changes with your numbers.
  • Free, no payment needed, and no account. The free version stays free.

Pro tools

Cut length

Center to center, less the fitting take-outs and weld gap. Use an offset result in Cut length with one tap.

Elbow take-out

Standard take-outs for butt-weld elbows: long radius 90° and 45° in sizes 1/2 in to 20 in, and short radius 90° from 1 in.

Parallel offset

Bend spacing for pipes side by side.

Miter cut

Cut angle and cutback for a two-piece miter.

Triangle solver

Any right triangle from two sides.

Saved jobs

Keep your numbers by job name, on your iPhone.

The screens

The Result screen: travel 30 5/8 inches marked light, the true offset, the same offset at other angles, and the math written out.
Result, with the math Free
The Home screen: the last result, the two free calculators, the five Pro tools and Saved jobs.
Home: every tool in one list
The Cut length screen: center to center 48 inches, two 6 inch take-outs, cut the pipe to 36 inches.
Cut length Pro
The Elbow take-out screen: pipe size 4 inch, 90 degree long radius, take-out 6 inches, from ASME B16.9.
Elbow take-out Pro

Plans and prices

Rolling offset and Simple offset are free. The Pro tools need a plan:

Weekly $0.99 / week Renews every week
Monthly $2.99 / month Renews every month
Yearly $19.99 / year Renews every year
Lifetime $39.99 once Pay once, never renews

These are the United States prices; they differ by country. Payment is made through Apple, in the app. Weekly, Monthly and Yearly renew until you cancel; Lifetime is paid once. Cancel any time in iPhone Settings > your name > Subscriptions. There is no free trial.

Built for the job

  • Large keys for gloved fingers.
  • The calculators work with no signal. Buying or restoring a plan needs a connection.
  • No ads in the app and no account.

Check every number

Results are rounded. Elbow take-outs are for standard ASME B16.9 butt-weld fittings; for other fittings, use the maker’s table or type your own take-out. Always check a result against your own layout before you cut.

Your information

Your numbers and saved jobs stay on your iPhone, unless you include your last calculation in a feedback message. Purchases are handled by Apple and a service called Superwall, which receives an ID for your copy of the app, details of your iPhone, your country and city worked out from your internet address, and which plan you unlock. It is not sold, and it is not used to show you ads. The full list is in the privacy policy.

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