"Two 45s to shift it 200 mm. How long do I cut the piece between them?"
— This is the tool for answering that on site. Figure it before you cut.
■ Four calculations
[Offset]
For a two-fitting offset: the travel (centre to centre), the run, and the length of pipe you actually cut. It subtracts the fitting takeout, so the cut length is the number you mark. Angles 45°, 30°, 60°, 22.5°, 11.25°, or type your own.
[Rolling offset]
When the run both rolls and rises: the true offset and the roll angle. The angle is shown measured from the horizontal AND from the vertical, so you do not roll it the wrong way.
[Mitered pipe]
The cut line as a table of ordinates: distance around the circumference and depth from the base line. You choose how many stations.
[Lateral / fishmouth]
The branch cut for a lateral or a tee, given the same way — ordinates from a base line.
■ What is different here
• **A drawing on every screen that maps one-to-one to the input boxes.** You can see which dimension is being asked for before you type it.
• **No standards tables.** You enter the OD and the takeout you measured yourself, so it fits whatever material and maker you have in your hand.
• **No network.** It works the same on a site with no signal.
• The sheet — drawing and numbers — can be saved as an image and shared.
■ Please read this
**The drawings on screen and in the saved image are NOT to scale (not 1:1).** They are scaled to the width of the page or the screen. They are not meant to be wrapped around a pipe and traced. **What you transfer to the pipe are the figures printed below the drawing.**
Results are theoretical values from the dimensions you enter. Pipe OD and wall tolerance, how it is cut and bevelled, the real size of the fittings, and weld shrinkage all change the figures on site. A cut cannot be undone — always check on the actual material before cutting. This app does not decide compliance with any law, standard or in-house specification.
■ Also
• Eight languages (Japanese, English, Spanish, Portuguese, French, German, Korean, Chinese)
• Switch between mm and inches
• Dark mode
• Ads are a banner at the top only. **No full-screen ad ever interrupts a calculation.**
• Watch one video and ads go away for 60 minutes. A one-time purchase removes them for good.
• **The purchase removes ads and nothing else.** All four calculations, the drawings, the image export and all eight languages are there whether or not you buy.
Measured takeout in; cut length and ordinates out. Drawings, offline.