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Leather Strap Cutting Yield Calculator

Enter the usable width of the leather, the width of one strip and the width lost at each cut. The page counts how many parallel strips fit, shows the width left over, and draws them. It treats the piece as a simple width: flaws and the shape of a hide are not considered.

Strips across the width

15

22 mm left over · strips cover 90 % of the width

A one-dimensional theoretical maximum across a width. Flaws, the shape of a hide and the length of the strips are not considered.

How it works

  1. Enter the usable width across which you will cut, and pick a unit.
  2. Enter the width of one strip and the width lost at each cut.
  3. Read the number of strips and the width left over.
  4. Check the drawing and copy the result.

What people use it for

  • Cutting straps from a panel

    See how many 30 mm straps fit across a 500 mm panel before you cut.

  • Choosing a strip width

    Compare 28 mm and 30 mm and see the leftover width each time.

  • Planning a batch

    Know the number of strips per row and divide your order by it.

Questions

What is the formula?
Strips = floor((width + cut loss) ÷ (strip + cut loss)). The width used is strips × strip + (strips − 1) × cut loss, and the leftover is the width minus that. A cut loss of 0 means the strips touch.
Is this the yield of a hide?
No. It is a one-dimensional theoretical maximum across a width. A real hide has irregular edges and flaws, the strips have a length that must fit, and nesting pieces of several sizes changes the result. The page does not optimise any of that.
What cut loss should I enter?
The width your knife or cutter really removes, which you can measure on a test cut. The page does not suggest a value.
What does the percentage mean?
The width of the strips divided by the width of the piece. The cut loss and the leftover are not counted as used.