Slitting Yield Calculator

Work out slitting yield instantly with clear inputs, formula shown and shareable results.

About Slitting Yield Calculator

Slitting yield is the finished width recovered as a percentage of parent width. Edge trim removes the poor-quality outer bands, and each knife consumes a small allowance. Choosing a strip width that divides the usable width nearly exactly is worth far more than shaving the trim.

Formula

Slitting yield

Strips = floor((parent width - edge trim) / (strip width + knife allowance)); yield % = strips x strip width x 100 / parent width

Worked example

With the default values below, Slitting Yield Calculator returns Strips Per Parent Roll of 8. Change any input above and every figure here is recalculated in your browser.

Inputs used

Parent Roll Widthminimum 1 mm: 1,250 mm
Finished Strip Widthminimum 1 mm: 150 mm
Total Edge Trimminimum 0 mm: 20 mm
Allowance Per Knifeminimum 0 mm: 0.5 mm

Results

Strips Per Parent Roll: 8
Slitting Yield: 96.000%
Width Lost: 50.00
Usable Width After Trim: 1,230.00

Step by step

1Values used
2Slitting yield
3Strips Per Parent Roll= 8
4Slitting Yield= 96.000
5Width Lost= 50.00
6Usable Width After Trim= 1,230.00

Assumptions and limits

The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
Figures are rounded for display to 3 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

How can yield be improved?

Order parent rolls in a width chosen to suit the strip width, or combine two strip widths in one pattern so the remainder is used. A 10 mm mismatch on a 1250 mm roll can cost a whole strip.

Why is edge trim necessary?

Roll edges carry thickness variation, coating defects and handling damage. Running them through as product generates customer complaints far more expensive than the trim.