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08 / Fold & Run
Booklet envelope clearance checker
Check flat booklet dimensions against measured usable envelope space.
Your measurements
Use the units shown. Your measurements stay in this browser.
The plan
Your results
How the calculation works
A fit needs booklet width + 2 × clearance ≤ envelope width, and the same for height; also check a 90° rotation.
Before you use the result
Use internal usable measurements. Flat fit only: booklet thickness, envelope seams and flap shape can reduce real clearance.
A worked example
Booklet width (mm): 148 · Booklet height (mm): 210 · Envelope usable width (mm): 162 · Envelope usable height (mm): 229 · Required clearance per edge (mm): 3.
- Fits unrotated
- Yes
- Fits rotated
- No
- Unrotated width spare (mm)
- 14
- Unrotated height spare (mm)
- 19
Results display up to three decimal places. Rounding happens only for display, except where the method explicitly counts whole items.