Free Brochure Size Calculator
Calculate the correct brochure dimensions for any fold type. Choose a preset or enter your flat size, and get the panel sizes and required pixels.
📘 Calculate Brochure Size
Panel Size
99 × 210 mm
Flat size: 297 × 210 mm • Image: 3508 × 2480 px
⚡ Common Brochure Presets
📊 Common Brochure Sizes in Pixels
| Brochure | Flat Size | @ 300 DPI (flat) |
|---|---|---|
| A4 Tri-fold | 297 × 210 mm | 3508 × 2480 |
| A4 Bi-fold | 297 × 210 mm | 3508 × 2480 |
| A3 Tri-fold | 420 × 297 mm | 4961 × 3508 |
| A3 Bi-fold | 420 × 297 mm | 4961 × 3508 |
| Letter Tri-fold | 279 × 216 mm | 3295 × 2551 |
| A5 Bi-fold | 210 × 148 mm | 2480 × 1748 |
📘 Understanding Brochure Folds
- Bi-fold (2 panels): Single fold — 2 equal panels. Simple and elegant.
- Tri-fold (3 panels): Two folds — 3 panels. Most common brochure format.
- Z-fold (4 panels): Zig-zag fold — panels alternate direction.
- Gate fold: Two outer panels fold inward, meeting at centre.
Pro tip: For tri-fold brochures, make the inner folded panel 1–2mm narrower so it tucks neatly inside.