Card Making Calculator
Calculate cut size, score line, envelope size, and layer fit for any handmade card.
Card Dimensions
Presets (finished card size)
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Cardstock Cut Size
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Score Line Position
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Interior Panel Max
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Matching Envelope Size
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Layer Fit Calculator
Add up to 5 layers. Each layer should be smaller than the card with at least 1/8" bleed on all sides.
Standard Card and Envelope Sizes
| Card Name | Finished Size | Cardstock Cut Size | Envelope |
|---|---|---|---|
| A2 | 4.25 × 5.5" | 8.5 × 5.5" | 4.375 × 5.75" (A2) |
| A6 | 4.625 × 6.25" | 9.25 × 6.25" | 4.75 × 6.5" (A6) |
| A7 | 5.25 × 7.25" | 10.5 × 7.25" | 5.25 × 7.25" (A7) |
| 5 × 7" | 5 × 7" | 10 × 7" | 5.25 × 7.25" (A7) |
| Square 6 × 6" | 6 × 6" | 12 × 6" | 6.5 × 6.5" (Square) |
About Score Lines
The score line is placed at the center of the cardstock's long dimension (for a side-fold card) or at the center of the height (for a top-fold card). Scoring before folding prevents cracking — use a bone folder and a ruler on the inside of the fold.
Bleed Margins for Layers
Interior layers (mats, panels, photos) should be at least 1/8" (3mm) smaller than the card front on all sides, creating a visible border. For a balanced look, a 1/4" border on all sides is common for A2 cards. The calculator flags layers that are too large or at risk of overhanging.