How many sleeves do I need for 400 cards?
400 cards need 420 sleeves at the planner's default 5% spare allowance (400 × 1.05, rounded up).
| Spare allowance | Sleeves needed |
|---|---|
| 0% | 400 |
| 5% | 420 |
| 10% | 440 |
| 15% | 460 |
| 20% | 480 |
| 25% | 500 |
Computed with the planner's own rounding rules (entered count × (1 + allowance ÷ 100), rounded up). Not a live product catalog; verify sleeve stock and price before buying.
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Why round up to a full sleeve?
Sleeves are sold as discrete units, so a fractional requirement is rounded up to the next whole sleeve.
How many packs should I buy?
At a 5% allowance you need 420 sleeves: that is 9 × 50-count pack, 7 × 60-count pack, 5 × 100-count pack.