Multiply width × height, then multiply by a fill ratio: about 0.6–0.75 for sprites with a see-through background, 0.95 for full squares. Buy 10% spare on every color and 20% on the single largest one.
The Formula
Bead count = width × height × fill ratio × (1 + spare)
The fill ratio is the part people skip, and it is the reason following the count still leaves you short. A 29×29 board has 841 positions. A character sprite with a transparent background uses perhaps 55–75% of them; a framed square uses nearly all.
Fill Ratio by Design Type
| Design type | Fill ratio | 29×29 needs | 58×58 needs |
|---|---|---|---|
| Rectangular logo / frame | 0.95–1.0 | ~800 | ~3,200 |
| Solid character on transparent | 0.6–0.75 | ~570 | ~2,270 |
| Thin outline / line art | 0.25–0.35 | ~250 | ~1,000 |
| Text / letters | 0.35–0.5 | ~360 | ~1,430 |
| Scattered icons on one board | 0.3–0.45 | ~320 | ~1,280 |
These ranges come from counting real layouts, not from guessing. When in doubt, generate the design first — the tool's preview shows exactly how many beads each color needs before you commit to buying.
Step-by-Step: Build a Shopping List
1. Fix the design size first. Decide 29×29 or 58×58 before counting anything, because changing size later invalidates the whole list.
2. Count per color, not per project. The total is trivia; the per-color numbers are what you buy. A design can need 1,400 beads with 900 of them in one background color.
3. Apply spares per color. Add 10% to every color, and 20% to the single largest one — that is the color you will spill, misplace, and drop under the couch.
4. Convert to bags. Midi beads are sold in 1,000-count bags, 6,000-count jars, or 500-count single-color bags. Round up per color; nobody sells 137 reds.
5. Sanity-check the total. If the math says a 29×29 sprite needs 2,300 beads, the design is not what you think it is. Recheck the size assumption before ordering.
Worked Example: 29×29 Character Sprite
- Board: 29×29 = 841 positions
- Transparent-background sprite at fill ratio 0.7 → about 590 beads
- Colors: body yellow 300, black outline 90, cheeks red 40, brown ears 90, white eyes 70
- Spares: +10% each, +20% on the 300-bead yellow → yellow 360, black 99, red 44, brown 99, white 77
- Total bought: about 679 beads, dominated by one color
That is one 1,000-count multi bag for the main color plus partial bags for the rest — or a single 6,000-count jar that covers this project and four more.
Planning Multi-Project Batches
For a party or a batch of gifts, count all designs first, then merge the per-color lists before rounding up to bags. Three 15×15 heart coasters that each need 40 reds is 120 reds, not three separate purchases. Merging the list is where bulk buying actually saves money, and it is the core trick in the bead party planning guide.
The Two Rules That Prevent Shortages
- Never plan to use every bead you own. A design needing 830 of your 841 beads will fail, because you will drop some and find a few warped ones.
- Buy the background color in bulk. It is always the biggest single number and the color you will need again immediately.
FAQ
How many beads are in a standard bag?
Midi: 1,000-count bags are the retail standard, and single-color bags are usually 500 or 1,000. Mini: 1,000-count bags or mixed trays. Maxi: 200–500 counts.
Does the generator tell me the bead count per color?
Yes. After generating a pattern, the color list shows the exact bead count for each color in the design, so that list becomes your shopping list. Try it in the photo-to-pattern tool.
How long does placing 1,000 beads take?
Roughly 45–70 minutes for an adult working steadily, more for kids. Time scales linearly with bead count rather than board size, which makes it easy to schedule sessions for a workshop.
Is it cheaper to buy a big mixed jar or single colors?
Mixed jars while starting out, single colors once you know your palette. The break-even arrives around your third project, when background colors start repeating.