How to Use the Paper Flower Petal Calculator
Without an accurate petal count, paper flower projects either run out of paper mid-build or waste material on unused cuts. Each flower type has a default petal count at a standard reference size, and when your target diameter exceeds that size, the petal count needs to scale up with the added surface area to keep the bloom looking full. Choose your flower type, target diameter, and quantity to see the petals needed per flower and the total across your project.
Default Petal Counts by Flower Type
| Flower Type | Base Diameter | Base Petal Count |
|---|---|---|
| Rose | 10cm | 25 petals |
| Peony | 12cm | 35 petals |
| Hydrangea ball | 15cm | 60 petals |
| Daisy | 8cm | 12 petals |
Frequently Asked Questions
Why do more petals get needed for larger flowers?
A bigger bloom has more surface area, so keeping the same petal density requires more petals — the count scales up with the diameter.
How were the default petal counts chosen?
They're based on common paper flower tutorials for rose, peony, hydrangea, and daisy at a standard reference size — your own design may vary.