Diamond Painting Size Calculator
Convert between diamond count and finished canvas size. Find how many diamonds you need, or calculate the finished dimensions from your canvas.
Common canvas sizes reference
| Canvas size (cm) | Canvas size (in) | Approx diamonds (2.5mm) |
|---|---|---|
| 20×30 cm | ~8×12" | 80×120 = 9,600 |
| 30×40 cm | ~12×16" | 120×160 = 19,200 |
| 40×50 cm | ~16×20" | 160×200 = 32,000 |
| 50×70 cm | ~20×28" | 200×280 = 56,000 |
| 60×80 cm | ~24×32" | 240×320 = 76,800 |
About diamond painting sizes
Standard diamond painting drills are 2.5mm wide. Each diamond covers 2.5mm × 2.5mm of the canvas. To find the finished size, multiply the diamond count by the drill size. Round drills and square drills are both 2.5mm for most kits.
- A 120×160 diamond canvas with 2.5mm drills = 30cm × 40cm finished
- Add 10–20% extra diamonds per color for waste and replacements
- Square drills give denser coverage than round drills
Canvas sizes listed by sellers are usually the total canvas including blank borders, not the stitching area. The stitching area is typically a few centimeters smaller on each side.
About this Diamond Painting Size Calculator
Use this free Diamond Painting Size Calculator to get quick, accurate results directly in your browser. It is designed for everyday use with no signup, no downloads, and no account required. No signup is required, and the tool works on phones, tablets, and desktop browsers.