Total Drills
76,613
Completion Time
255 hrs
Est. Days
128 days
At 2 hours per day, completion ranges from 48 to 255 days
| Size | Drills | Hours* |
|---|---|---|
| 20 × 30 cm | 3,563 | 12 hrs |
| 30 × 40 cm | 7,125 | 24 hrs |
| 40 × 50 cm | 11,875 | 40 hrs |
| 50 × 65 cm | 19,297 | 64 hrs |
| 60 × 80 cm | 28,500 | 95 hrs |
| 80 × 100 cm | 47,500 | 158 hrs |
*At intermediate speed (300 drills/hr)
Inputs
Result
Canvas area is 2,000 cm². At 6.25 drills/cm² that is 12,500 raw drills. Round drills reduce this by 5% to 11,875. At 300 drills/hr, this takes about 39.6 hours or 20 days at 2 hours per day.
Inputs
Result
Canvas area is 1,200 cm². At 12.25 drills/cm² with square drills (full coverage), the total is 14,700 drills. An experienced crafter at 500 drills/hr finishes in about 29.4 hours or 15 days at 2 hours per day.
Inputs
Result
Canvas area is 4,800 cm². At 25 drills/cm², that is 120,000 raw drills. Round drills reduce this by 5% to 114,000. A beginner at 150 drills/hr would need 760 hours — over a year at 2 hours per day.
The number of drills depends on canvas size and resolution. A standard 40×50 cm canvas at 25×25 resolution has about 6.25 drills per cm², totaling roughly 12,500 drills. HD canvases (35×35) have 12.25 drills/cm², and premium (50×50) pack 25 drills/cm² for ultra-fine detail.
| Canvas Size | Standard | HD | Premium |
|---|---|---|---|
| 20 × 30 cm | 3,750 | 7,350 | 15,000 |
| 30 × 40 cm | 7,500 | 14,700 | 30,000 |
| 40 × 50 cm | 12,500 | 24,500 | 50,000 |
| 60 × 80 cm | 30,000 | 58,800 | 120,000 |
A 40×50 cm standard-resolution diamond painting takes 20–80 hours depending on skill level. Beginners place about 150 drills per hour, intermediates around 300, and experienced crafters 500 or more. At 2 hours per day, a 12,500-drill project takes roughly 3–6 weeks.
| Speed Level | Drills/Hour | 12,500 Drills | 50,000 Drills |
|---|---|---|---|
| Beginner | 150 | 83 hrs | 333 hrs |
| Intermediate | 300 | 42 hrs | 167 hrs |
| Experienced | 500 | 25 hrs | 100 hrs |
| Expert | 800 | 16 hrs | 63 hrs |
Round drills are circular and leave small gaps between them, resulting in roughly 5% less coverage than square drills. Square drills fit together like a mosaic with no gaps, creating a more complete and polished look. Round drills are easier to place and better for beginners.
| Feature | Round Drills | Square Drills |
|---|---|---|
| Coverage | ~95% (gaps) | 100% (no gaps) |
| Ease of Placement | Easier, forgiving | Requires precision |
| Finished Look | Softer, organic | Crisp, mosaic-like |
| Typical Kits | Budget (<$20) | Premium ($25+) |
Keep at least 15% extra drills beyond what the design requires. For a 12,500-drill project, that means about 1,875 spare drills. Most quality kits include 20–30% extra, but if buying drills separately, 15% is the safe minimum to cover drops, defects, and miscounts.
| Project Size | Total Drills | 15% Spare | Spare per Color (25 colors) |
|---|---|---|---|
| 30 × 40 cm | 7,500 | 1,125 | ~45 |
| 40 × 50 cm | 12,500 | 1,875 | ~75 |
| 60 × 80 cm | 30,000 | 4,500 | ~180 |
A 20×30 cm or 30×40 cm canvas at standard resolution is best for beginners. These sizes have 3,750–7,500 drills and take 12–50 hours to complete. Smaller canvases let you learn the technique without committing to months of work. Choose a design with 15–20 colors for manageable sorting.
| Beginner Level | Canvas Size | Drills | Est. Hours |
|---|---|---|---|
| First project | 20 × 30 cm | 3,750 | 12–25 |
| Second project | 30 × 40 cm | 7,500 | 25–50 |
| Intermediate | 40 × 50 cm | 12,500 | 42–83 |
| Advanced | 60 × 80 cm | 30,000 | 100–200 |
Read our guide
Read our guide
Read our guide
Discover tools for cross stitch, beading, candle making, resin art, fiber arts, and more.
Last Updated: Mar 9, 2026
This calculator is provided for informational and educational purposes only. Results are estimates and should not be considered professional financial, medical, legal, or other advice. Always consult a qualified professional before making important decisions. UseCalcPro is not responsible for any actions taken based on calculator results.