Refractory Brick Calculator
Calculate the number of refractory bricks, rings, and total weight for rotary kiln lining. Supports ISO standard brick formats.
Kiln & Brick Parameters
2-3 mm mortar joints may affect actual count.
Results
Enter kiln and brick parameters, then click Calculate.
ISO Brick Reference
| Format | a (mm) | b (mm) | h (mm) |
|---|---|---|---|
| 218 | 103 | 84 | 180 |
| 418 | 103 | 93.5 | 180 |
| 618 | 103 | 97 | 180 |
| 220 | 103 | 82 | 200 |
| 320 | 103 | 89 | 200 |
| 420 | 103 | 92.5 | 200 |
| 620 | 103 | 96.2 | 200 |
| 820 | 103 | 97.8 | 200 |
| 322 | 103 | 88 | 220 |
| 422 | 103 | 91.5 | 220 |
| 622 | 103 | 95.5 | 220 |
| 822 | 103 | 97.3 | 220 |
| 425 | 103 | 90 | 250 |
| 625 | 103 | 94.5 | 250 |
| 825 | 103 | 96.5 | 250 |
Tip: Select an ISO format to auto-fill brick dimensions, or enter custom values manually.
How It Works
1. Circumference
Inner circumference = pi x D x 1000 (mm)
Inner circumference = pi x D x 1000 (mm)
2. Bricks per Ring
Bricks/ring = Circumference / avg. brick width + safety margin
Bricks/ring = Circumference / avg. brick width + safety margin
3. Number of Rings
Rings = Zone length x 1000 / brick height (h)
Rings = Zone length x 1000 / brick height (h)
4. Total Bricks & Weight
Total = rings x bricks/ring x (1 + wastage %)
Total = rings x bricks/ring x (1 + wastage %)