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Recommended Sizes for Endotracheal Tubes
| Body Weight (kg) | Magill Size | French Size | Internal Diameter (mm) | |
|---|---|---|---|---|
| Dogs | 2 | 2 | 22 | 6 |
| 4 | 4-5 | 26-28 | 8 | |
| 6 | 6-7 | 28-30 | 9 | |
| 9 | 8 | 32 | 10 | |
| 12 | 9-10 | 34-36 | 11-12 | |
| 14 | 9-10 | 34-36 | 11-12 | |
| 16 | 10-11 | 36-38 | 11-12 | |
| 18-20 | 11-12 | 38-44 | 12 | |
| Cats | 1 | 00 | 13 | 4 |
| 2 | 0 | 16 | 5 | |
| 4 | 1 | 20 | 5 |
