| BT-5 | BT-20 | BT-50 | BT-55 | BT-56 | BT-58 | BT-60 | BT-80 | |
| BT-5 | — | 74% | 56% | 41% | 40% | 35% | 33% | 21% |
| BT-20 | 135% | — | 75% | 55% | 55% | 48% | 45% | 28% |
| BT-50 | 179% | 133% | — | 73% | 73% | 63% | 60% | 38% |
| BT-55 | 244% | 181% | 136% | — | 99% | 86% | 81% | 51% |
| BT-56 | 247% | 183% | 138% | 101% | — | 87% | 82% | 52% |
| BT-58 | 283% | 209% | 158% | 116% | 114% | — | 94% | 59% |
| BT-60 | 301% | 223% | 168% | 123% | 122% | 106% | — | 63% |
| BT-80 | 478% | 353% | 266% | 195% | 193% | 169% | 159% | — |
Estes Body Tube Scale Calculator
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- Category: Rocket Tools