Rate of Descent Calculator
Calculate required descent rate for approach and descent planning.
Quick ROD Reference
| Ground Speed | 3.0° ROD | 3.5° ROD |
|---|---|---|
| 60 kts | 318 fpm | 371 fpm |
| 90 kts | 477 fpm | 557 fpm |
| 120 kts | 636 fpm | 742 fpm |
| 140 kts | 742 fpm | 866 fpm |
| 160 kts | 848 fpm | 990 fpm |
ROD Rule of Thumb
For 3-degree glide path:
ROD = Ground Speed x 5
Example: 120 kts x 5 = 600 fpm