Calculate the optimal weight for scuba diving based on environmental factors. Input your weight, water type, tank, and exposure suit to get a suggested weight for neutral buoyancy.

186+ iOS apps curated and reviewed
Every iPhone needs a few good buoyancy calc apps. We benchmark 186+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | 3.1★ (25) | No | No | May 2026 | ||
| 2 | Free | 4.4★ (4.6K) | No | Yes | Sep 2026 | ||
| 3 | Free | 3.7★ (272) | No | Yes | Aug 2026 | ||
| 4 | Free | 4.7★ (473) | No | No | Sep 2026 | ||
| 5 | Free | 4.1★ (15) | — | No | Aug 2026 | ||
| 6 | $9.99 | 4.9★ (5.3K) | No | No | Sep 2026 | ||
| 7 | Free | 4.6★ (51) | No | No | Aug 2026 | ||
| 8 | Free | 4.1★ (51) | No | Yes | Sep 2026 |

Calculate the optimal weight for scuba diving based on environmental factors. Input your weight, water type, tank, and exposure suit to get a suggested weight for neutral buoyancy.






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