Listed gear-ratio data for 2015 Tohatsu 30 HP outboards. Match your exact model and lower unit; some models may have more than one gearcase configuration.
2015 Tohatsu 30 HP
Listed ratio values: 1.85:1, 1.92:1, 2.17:1
| Model | Gear ratio |
|---|---|
| M30H | 1.92:1 |
| MD30B2 | 1.85:1 |
| MFS30C | 2.17:1 |
Use the ratio that matches your exact outboard model and lower unit, then enter it in the PropSlip calculator.