Use the Michigan Wheel Prop Calculator to estimate the right propeller size and pitch for your boat. Optimize speed, power, and efficiency on water.
Propeller Selection Results
Project: | Propulsion Type:
| Metric | Value |
|---|---|
| Propeller Diameter | |
| Propeller Pitch | |
| Blade Count | |
| Material | |
| Propeller Series | |
| Rotation | |
| Propeller Slip | |
| WOT RPM | |
| Top Speed |
Show unit definitions
Metric Units:
- Meters (m): Length (1 m ≈ 39.37 in)
- Kilometers per hour (km/h): Speed (1 km/h ≈ 0.621 mph)
- Kilograms (kg): Weight (1 kg ≈ 2.205 lb)
- Inches (in): Length (1 in ≈ 0.0254 m)
- Miles per hour (mph): Speed (1 mph ≈ 1.609 km/h)
- Pounds (lb): Weight (1 lb ≈ 0.454 kg)
Understanding Your Results
- Propeller Diameter: Distance across the propeller’s blade circle. Larger diameters suit heavier boats or low-speed performance.
- Propeller Pitch: Theoretical forward movement per revolution. Lower pitch improves hole shot; higher pitch increases speed.
- Blade Count: Number of blades (3 or 4). 4-blade props enhance thrust for hole shot; 3-blade for top speed.
- Material: Aluminum (cost-effective), stainless steel (high-performance), or bronze (inboard durability).
- Propeller Series: Michigan Wheel series (e.g., Vortex, Apollo) for your boat and goal.
- Rotation: Direction of prop spin (RH = right-hand). Dual-engine boats may need LH.
- Propeller Slip: Difference between theoretical and actual travel (5–30% typical).
- WOT RPM: Engine RPM at full throttle. Should be within the manufacturer’s recommended range.
- Top Speed: Estimated maximum speed with the recommended propeller.
Note: Results are estimates based on Michigan Wheel’s propeller guidelines. Consult a Michigan Wheel dealer for final selection and performance testing. Visit Michigan Wheel Prop Finder.
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