Practical tools. More time afloat.

ActuNautisme brings together free calculators for fuel, navigation and propeller performance, alongside a creative Boat Name Studio.

Use your own measurements

Our calculators make the arithmetic easier. Tank dimensions, fuel burn, speed and engine ratios come from your measurements or manufacturer documentation. Results are estimates, not navigation instructions or manufacturer approvals.

US and metric units

Use US gallons or liters for fuel, inches, feet or centimeters for tank dimensions, and nautical or statute units for conversions. Your unit choices travel with shared calculations.

Make it your own

The Studio provides illustrative 3D previews. A generated name does not reserve a registration or confirm name availability.