Buoyancy Calculator

This calculator helps you determine the minimum radius of a buoy needed to lift a device underwater. Enter the weight of the device, along with other relevant parameters, and click "Calculate" to get the result.

Weight of device (kg) (Enter the weight of your device, e.g. 2)

Density of water (kg/m³) (The default value is standard seawater density, e.g., 1025)

Density of device material (kg/m³) (The density of the material, e.g., 7850 for steel)

Density of air inside the buoy (kg/m³) (The default value is standard air density at sea level, e.g., 1.225)

Acceleration due to gravity (m/s²) (The default value is gravity at sea level, e.g., 9.8)