Bathmate size calculator

Please use our formula to calculate the size of Bathmate Pump that is right for you.

  1. Measure your erected penis
  2. Select your measures
    Select length
    Select Girth
  3. Final caculations

PUMP’s SIZE TABLE

Please use our formula to calculate the size of Bathmate Pump that is right for you.

Current Erect Length Current Erect Width Room for growth
Hydro 7 5-7 in 2.0 in 1.5 in 
Hydromax 5 For a penis that is 3-5 in. 3-5 in  1 3/4 in  1.5 in 
Hydromax 7 / HydroExtreme 7 5-7 in  2.0 in 1.5 in 
Hydromax 9 / HydroExtreme 9 7-9 in  2 1/4 in 1.5 in 
HydroExtreme 11 a penis that is 9-11 in. 9-11 in  2 1/2 in 1.5 in