A boat can provide hours of enjoyment during the hot days of summer, but an overloaded boat can turn that fun into danger. Knowing the passenger capacity of your boat can keep you cruising on the lake and not stuck at the dock.
Check your boat's owner's manual for the passenger capacity.
Look for the passenger count and weight capacity of your boat. This should be posted on a plaque somewhere on your boat.
Calculate the passenger capacity yourself. Multiply the length of your boat by the width of your boat and divide it by 15 to get the number of people your boat can safely hold. For example, if your boat is 30 feet long and 15 feet wide, your boat's capacity would be 30 x 15 / 15, which is 30.
Figure the weight capacity of your boat. Multiply the number of people from Step 3 by the average weight of 150 pounds per person. In the example in Step 3, the weight capacity of the boat would be 4,500 pounds.