Boat Capacity Calculator

There are a few things you need to consider when determining how much weight your boat can carry. The first is the boat’s capacity plate, which lists the maximum weight capacity and persons allowed for the vessel. You’ll also want to factor in the weight of any gear or equipment you’re bringing on board, as well as the weight of any passengers.

Use this Boat Capacity Calculator to determine just how much your boat can handle!

Are you looking to buy a boat, but not sure what size you need? Use this Boat Capacity Calculator to help determine the size and capacity of the boat that is right for you! Just enter the amount of people and gear that you anticipate using, and the calculator will do the rest.

Don’t forget to factor in things like pets, coolers, and fishing equipment when making your decision. Now get out there and enjoy the open water!

Boat Capacity Calculator


How Do You Calculate the Capacity of a Boat?

There are a few different ways to calculate the capacity of a boat. The most common way is to use the formula: length (in feet) x width (in feet) / 15 = This the Boat Capacity (Number of people). This formula works for all types of boats, including canoes and kayaks.

This will give you the approximate number of people that the boat can safely hold. Finally, you can also calculate the capacity of a boat by its seating capacity. This is the maximum number of people that can comfortably sit in the boat at one time.

Keep in mind that this number will be lower than the actual capacity of the boat because not everyone will be sitting down at all times. To sum it up, there are three main ways to calculate the capacity of a boat: using its length, width and depth; using its weight limit; or using its seating capacity. Choose whichever method makes more sense for your particular situation and you should be able to get an accurate estimate of how many people or how much weight your boat can hold.

How Do You Know the Maximum Capacity of Your Boat?

There are a few ways to determine the maximum capacity of your boat. The first is to refer to the manufacturer’s specifications. This will give you the maximum weight and number of people that the boat is designed to hold.

The second way to determine capacity is by using a mathematical formula. This formula takes into account the length, width and depth of the boat, as well as the type of hull. Finally, you can use a weight and person capacity chart.

This chart gives you capacities for various sizes and types of boats based on industry standards.

How Many Does a 22 Foot Boat Hold?

Assuming you are asking about a pontoon boat, they typically hold 8-10 people. If you are talking about a fishing boat, the size varies and it really depends on the make and model of the boat.

The formula for grtting the number of persons you can have on board is: “Boat Length (in feet) x Max Width (in feet) / 15”. 

This Calculation works out as ” 22.5 X 8.0 / 15 ” = 12 persons including you that you can comfortably carry.

What is the Carrying Capacity of a Boat?

The carrying capacity of a boat is the amount of weight that the vessel can safely carry without sinking. The size and type of boat will determine its carrying capacity, which is usually measured in tons or pounds. Larger boats have a greater carrying capacity than smaller ones, and cargo ships have a much higher carrying capacity than pleasure boats.

The weight of the crew, passengers, and any cargo must be within the safe limits for the vessel to remain afloat. Most boats are designed with a margin of safety, meaning that their actual carrying capacity is slightly less than their theoretical maximum. This is to account for unexpected factors such as bad weather or waves.

It’s always better to err on the side of caution when loading a boat, as even a small amount of extra weight can make the difference between floating and sinking. Whether you’re planning to go boating for leisure or business purposes, it’s important to know the carrying capacity of your vessel. This information can help you stay safe on the water and avoid exceeding the limits of your boat.

Vessel Gross Tonnage Simple Calculation

21 Foot Boat Capacity

A 21-foot boat can accommodate up to 12 people, depending on the size and weight of the passengers. The average weight of an adult is about 150 pounds, so a 21-foot boat can theoretically hold 1,800 pounds of people. However, the U.S. Coast Guard recommends that the capacity of a vessel be reduced by 50% when using it for recreation, so a 21-foot boat should really only have six people aboard.


If you’re looking to calculate how much weight your boat can carry, you’ll need a boat capacity calculator. This tool will help you determine the maximum weight your vessel can support safely. To use it, simply enter the dimensions of your boat and the type of material it’s made from.

The calculator will then provide you with a safe load limit for your vessel.

Related: Planing Hull Speed Calculator

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