How to Measure Boat Length?

Last Updated on October 1, 2022

There are a few different ways that you can measure the length of your boat. The most common way is to use a tape measure. If you’re using a tape measure, simply extend it from the bow (front) of the boat to the stern (back).

Here we’ll outline three common methods of measuring a boat’s length. Which one you use depends on the situation and what’s available to you. So read on and find out which method is best for you!

Length of a Boat – Length Overall (LOA)

  • Find the longest point of the boat. This is usually the point from the front of the boat to the back, but it could also be from one side of the boat to the other.
  • Place a measuring tape at this point and measure to the end of the boat.
  • Make sure to measure in a straight line and do not include any overhangs or appendages in your measurement.
  • Record your measurement and you now know the length of your boat!

How to Measure a Boat Width?

Boat width is one of the key dimensions used in determining a vessel’s size. It is also an important factor to consider when measuring a boat for storage, transportation, or other purposes. 

There are various ways to measure boat width and the method you use will depend on the type of boat you have and your specific needs.

One common way to measure boat width is from gunwale to gunwale. This measurement is taken at the widest point of the vessel and can be done with a tape measure or ruler. 

Another option is to measure from chine to chine, which is done along the length of the hull at its widest point.

Yet another option is to take overall beam measurements, which encompass the entire width of the hull including any overhanging portions such as rails or decks. 

Whichever method you choose, always take several measurements at different points on the vessel just to be safe.

What is the Length of a Boat?

In general, however, most boats fall within a certain range of lengths. The shortest boats are usually less than 10 feet long and are used for things like kayaks and canoes. These boats are designed to be lightweight and easy to maneuver.

They are not typically used for extended trips or in rough waters. At the other end of the spectrum are large yachts and other luxury vessels that can be 100 feet or more in length. 

These boats have multiple levels and room for many passengers and crew members. They also have extensive amenities onboard, such as kitchens, bedrooms, and living areas. 

Yachts this size are typically used for leisurely cruising or as floating vacation homes. Most boats fall somewhere in between these two extremes, with lengths ranging from 20 to 50 feet being the most common.

How to Measure Boat Length Australia?

Are you looking to measure the length of your boat in Australia? If so, there are a few things you need to know. Here is a guide on how to measure boat length in Australia.

First, you need to understand that there are two main types of measurement used for boats in Australia, the metric system and the imperial system. 

The metric system is used more commonly, so we will focus on that first. To measure your boat’s length in meters, start at the tip of the bow (the front of the boat) and measure to the stern (the back of the boat).

This is your overall length. Easy! But what if you want to be more specific and measure things like your hull length or waterline length?

These measurements are a bit more complicated but still relatively easy to do. For hull length, start at the tip of the bow and measure down along the centreline of the boat to where it meets the waterline. This is your hull length.

And for waterline length, simply measure from one end of the waterline (usually at either side of the boat) to the other. Again, this is measured along the centreline of the vessel. 

How to Measure the Depth of a Boat?

Assuming you would like a blog post about how to measure the depth of a boat: There are a few different ways that you can measure the depth of your boat. 

One way is to use a tape measure. Start at the bottom of the hull and measure up to the waterline. This will give you the draft of your boat. 

Another way to measure the depth of your boat is to use a sounding line. Tie one end of the line around a weight, such as a lead sinker, and lower it into the water until it reaches the bottom. 

Mark the line at the point where it meets the water surface, then pull it back in and measure the length from the mark to the top of the weight. This will give you an accurate measurement of your boat’s depth.

Boat Height Measurement

Boat height is measured from the waterline to the tallest point on the boat. This measurement is important for determining the draft of the boat, which affects how deep it can go in the water. The draft also determines how much windage the boat has, which affects its speed and handling.

How to Measure Boat Length?

Does Length of Boat Include Swim Platform?

There is some debate on whether or not the swim platform should be included in the overall length of the boat. The main argument for including it is that it is a permanent part of the boat that cannot be removed without affecting the hull. 

Additionally, it can be used for boarding and other activities, so it serves an important purpose.

On the other hand, some people argue that the swim platform should not be included because it can be easily removed and is not essential to the function of the boat. 

Ultimately, it is up to the individual to decide whether or not they want to include the swim platform in the overall length of their boat.

What is the 4 Length Classification of Boats?

There are four length classifications of boats:

Canoe: A canoe is a small, narrow vessel that is propelled by someone using a paddle. It is typically used for recreation or transportation on calm waters.

Kayak: A kayak is a small, narrow vessel that is propelled by someone using a double-bladed paddle. It is typically used for recreation or transportation on calm waters. 

Sailboat: A sailboat is a larger vessel that is propelled by the wind in its sails. It can be used for recreation or transportation on both calm and open waters. 

Motorboat: A motorboat is a vessel that is powered by an engine. It can be used for recreation or transportation on both calm and open waters.


Measurement of boat length can be done in a variety of ways.  There are three main ways to measure the length of a boat- measuring from bow to stern, measuring from waterline to gunwale, and using digital images.  

While there are various methods for measuring a boat’s length, all have their own benefits and drawbacks.  Which method you choose will depend on your needs and what is most important to you when measuring your boat.