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Boat Gross Tonnage Calculator

Formula

The formula to calculate the Boat Gross Tonnage (BGT) is:

$BGT = 0.5 \times BL \times BD \times BW / 100$

where $BGT$ is the boat gross tonnage, $BL$ is the boat length in feet, $BD$ is the boat breadth in feet, and $BW$ is the boat depth in feet.

What is Boat Gross Tonnage?

Boat gross tonnage is a measure of the overall internal volume of a boat. It is calculated by multiplying the boat's length, breadth, and depth together, dividing by 2, and then dividing by 100. This measurement is often used for regulatory and registration purposes.

Example Calculation

Let's assume we have the following values:

Boat Length ( $BL$ ) = 50 ft
Boat Breadth ( $BD$ ) = 20 ft
Boat Depth ( $BW$ ) = 10 ft

Step 1: Multiply the boat length, breadth, and depth together:

$50 \times 20 \times 10 = 10000$

Step 2: Divide by 2:

$10000 / 2 = 5000$

Step 3: Divide by 100:

$5000 / 100 = 50$

Therefore, the Boat Gross Tonnage (BGT) is $BGT = 50$ tonnage.