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Boat speed calculator

Answers the question: How fast does the boat go?

Use this calculator if you want to calculate the theoretical top speed of a modern day cruiser. The speed is calculated in kilometers per hour and in knots.

Results

Boat speed: 70.22 kilometers per hour
Boat speed: 37.92 knots

Remember that this is only an estimate and that some boats go faster than others.


Our calculations

At Calculatorian, we are keen to share our knowledge, be transparent and open to feedback. Here are the calculations used to create this calculator. If you find an error or deficiency, contact us and we'll fix it in an instant!

Boat speed was calculated like this:

Step 1

First we need to calculate the variable w. w = boat weight in kilograms.

Step 2

Then we need to calculate the variable pw. pw = total passenger weight in kilograms.

Step 3

Then we need to calculate the variable tw. tw = total weight in kilograms.

Step 4

Then we need to calculate the variable mph. mph = boat speed in miles per hour.

Step 5

Finally we put it together and calculate it like this:

Boat speed was calculated like this:

Variables used in this formula

hp = Horsepower
d = Total boat weight in kilograms
p = Number of passengers