Calculation Machine logoCalculation Machine
Auto

Boat Fuel Cost Calculator

Fuel cost for a boating trip by hours run.

Enter your values

ⓘ Live results

Results
Total fuel cost
$252.00
Gallons used
60 gal
Cost per hour
$50.40

Quick answer

Boat fuel cost is the engine's gallons-per-hour burn rate times hours run, times the price per gallon.

cost = gph x hours x price per gallon

How to use the Boat Fuel Cost Calculator

  1. 1Check your engine's fuel burn rate (gallons per hour) at your typical cruising RPM.
  2. 2Enter the planned hours you'll be running the engine.
  3. 3Enter local marine fuel price to see your total trip fuel cost.

Worked example

Using the values the calculator loads with:

Inputs

  • Fuel burn rate12 gal/hr
  • Hours running5
  • Fuel price per gallon4.20

Results

  • Total fuel cost$252.00
  • Gallons used60 gal
  • Cost per hour$50.40

Frequently asked questions

Where do I find my boat's GPH?

Check the owner's manual or use a fuel flow gauge; it varies significantly with RPM and load.

Does idling use much fuel?

Idling burns much less than cruising speed, but extended idling still adds up over a full day.

About this calculator

Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.