Boat Loan Calculator
Use the LendingTree boat loan calculator to estimate your monthly payment and total interest based on your loan amount, APR and repayment term. Adjust the numbers to compare different financing scenarios and see how changes to your rate or loan term could affect what you pay each month and over the life of the loan.
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How to use the LendingTree boat payment calculator
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Enter values
Type in your loan amount, estimated interest rate and loan term. Here’s how to find these numbers. -
See what you’ll pay
The LendingTree boat loan calculator shows your estimated monthly payment, total repayment and total interest paid. Total repayment and total interest paid reflect the full cost of borrowing money for your boat. -
Adjust the numbers
Play around with the numbers until you land on an affordable boat loan.
How much boat can I afford?
How much boat you can afford depends on more than the purchase price. Start by using the boat loan calculator to estimate your monthly loan payment based on your expected loan amount, APR and repayment term.
Then factor in the other costs of owning a boat, which may include:
- Insurance: Coverage costs can vary based on the boat’s value, type and how you use it.
- Fuel: Larger boats and frequent use can significantly increase fuel costs.
- Maintenance and repairs: Routine maintenance, winterization and unexpected repairs can add to your annual expenses.
- Storage or marina fees: Depending on where you keep your boat, you may need to budget for a slip, dry storage or off-season storage.
- Registration and other fees: Registration, taxes and other local expenses may also affect your total cost.
Try several loan amounts, interest rates and repayment terms in the calculator to find a monthly payment that fits your budget without overlooking these additional ownership costs.
What information do I need for the boat loan calculator?
Loan amount
How much you borrow (boat cost minus down payment)
Average boat loan amount offered through LendingTree: $57,526 in Q2 2026
Interest rate
Measures the cost of your loan
Average boat loan APR offered through LendingTree: 8.34% in Q2 2026
Learn how to get affordable rates.
Loan term
How long you have to pay back your loan
Typical boat loan term: 10-20 years
How can I lower my boat loan payment?
If your estimated boat payment is higher than you’d like, use the calculator to compare different loan amounts, APRs and repayment terms. Small changes to these inputs can affect both your monthly payment and the total interest you’ll pay.
Borrow less
Choosing a less expensive boat or making a larger down payment can reduce the amount you need to finance. In Q2 2026, the average boat loan amount offered through LendingTree was $57,526, but your loan may be higher or lower depending on the boat you choose and how much you put down.
Use the calculator to compare the cost of borrowing different amounts and see how a smaller loan could affect your monthly payment and total interest.
Compare boat loan rates
Even a small difference in APR can change how much you pay each month and over the life of your loan. Compare offers from multiple lenders rather than accepting the first rate you receive.
You can get boat loan offers from up to five lenders at once through LendingTree, then plug the APRs and loan terms into the calculator to compare the offers side by side.
Adjust your loan term
A longer repayment term can lower your monthly payment, but you’ll generally pay more interest over time. A shorter term may come with a higher monthly payment but reduce your total borrowing cost.
Try several loan terms in the calculator to see which balance of monthly payment and total interest works best for your budget.
Consider a larger down payment
Putting more money down reduces the amount you need to borrow, which can lower your monthly payment and the amount of interest you pay.
Improve your credit before applying
A stronger credit profile may help you qualify for a lower APR. Because your interest rate directly affects your monthly payment and total loan cost, improving your credit before applying could make financing more affordable.
Find the right boat loan down payment
It’s common for boat lenders to require a 10% to 20% down payment, but how much should you actually put down? Here are a couple of things to consider:
- Bigger down payments make your boat loan cheaper. The less you borrow, the less money you’ll pay in interest. If you have the cash, it’s smart to put down a larger down payment on your boat.
- Smaller down payments come with risks. Putting less money down on your boat could put you at greater risk of missing payments, since your monthly payments will be higher. You’re also more likely to go upside-down on your boat loan.
LendingTree rule of thumb: Put down as much as you can comfortably afford — just make sure to consider boat loan fees in your calculations. If you can’t afford 10% on a less expensive vessel or 20% on a typical boat, save up for a larger down payment.
Try it out
Use the LendingTree boat loan calculator to estimate how much it would cost to put down 10%, 15% or 20%. Here’s what the math looks like for a 10% down payment:
Down payment = 0.1 x cost of boat
Loan amount = Cost of boat – down payment
Find the right boat loan term
You’ve read about average boat loan terms — 10 to 20 years being the average — but how do terms affect your payment? Here’s what to know:
- Shorter loan terms mean higher monthly payments, but you’ll save money on interest.
- Longer loan terms come with lower monthly payments, but you’ll pay more interest.
LendingTree rule of thumb: Choose the shortest loan term with monthly payments you can afford. Just make sure you can actually afford the monthly payments — you don’t want to risk defaulting on your loan.
Learn more about choosing the right boat loan term and how long you can finance your boat.
Try it out
Use the LendingTree boat loan calculator to play with your boat loan terms. Enter the price of the vessel you want (minus your down payment) and the average APR for your credit band into the calculator. Then try 5, 10, 15 and 20 year terms and see how your payment and the cost of interest change.
How your credit affects your boat payment
Boat lenders offer better (lower) rates to people with good credit. Current boat loan rates from top lenders start at 5.99%, and the average offered APR was 8.34% in Q2 2026 on the LendingTree marketplace.
Here are the average offered boat loan rates by credit band on the LendingTree marketplace:
| Credit score | Average APR |
|---|---|
| Excellent (800 and above) | 7.30% |
| Very good (740 – 799) | 7.72% |
| Good (670 – 739) | 8.95% |
| Fair (580 – 669) | 10.19% |
So how much does your credit score actually impact the cost of your boat loan?
Let’s say you’re borrowing $57,526 (the average amount offered through LendingTree for boat loans) over a 10-year loan term.
| Credit score | Monthly payment | Total interest |
|---|---|---|
| Excellent (800 and above) | $676.85 | $23,696.48 |
| Very good (740 – 799) | $689.47 | $25,210.06 |
| Good (670 – 739) | $727.16 | $29,733.12 |
| Fair (580 – 669) | $766.28 | $34,427.09 |
Improving your credit score from fair to good could save you $4,693.97 in total interest. If you boosted your score even more to very good, you could save $9,217.03 in total interest.
Translation? Taking the time to improve your credit score before taking out your boat loan could be worth thousands of dollars.
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Try it out
Use the LendingTree boat loan calculator to see how much you could save by improving your credit. First, use your current credit band to estimate how much you’d pay for the boat you want. Pay attention to your monthly payment and total cost of interest. Then, enter the average rate for the credit band above yours and see how much you could save.
Next steps to buy and fund your boat
Check out the best boat lenders
Find the best boat loans with expert-approved picks.
Get preapproved
Ready to set sail? Take the time to get preapproved for a boat loan before you head to the dealer to make sure you’re getting the lowest rates.
Budget for other costs
Your boat loan is just one of many costs of boat ownership. Budgeting for insurance, maintenance, mooring, storage and other fees will help you stay afloat financially.
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