Business Line of Credit Calculator: Estimate Payments

Use our calculator to estimate the total costs of a business line of credit.
Randa Kriss
By Randa Kriss 
Edited by Sally Lauckner

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A business line of credit allows you to borrow money from a specific amount of funds and only pay interest on the money you borrow. You then repay the funds — typically weekly or monthly — and can continue to draw on the line.

The cost of a business credit line will depend on your withdrawal amount, repayment term and annual percentage rate. Enter these numbers into our business line of credit calculator to estimate potential payments and interest costs.

How much do you need?

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We’ll start with a brief questionnaire to better understand the unique needs of your business.

Once we uncover your personalized matches, our team will consult you on the process moving forward.

How to use the business line of credit calculator

The best business line of credit is usually the one you can qualify for with the most competitive rates and terms. As you research small-business loan options, you’ll want to estimate the total financing costs to make sure you can afford to take on new debt.

Enter your information

Here’s what you need to enter into the calculator to determine the cost of a business credit line:

  • Withdrawal amount. The amount of money you draw from your credit line. Remember that you’re only charged interest on the funds you withdraw and not on your total credit limit.

  • Repayment term (in months). The time it takes to repay the money you borrowed.

  • Annual percentage rate. The annual cost of financing, including interest and fees. An APR will make it easier to compare the costs of different products.

Note that lenders charge interest in different ways. Some lenders may charge simple interest, some charge interest as a factor rate, and others charge a weekly or monthly fee on your outstanding balance.

You’ll always want to calculate interest and fees into an APR to get the best understanding of how much a business line of credit costs.

Break down your results

By inputting this information into the business line of credit calculator, you’ll receive:

  • Monthly payment. The specific amount you’ll pay each month, including principal, interest and fees.

  • Total payments. The total of all the payments you’ll make on your line of credit, which includes the amount you borrowed, plus interest and fees.

  • Total interest paid. The total amount of interest you’ll have paid at the end of your repayment term — in other words, the total amount the lender is charging you to borrow from them. If you can repay early, you may be able to save on interest costs, provided your lender doesn’t charge prepayment penalties.

Bluevine - Line of credit
OnDeck - Online term loan
Funding Circle - Online term loan
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NerdWallet rating 


NerdWallet rating 



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Est. APR 


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Is a business line of credit right for me?

A business line of credit can be a good option for managing cash flow gaps, covering short-term financing needs and serving as an emergency fund. If you can qualify for a credit line with reasonable rates and terms, it may be advantageous to keep this financing in your back pocket — provided your lender doesn’t charge fees for inactivity.

Before you make any decisions, however, you’ll want to use a business line of credit calculator to estimate potential costs to determine whether you can afford to take on new debt. And if you opt to move forward, make sure to research and compare a variety of options to ensure you’re getting the best deal for your business.

Learn more about business lines of credit:

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