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Small Business & Commercial Loan Calculator

With Lendstart’s business loan calculator, you can figure all of this out – and more – before ever committing to a loan.

Business Loan Calculator

Loan amount


Term in months


Interest rate per year



Monthly payment


Total paid


Interest paid

Month Balance Interest Principal
1 $10000.00 $37.50 $816.29
2 $9183.71 $34.44 $819.35
3 $8364.37 $31.37 $822.42
4 $7541.95 $28.28 $825.50
5 $6716.45 $25.19 $828.60
6 $5887.85 $22.08 $831.71
7 $5056.14 $18.96 $834.82
8 $4221.32 $15.83 $837.96
9 $3383.36 $12.69 $841.10
10 $2542.26 $9.53 $844.25
11 $1698.01 $6.37 $847.42
12 $850.60 $3.19 $850.60

If you’re looking to expand your business, a small business or commercial loan could come in handy. Before applying for one, consider the total cost of the loan with interest and how long it’ll take to repay.

How to Use a Business Loan Calculator

Most business loan calculators require some basic information to estimate what your monthly payments will be. This includes:

  • Loan amount: This refers to the total amount borrowed before interest.
  • Loan terms (months or years): The term indicates how many payments you’ll make on the loan. Payments are usually monthly. So, if your loan term is for 12 months, or one year, you’ll make 12 payments.
  • Annual Interest Rate: Your monthly payments will include both the principal balance and the interest rate. Most business loans express interest as APR. To figure out your monthly interest rate, take the APR and divide it by 12.

Knowing this information can help you successfully budget for the loan. It can also help you determine your borrowing limits.
Some online calculators also ask for other information, such as:

  • Borrower’s annual income: This can give you an estimate of how much you can afford to pay each month or year.
  • Debt-to-income ratio or other monthly obligations: This includes things like credit cards, real estate mortgage, and other debts or expenses. It also helps determine what you can realistically afford.
  • Pay Frequency: The pay frequency influences the loan terms. Some loans require one monthly payment, while others require more.
  • Fees: Many commercial loans come with other charges, such as an origination fee or documentation fees. These fees are usually already included in the monthly payment amount. Inputting the information in a calculator can tell you how much money you’re paying towards fees vs. the principal.

With the business loan calculator, you can map out your strategy for repaying the loan from start to finish. Plus, if you check the amortization schedule, you can get a detailed idea of your monthly schedule leading up to the final payoff date.
If desired, you can also add extra payments to your monthly payments to decrease your total interest and speed up the payback schedule.

Business Loan Examples

Example A Example A Example B Example C
Principal Amount $50,000 $100,000 $500,000
Yearly Interest (APR) 6.00% 6.00% 6.00%
Number of Payments (5-year loan) 60 60 60
Estimated Monthly Payment $966.64 $1,933.28 $9,666.40
Total Payment + Interest $57,988.40 $115,996.81 $579,984.05

Check the amortization schedule to see your monthly payment breakdown and how much goes towards the principal vs. interest. Just be aware that the figures are estimates. The exact figures may vary based on the loan and lender’s terms or other fees.

Why Use a Business Loan Calculator

There are several reasons why you should use a business loan calculator before taking out a loan.

  • Determine the best term length. The term length affects your monthly charges and total interest over the life of the loan. Knowing this is essential to choosing the right loan for your business.
  • Figure out the monthly payment. A calculator can help you budget for future payments based on the interest rate and the principal monthly balance. This plays a major role in what you’ll ultimately pay.