Business Loan Calculator

Using the calculator is straightforward. You'll need three pieces of information to get started:

• Loan amount: The total amount you want to borrow.
• Annual interest rate (APR): The yearly rate your lender is charging. Make sure you're using the APR, not just the base interest rate, for the most accurate result.
• Loan term: How long you'll take to repay the loan, usually expressed in months or years.

Enter those values and the calculator will instantly show your estimated monthly payment, total interest paid, and total repayment amount. If the numbers don't look right for your budget, adjust the term or loan amount and recalculate. It's worth running a few different scenarios so you understand the trade-offs before you start talking to lenders.

The monthly payment on a standard business loan is calculated using what's called an amortizing payment formula. Here's what it looks like:

M = P × [r(1 + r)^n] / [(1 + r)^n - 1]

Breaking that down into plain English:

• M is your monthly payment.
• P is the principal (the amount you borrowed).
• r is your monthly interest rate (annual rate divided by 12).
• n is the total number of payments (months in the loan term).

So if you borrow $50,000 at a 7% annual rate over 60 months, your monthly rate is 0.07 / 12 = 0.00583. Plug all of that into the formula and you get a fixed monthly payment around $990. The formula ensures each payment covers both interest and a portion of the principal, with the interest share shrinking over time as the balance drops.

Your monthly payment has two parts every single month: interest and principal. Early in the loan, a bigger chunk goes toward interest because you still owe a lot. As you pay down the balance, the interest portion shrinks and more of each payment chips away at the principal. That's just how amortization works.

Here's a quick example using a $100,000 loan at 8% APR over 5 years (60 months):

That total interest figure is what people often underestimate when they're shopping for loans. A seemingly small difference in interest rate, say 8% versus 10%, can add several thousand dollars to your total cost on a loan this size. Always look at the total interest paid, not just the monthly payment.

These three variables work together, and pulling on one always affects the others. Here's how each one plays out in practice.

Loan amount: Borrowing more means a higher monthly payment and more interest paid overall. Pretty obvious, but it's worth being precise about how much you actually need rather than rounding up to a nice number.

Loan term: A longer term lowers your monthly payment, which can help cash flow. But you'll pay more in total interest because you're carrying the balance longer. Shorter terms cost more each month but save money in the long run.

APR: Even a one or two percentage point difference in rate has a meaningful impact over multi-year loans. A $75,000 loan at 9% versus 12% over 5 years is roughly a $5,000 difference in total interest paid. That's real money.

The sweet spot is a term and loan amount that keeps your monthly payment manageable without stretching the repayment period so long that you're paying a ton in interest. Use the calculator to test different combinations until you find something that fits your cash flow.

An amortization schedule is a full table showing every single payment over the life of your loan. For each payment, it breaks out how much goes to interest, how much goes to principal, and what your remaining balance is after that payment. It's basically a roadmap of your debt.

Why does it matter? A few reasons. First, it helps you see exactly when you'll cross certain balance thresholds, which is useful if you're planning to refinance or pay off the loan early. Second, if your loan carries a prepayment penalty, knowing the schedule helps you figure out the right time to make extra payments. Third, the interest portion of each payment may be tax-deductible for your business, so having the schedule makes tax time a lot cleaner.

Most lenders will provide an amortization schedule when you close on a loan. You can also generate one using this calculator or a spreadsheet. The key columns to look for are payment number, payment amount, interest paid, principal paid, and ending balance.

The two most common routes for business borrowers are SBA loans and traditional bank or alternative lender loans. They're not the same thing, and which one makes sense depends on your situation.

SBA loans are usually the better deal if you qualify, thanks to lower rates and longer terms. But if you need capital fast or don't meet the tighter credit requirements, a traditional term loan or line of credit from an online lender might be the more practical choice. Speed and flexibility come at a cost, though, and that cost shows up in higher rates.

The monthly payment is the number most borrowers focus on, but total borrowing cost is the number that actually tells you how expensive a loan is. Total cost is simply the sum of every payment you'll make, which equals your principal plus all the interest charged over the full term.

Here's why this matters: two loans can have the same monthly payment but very different total costs. A lender offering a lower rate over a longer term might have a comparable monthly payment to a higher-rate short-term loan, but the long-term loan ends up costing more overall because interest accumulates over more months.

Some fees also factor into true borrowing cost. Origination fees, closing costs, and annual maintenance fees all add up. An origination fee of 2% on a $200,000 loan is $4,000 right off the top. When you're comparing loan offers, add those fees into your cost analysis, not just the stated APR.

A clean way to compare two offers is to calculate the total amount you'll pay from start to finish on each, including all fees. The loan with the lower total is usually the better deal, assuming the monthly payment still fits your cash flow.

There's no single best loan for every business. What works for a retail shop needing equipment financing looks very different from what a startup needs to cover operating costs. That said, a few principles apply pretty broadly.

• Know your number before you apply. Use the calculator to figure out the maximum monthly payment your cash flow can handle, then work backward to a loan amount and term that fits.
• Compare at least three lenders. Rates and terms vary more than most people expect. Getting multiple quotes takes a few extra hours but can save thousands over the loan's life.
• Read the fine print on fees. Origination fees, prepayment penalties, and late fees can all affect your real cost. Ask each lender for a full fee schedule in writing.
• Match the loan term to your purpose. Short-term needs like inventory or a cash flow gap should use short-term financing. Long-term investments like equipment or real estate should use longer repayment terms so the cost aligns with the asset's useful life.
• Check your credit before applying. Both your personal and business credit scores affect your rate. If your score is on the lower end, it may be worth spending a few months improving it before you apply for a larger loan.
• Don't borrow more than you need. It's tempting to take the maximum offer, but every extra dollar borrowed costs you in interest. Be specific about what you need the capital for.

Taking the time to run the numbers and compare options isn't the most exciting part of growing a business, but it's one of the highest-return things you can do with a few hours of your time.