Last reviewed November 4, 2026 by the Silverback Capital funding team.
Enter the amount, the interest rate and the term to see the payment on a business loan, monthly, weekly or daily. The calculator also shows the total interest, a year-by-year amortization summary, the effect of any origination fee on the APR, and a side-by-side comparison with a second offer.
Worked example. A $100,000 business loan at 11% a year over five years costs $2,174.24 a month, $30,455 in total interest.
Repaid weekly instead, the same loan is $500.43 a week (about $2,169 a month). Repaid every business day, it is $103.20 a day (about $2,167 a month). The rate and term are unchanged, so the cost barely moves; what changes is how often money leaves the account.
How a business loan payment is calculated
Most business term loans are amortized: every payment is the same, and each one covers that period’s interest plus a slice of the principal. The payment comes from the standard formula payment = P × r ÷ (1 − (1 + r)−n), where P is the amount borrowed, r is the annual rate divided by the number of payments a year, and n is the total number of payments.
For the worked example, r is 11% ÷ 12 and n is 60. The calculator does the same for weekly schedules (52 payments a year) and daily schedules (about 252 business days a year). Total interest is simply every payment added up, minus the amount borrowed.
Monthly, weekly or daily payments
At the same annual rate and term, the payment frequency hardly changes the total cost. In the example, monthly, weekly and daily schedules all land within about $500 of each other in total interest, because more frequent payments pay the balance down slightly faster.
Frequency matters for cash flow. A monthly payment lets the account build up between due dates. A daily debit leaves the account around 21 times a month, so every slow day is felt immediately. The monthly cash out figure converts any schedule into a monthly equivalent, so you can compare it with your monthly revenue and your other fixed costs. A useful test: would the payment still be comfortable in your slowest month of the last year?
Reading the amortization summary
The summary groups payments by year. Early on, a larger share of each payment goes to interest, because interest is charged on a larger balance. Over time the balance falls, interest shrinks and more of each payment reduces principal. In the example, the first year pays about $10,215 of interest and the last year about $1,490. This is also why paying a loan off early saves real money on an amortizing loan, unless the agreement has a prepayment penalty. Ask before you sign.
Comparing two offers
Two offers for the same amount can look similar and cost very different amounts. Line them up on four things: the money you actually receive after fees, the payment and how often it is taken, the total cost in dollars, and the estimated APR including fees. In the default comparison, Offer B costs less in total dollars because it is repaid in 18 months instead of 60, but its monthly cash out is about three times higher and its APR is more than double. Neither is automatically better. The right one is the one your cash flow can carry at the lowest total cost.
Why fees change the APR
An origination fee is usually deducted from the money you receive, while the payments are still based on the full amount. You pay interest on money you never got, so the true annual cost rises above the stated rate. The same $100,000 loan at 11% over five years with a 3% fee works out to an estimated APR of about 12.3%. The calculator finds that figure by solving for the rate that matches your payments to the money you actually receive.
When the rate on an offer is not an interest rate
This calculator is for loans quoted with an annual interest rate. Revenue-based funding and merchant cash advances are priced with a factor rate instead, and a merchant cash advance is a purchase of future receivables, not a loan. Use the MCA calculator for those; it converts a factor rate into a payment and an estimated APR so the two can be compared on the same footing.
What we look at
The payment an offer can carry is decided mostly by your bank statements. We look at average monthly revenue, time in business, how steady the deposits are, and any funding already being repaid. For longer-term and SBA and term loans, credit history and business financials matter more; for a revolving line of credit you pay interest only on what you draw.
Common questions
How is a business loan payment calculated?
With the standard amortization formula: payment = P × r ÷ (1 − (1 + r)−n), where P is the loan amount, r is the annual rate divided by the number of payments a year, and n is the number of payments. A $100,000 loan at 11% over 60 months works out to $2,174.24 a month.
Is a daily or weekly payment cheaper than a monthly one?
Only slightly, at the same rate and term, because more frequent payments reduce the balance a little faster. The bigger difference is cash flow: daily payments leave your account around 21 times a month, so compare the monthly cash out with your slowest month, not your average one.
What is the difference between the interest rate and the APR?
The interest rate sets the payment. The APR also counts upfront fees, which are usually deducted from the money you receive. A loan with an origination fee therefore has an APR above its stated rate, and the APR is the better number for comparing offers.
Can I use this calculator for an SBA loan or an equipment loan?
Yes, for the payment and total interest, as long as the rate is fixed. Enter the rate and term from your quote and put any guarantee or packaging fee in the fee field. For equipment with a down payment or a balloon at the end, the equipment financing calculator handles both.
Can I use it for a merchant cash advance?
No. A merchant cash advance is priced with a factor rate and is a purchase of future receivables, not a loan, so there is no interest rate to enter. Use the MCA calculator, which converts a factor rate into a payment and an estimated APR.
Read next: The cost of business funding · SBA & term loans · Alternatives to bank loans · Working capital
More free calculators: MCA calculator · How much funding can I get? · Equipment financing calculator
Want to see what your business would actually be offered? Checking what you qualify for takes about 60 seconds, uses a soft credit pull only, costs nothing to apply and carries no broker fees. Start an application or request a callback if you would rather talk it through.