This business loan calculator from Quarryfield Capital Group, a small-business funding broker in Hillsboro, Oregon, estimates the monthly payment, total interest and total repaid on an amortizing loan from the amount, annual rate and term you enter. The figures it shows are math on your inputs, never a quote. Lending partners make credit decisions and set rates and terms.
The three inputs
- Amount: the principal you would borrow, before any charges are deducted.
- Annual rate: the yearly interest rate stated in the offer, as a percentage.
- Term: the number of months until the final payment.
The calculator assumes equal monthly payments on an amortizing loan, the structure most term loans use.
The three results
Monthly payment is what leaves the account each month. Total interest is everything paid beyond the principal. Total repaid is the two combined. Of the three, total repaid is the one to compare between offers; the monthly payment is the one to check against your deposits.
A hypothetical comparison
These figures are hypothetical, chosen only to show how term changes cost. On $30,000 at a 10% annual rate, a 24-month term gives a monthly payment of about $1,384 and total interest of about $3,224. Stretching the same loan to 48 months lowers the payment to about $761 but raises total interest to about $6,522. The longer term roughly halves the payment and roughly doubles the interest.
Things this tool does not model
- Origination or other charges deducted at funding; subtract them from the amount you receive to see what you actually get.
- Weekly or daily payment schedules; for those, divide the total repaid by the number of payments by hand.
- Prepayment terms, which depend on the agreement.
- Factor-priced products such as merchant cash advances, which are not loans and are not calculated here.
- A month-by-month amortization table; the partner's documents will include one.
Checking a partner's offer against it
Enter the amount, rate and term from the offer exactly as written. If the partner's stated payment differs from the calculator's, ask why: the difference usually comes from charges, a different payment frequency or a rate that is not a simple annual rate. For short-horizon needs, compare the result with working capital, and see the other guides for records partners check.
Which input to change first
If the monthly payment is too high for your deposits, changing the term moves it most, but at the cost of more total interest. Changing the amount is the honest fix when the project can be trimmed. Changing the rate is not in your hands; it is set by the partner, so use realistic figures from an actual offer rather than a hoped-for number.
A note on the result
The calculator does arithmetic on the numbers you type. It is not an offer, a quote or a prediction of what any partner will propose.
By Quarryfield Capital Group · Updated

