Loan Payment Calculator

A fixed-rate loan uses an amortization formula that sets one constant payment covering both interest and principal, sized so the balance reaches exactly zero on the final payment. Early payments are mostly interest because the balance is large; later payments are mostly principal. This calculator shows the payment along with how much total interest the schedule produces over the full term.

Because interest is charged on the outstanding balance every month for decades, and on a 30-year loan that balance stays high for well over a decade before it starts falling quickly. At typical rates, total interest on a 30-year mortgage can exceed the amount borrowed. Shortening the term or paying extra toward principal both cut it substantially, since either one reduces the time the balance stays large.

The interest rate is the cost of borrowing the money itself, expressed as a yearly percentage, and it's what this calculator uses to find the monthly payment. The APR (annual percentage rate) folds in additional lender fees, such as origination charges or mortgage points, giving a fuller picture of the loan's true annual cost. Comparing two loans by APR, not just the quoted rate, is a more accurate way to spot the cheaper offer.

Not always, so it's worth confirming with the lender. Some servicers apply extra money to next month's payment by default instead of reducing the principal balance immediately, which erases most of the benefit. The Consumer Financial Protection Bureau specifically advises borrowers making extra payments to check that the additional amount is credited straight to principal, sometimes by marking the payment or contacting the servicer directly.

On a $300,000 loan at 6.5% over 30 years, adding $200 a month toward principal from the first payment onward cuts total interest from $382,633 to about $279,185, a savings of roughly $103,000, and pays the loan off around 6.9 years early. The exact savings depend on the loan's rate, balance, and how early the extra payments start, since money applied earlier stops more future interest from accruing.

Often, yes, because paying half the monthly payment every two weeks results in 26 half-payments a year, the equivalent of 13 full monthly payments instead of 12. That extra payment goes entirely to principal, which shortens the loan and lowers total interest similarly to a modest extra-principal strategy. Not every servicer supports true biweekly billing without a fee, so it's worth checking the loan's specific terms first.

A fixed-rate loan locks in one interest rate for the entire term, so the payment calculated here never changes. An adjustable-rate loan (ARM) starts with a lower introductory rate for a set period, often five or seven years, then adjusts at regular intervals based on a market index plus the lender's margin, meaning the payment can rise or fall afterward. This calculator's fixed-payment math applies fully only during an ARM's initial fixed period.

Usually, but not always. Government-backed mortgages (FHA, VA, USDA) are prohibited from carrying prepayment penalties entirely. A narrow category of other fixed-rate qualified mortgages is legally allowed to include one, but only capped at 2% of the balance in the first two years and 1% in the third, disappearing after that. Auto and personal loans vary more by lender, so it's worth checking the loan agreement's prepayment clause directly.

Most lenders allow a short grace period before charging a late fee, set by the loan contract and state law. Many servicers wait until a payment is 30 days past due before reporting it to credit bureaus, but once reported, a late payment can stay on a credit report for up to seven years. For mortgages specifically, federal servicing rules treat 30 days late as the start of delinquency, with foreclosure proceedings possible after 120 days.

Interest is calculated fresh each month as the current balance times the monthly rate, and early in the loan that balance is at its highest. On a $300,000 loan at 6.5%, the very first month's interest alone is $1,625, out of a $1,896.20 payment. As the balance slowly falls each month, the interest charge shrinks with it, freeing up a larger share of every fixed payment to reduce principal instead.

Substantially. A shorter term raises the monthly payment but sharply cuts total interest, since the balance is cleared faster and has less time to accrue interest. On the same $300,000 loan at 6.5%, a 15-year term costs more per month than a 30-year term but pays off with far less total interest over the life of the loan. Comparing both terms side by side is often the clearest way to see the real trade-off.

Using an illustrative 8% annual rate over a 5-year term, a $10,000 loan works out to about $202.76 a month, with roughly $2,165.60 in total interest over the full term. That's just one example, not a quote: the real payment depends entirely on your actual rate and term, since a shorter term raises the monthly amount but lowers total interest. Enter your own numbers into the calculator above for an exact figure rather than this illustrative case.

At the same illustrative 8% annual rate over 5 years, a $20,000 loan comes to about $405.53 a month, with total interest around $4,331.80 by the time it's paid off. Because the math scales linearly with the amount borrowed at a fixed rate and term, this is simply double the $10,000 example. Your actual payment will differ based on your real interest rate, term length, and any fees your lender folds into the loan.

At an illustrative 8% annual rate over a 5-year term, a $25,000 loan runs about $506.91 a month, with total interest of roughly $5,414.60 across the 60 payments. A different rate moves this quickly: even a couple of percentage points higher, common for borrowers with lower credit scores, raises both the payment and the total interest noticeably. Plug your loan's actual rate and term into the calculator above for a precise number.

At an illustrative 8% annual rate over a 5-year term, a $30,000 loan costs about $608.29 a month, with total interest of roughly $6,497.40 over the life of the loan. Stretching the same loan to a longer term would lower that monthly figure but increase the total interest paid, while a shorter term does the reverse. These are example numbers only — the calculator above uses your actual loan amount, rate, and term.

Yes. EMI, or equated monthly installment, is simply the term used for this same fixed monthly payment in India, the UK, and several other markets outside the U.S. The underlying math is identical: a constant payment that splits between shrinking interest and growing principal until the balance reaches zero. If you're comparing an offer quoted as an EMI against a U.S. loan quote, the numbers this calculator produces translate directly, since amortization is a universal method, not a regional one.