WebToolArcHow to use this Remaining Loan Balance Calculator
Enter the original loan, APR, term, and payments already made to estimate today’s remaining balance and principal repaid.
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Remaining Loan Balance Calculator
Enter the original loan, APR, term, and payments already made to estimate today’s remaining balance and principal repaid.
Loan position
Where is your balance now?
Enter the loan as it began, then choose how many monthly payments you have made.
Move through the loan24 of 60 payments
Remaining principal
Your estimated balance
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Enter your loan terms to calculate the scheduled balance.
—Scheduled payment
—Principal repaid
—Interest paid so far
—Estimated payments left
This is scheduled principal after a payment, not a lender payoff quote. A payoff quote can add accrued interest and fees.
See how the balance falls
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The curve is intentionally not a straight line: early payments usually send more money to interest, while later payments reduce principal faster.
Match your lender’s monthly payment
If your statement payment differs slightly from the payment implied by the original rate and term, use the actual principal-and-interest payment here. Do not include taxes, insurance, or unrelated fees.
Estimate a payoff amount today
A lender payoff is usually the scheduled principal plus interest accrued since the last payment and any lender fees. This optional estimate uses a simple 365-day accrual and is not a substitute for an official payoff quote.
Estimated accrued interest—
Estimated payoff today—
Amortization & export
| Year / payment | Payments | Paid | Principal | Interest | Balance |
|---|
Formula & assumptions
The default calculation assumes a fixed annual interest rate, monthly payments, no missed or extra payments, and a level payment derived from the original principal, rate, and term.
Bₖ = P(1+r)ᵏ − M × ((1+r)ᵏ − 1) / r
Bₖ is the remaining principal after payment k, P is original principal, r is the monthly rate, and M is the monthly principal-and-interest payment. A lender payoff quote can differ because of daily accrued interest, fees, payment timing, rate changes, or other loan-specific rules.
Core borrowing, saving & investing workflows
Start with the broad calculator that matches the decision, then move to a specialist only when the loan structure, cash flow, tax treatment, debt strategy or savings goal genuinely changes.
Mortgage CalculatorHome payment, taxes, PMI & payoffLoan CalculatorFixed payment, interest & feesCompound InterestCompounding & recurring contributionsSavings CalculatorDeposits, APY & goalsAuto LoanVehicle price, tax & financingAmortizationPayment schedule & total interestRetirementContributions, inflation & incomeInvestmentReturns, fees & target growth
From today: extra-payment payoff comparison
Start from the estimated balance produced by the primary calculator, keep the scheduled payment unchanged, and compare baseline versus extra-principal payoff from this point forward.
—Baseline payoff
—Scenario payoff
—Future interest saved
—Months saved
Ready.
Use this result with confidence
The balance estimate assumes the scheduled amortization model stayed unchanged
The mathematical balance after a number of payments assumes the original principal, APR, term, payment frequency, and scheduled-payment formula still describe the loan. Fees, payment holidays, rate changes, late payments, lender rounding, escrow, or capitalization can make a statement balance differ. Use the lender statement as authoritative when an exact payoff figure is required.
Separate principal already repaid from interest already paid
The drop in outstanding balance shows principal reduction, not the total amount paid so far. Early payments on many amortizing loans contain a larger interest share, so cash paid can be much higher than principal repaid. When comparing refinance or payoff options, look at future interest and remaining term rather than treating principal reduction as total borrowing cost.
Extra-payment scenarios should start from the current estimated balance
If you are evaluating additional principal payments after several scheduled payments have already occurred, model the future from the current balance and remaining periods instead of restarting the original loan. Keep the normal scheduled payment unchanged unless the lender actually recasts the loan. This makes baseline and accelerated payoff timelines comparable on the same starting point.
Payoff savings are estimates until lender rules are applied
An extra-payment simulation can show approximate months and future interest saved, but lender-specific allocation rules, prepayment restrictions, exact posting dates, daily-interest methods, and statement rounding can change the result. Confirm that extra amounts are applied to principal and obtain an official payoff quote before making a decision that depends on an exact date or amount.