How to use
- Replace the example inputs with your loan and property figures.
- Select Calculate to update the estimate and any schedule.
- Change one assumption at a time, then compare the result with the earlier scenario.
How this calculation works
The full loan schedule is built from the original balance, rate and term. The selected payment row reports remaining principal, principal already repaid and cumulative interest. Zero completed payments returns the original balance.
Remaining balance = original principal − cumulative scheduled principal
Worked example
Illustrative inputs — not a quote or a local average.
- Original loan amount
- $320,000.00
- Interest rate
- 6.5 %
- Original loan term
- 30 years
- Payments already made
- 60 months
Remaining balance: $299,555.13. Principal repaid: $20,444.87. Interest paid: $100,912.19.
Reading the result
Compare the estimated balance with a statement only when the underlying payment history matches. If you have made extra principal payments, use the extra-payment schedule instead. A lower balance can reflect faster repayment without any change to the required monthly amount.
Before acting on the estimate
This is a scheduled balance, not a payoff quote. Daily accrued interest, late fees, modifications and deferred amounts can change what is required to satisfy the loan. Use a dated statement from the servicer for a sale or refinance closing.

Questions, answered
Which balance belongs in the input?
Use the original loan amount for the elapsed-payment schedule.
Does the number include future interest?
No. It is unpaid principal, not the sum of remaining installments.