Introduction
The Mortgage Balance Calculator shows how much you still owe on your home loan today. You enter your original loan amount, your interest rate, your loan term, and your monthly principal and interest payment. Then you tell the tool where you are in the loan — by your first payment date, by how many payments you have made, or by how many payments are left.
In one click you get your remaining mortgage balance, the total interest you have paid so far, how much principal you have paid down, and how many payments you have left. If you add your home value, you also see your loan-to-value (LTV) ratio and your current home equity.
You also get a step-by-step math breakdown, charts of your balance over time, and a full amortization schedule month by month. This helps you check your lender's statement, plan a refinance, see when you can drop PMI, or decide if paying extra makes sense.
This tool is built for fixed-rate mortgages only. It uses principal and interest — not taxes, insurance, HOA fees, or PMI. Results are close estimates, so always confirm your exact payoff amount with your lender. If you want to work out a brand-new loan payment instead, start with the Mortgage Calculator, or use the Loan Balance Calculator for non-mortgage debts.
How to use our Mortgage Balance Calculator
Enter your loan details and tell us where you are in the payment schedule. The calculator shows your remaining mortgage balance, how much you have paid, how much interest is left, your equity, and a full amortization schedule.
Appraised Home Value (optional): Type what your home is worth today. This is used to work out your loan-to-value (LTV) and your home equity. You can leave it blank.
Down Payment (optional): Type the cash you paid at closing. The calculator takes this off the home value to fill in your loan amount. Not sure how much to put down on a future purchase? Try the Down Payment Calculator.
Original Loan Amount (Principal): Enter the amount you first borrowed. It fills in on its own from home value minus down payment, but you can type your own number.
Annual Interest Rate (%): Enter the fixed rate on your loan papers, like 6.5. Use the note rate, not the APR. This tool is for fixed-rate loans only.
Loan Term (Years): Enter how many years your loan runs, such as 15, 20, or 30. You can compare the two most common terms with the 15-Year Mortgage Calculator and the 30-Year Mortgage Calculator.
Monthly Payment (P&I Only): Enter your principal and interest payment. Do not add taxes, home insurance, HOA fees, or PMI. The tool works this out for you, but you can change it. For the full escrowed payment, see the PITI Calculator.
Option 1 — First Payment Date: Pick the month and year your first payment was due. The calculator counts the payments from then until today.
Option 2 — Payments Already Made: Choose this instead and type how many monthly payments you have made. Twelve payments equals one year.
Option 3 — Payments Remaining: Choose this instead and type how many payments are still left, as shown on your mortgage statement.
Calculate: Click it to see your results. Use Table View for the numbers or Plain English View for a simple summary, and tick Show Full Amortization Schedule to see every payment. Click Reset to start again.
What Is a Mortgage Balance?
Your mortgage balance is the amount you still owe on your home loan. It is not the same as the price of your house or the amount you first borrowed. Every month you make a payment, and part of that payment lowers the balance. The rest pays interest to the lender.
How Your Payment Splits
A fixed-rate mortgage payment stays the same each month, but the split inside it changes. Each month the lender charges interest on the balance you owe right now. Whatever is left over from your payment goes to principal, which is the real loan amount. The Mortgage Interest Calculator shows how that interest charge is built each month.
Early on, the balance is big, so most of your payment goes to interest. Later, the balance is small, so most of your payment goes to principal. This slow shift is called amortization. It is why your balance drops slowly in the first years and much faster near the end. The Amortization Calculator lays out that pattern for any loan.
Why Knowing Your Balance Matters
- Selling your home: Your balance is what gets paid off at closing. What is left is yours — the Home Sale Calculator estimates your net proceeds after costs.
- Refinancing: Lenders base a new loan on what you still owe. Compare offers with the Refinance Mortgage Calculator or pull cash out with the Cash-Out Refinance Calculator.
- Home equity: Equity is your home's value minus your balance. It grows as you pay down the loan or as home prices rise, and it can be borrowed against with a home equity loan or a HELOC.
- Dropping PMI: Many lenders remove private mortgage insurance once you owe 80% or less of the home's value.
Loan-to-Value (LTV)
LTV compares what you owe to what your home is worth. If you owe $300,000 on a home worth $400,000, your LTV is 75%. A lower LTV usually means better loan offers and more equity in your pocket. Lenders also look at your debt-to-income ratio alongside LTV when approving a new loan.
Principal and Interest Only
Use only your principal and interest (P&I) payment, not your full monthly bill. Most people also pay property taxes, homeowners insurance, HOA dues, and sometimes PMI through an escrow account. Those costs do not lower your loan balance, so leaving them out keeps the math correct.
Fixed-Rate Loans Only
These numbers work for fixed-rate mortgages, where the rate never changes. Adjustable-rate mortgages (ARMs) change rates over time, so the payment split and balance move in ways this math cannot predict. Interest-only loans behave differently too — see the Interest-Only Mortgage Calculator for those.
Ways to Pay Down the Balance Faster
Extra money sent toward principal cuts your balance right away and saves interest for the rest of the loan. Even one extra payment a year can shorten a 30-year mortgage by several years — the Biweekly Mortgage Calculator shows how switching payment frequency does much the same thing. Ask your lender to apply extra funds to principal, not to next month's payment, and use the Mortgage Payoff Calculator or Early Mortgage Payoff Calculator to see your new payoff date. If you make a large one-time principal payment, a mortgage recast can lower your monthly payment too.
Small Differences Are Normal
Your real payoff amount may differ a little from an estimate. Lenders may round cents, use a slightly different payment date, or add fees and daily interest to a payoff quote. Always ask your servicer for an official payoff statement before you sell or refinance. If you are looking at buying next instead, the Home Affordability Calculator and Closing Cost Calculator are good next steps.