Real math, no funnel.
Straightforward mortgage math, no strings attached. These tools show you the real numbers — the ones that don’t always make it into a sales pitch — so you can decide with the full picture. Built and maintained by Matt Mergo · Forest Hills Mortgage · NMLS #563819
Buy & afford
Mortgage Calculator
Estimate your monthly payment — principal, interest, taxes, and insurance — and see how rate, term, and down payment move the number.
Open the tool → CalculatorHome Affordability
Work backward from your income and debts to a real price range — the full payment included, so it’s a number that actually holds up.
Open the tool → CalculatorPayment to Price
Have a monthly payment in mind? Work backward from it — taxes and insurance included — to the home price that actually fits.
Open the tool → CalculatorRent vs. Buy
The honest break-even between renting and buying — maintenance, taxes, and the opportunity cost of your down payment included, not just payment versus rent.
Open the tool →Costs & comparing offers
Cash to Close
Your down payment is only part of it. Add closing costs, title, PA transfer tax, escrow setup, and prepaid interest — then subtract your deposit — to see the real number you bring to the table.
Open the tool → CalculatorEscrow & Prorations
Pick your state, enter your real tax bills — or just your assessed value in Allegheny, Butler, and Washington counties — and see your escrow deposit, prorations, and the month-by-month disclosure before the lender generates it.
Open the tool → CalculatorAPR Calculator & Decoder
Enter a quote’s rate and APR and see how much in points and fees is buried in the gap — or build an APR from a rate and its costs.
Open the tool → CalculatorDiscount Points
When does permanently buying down your rate actually beat keeping the cash? Run the break-even on points before you commit.
Open the tool → CalculatorCompare Loan Estimates
Drop in two or more Loan Estimates and line up Section A and the rate — the escrow noise stripped out — so you compare the loan itself, not the headline number.
Open the tool → CalculatorPA Transfer Tax & Closing Cost
Pennsylvania buyers: estimate realty transfer tax by county and municipality — often the single biggest line at a PA closing — plus the rest of your closing costs.
Open the tool →Refinance
Blended Rate Calculator
Your true blended rate across every debt — and whether a cash-out refinance or a second mortgage costs less when your first loan sits at a low rate.
Open the tool → CalculatorRefinance Break-Even
See how long a refinance takes to pay for itself — plus the honest lifetime-interest comparison most calculators quietly skip.
Open the tool → CalculatorARM Adjustment
Your adjustable rate is resetting. See the new rate and payment with today’s index filled in, where it goes at the next adjustments, and whether refinancing beats it.
Open the tool → CalculatorRefinance Buydown Calculator
Compare what a 2-1 or 1-0 temporary buydown actually costs against taking the same rate as a lender credit — side by side, on your own loan.
Open the tool →Pay down your loan
Extra Payment
See what an extra hundred or two a month does to your payoff date and total interest. It’s usually more than people expect.
Open the tool → CalculatorPrincipal Balance
Find out exactly what you still owe — and how much has gone to principal versus interest — at any point in the loan.
Open the tool → CalculatorRecast Calculator
Put a lump sum toward principal and see your new payment at the same rate and payoff date — plus the honest comparison against keeping your payment and finishing early.
Open the tool →Specialized loans
VA Funding Fee
See your exact VA funding fee by first or repeat use, down payment, and exemption — and what it costs financed into the loan. With a disability rating, it’s zero.
Open the tool → CalculatorReverse Mortgage Calculator
For homeowners 62 and older. Estimate HECM proceeds from HUD’s actual factor table — with the real upfront costs deducted, and the credit-line growth shown honestly.
Open the tool → CalculatorReverse Mortgage vs. HELOC
For homeowners weighing the two. Put a HECM and a home-equity line side by side — upfront cost, monthly payment, and access to cash — and see which one actually fits.
Open the tool → CalculatorDSCR Calculator
For rental property. Enter the price, financing, and projected rent to see whether the rent covers the payment — and which DSCR tier the deal lands in.
Open the tool → CalculatorRental Return Calculator
For rental property. Enter price, financing, rent, and costs to see monthly cash flow, cash-on-cash return, and the full cash to close — with PA transfer tax figured by municipality.
Open the tool →Get your file ready
Document Checklist
Answer a few questions about your income, your down payment, and your situation, and get the exact list of documents to gather — built to surface the wrinkles, like foreign property or a co-owned home, before they cost you time.
Open the tool → ToolBank Statement Instructions
Pick your bank — 19 preloaded, from Chase to Fidelity to Robinhood — choose interim or full statements for each account, and get the exact steps in the format underwriting accepts: PDF, every page, never CSV.
Open the tool →