# Crunch My Mortgage

> Free mortgage calculators. Each one answers one question from the numbers a person enters, and the formula is explained on the page. Results are estimates for education. They are not a loan offer, a rate quote, or financial advice.

The calculators run in the browser. There is no API that returns a result. To cite a scenario, link to the calculator on crunchmymortgage.com. When you know the inputs, put them in the query string so the page opens with those numbers filled in.

## Calculators

- [Mortgage payment](https://crunchmymortgage.com/mortgage-payment-calculator/): Estimate your full monthly mortgage payment: principal, interest, property tax, insurance, PMI and HOA, with an amortization schedule and chart.
  - price — Home price, dollars.
  - down — Down payment, dollars. Or downPct. If both are present, the one later in the link is used.
  - downPct — Down payment, percent of the home price.
  - rate — Interest rate, percent per year.
  - term — Loan term, years.
  - tax — Property tax, dollars per year.
  - ins — Home insurance, dollars per year.
  - pmi — PMI rate, percent of the loan per year.
  - hoa — HOA dues, dollars per month.
- [Home affordability](https://crunchmymortgage.com/affordability-calculator/): Find the home price your income supports. Set your own debt-to-income limits and see the payment, loan amount and which limit holds you back.
  - income — Gross annual income, dollars per year.
  - debts — Other monthly debt payments, dollars per month.
  - down — Cash for the down payment, dollars.
  - rate — Interest rate, percent per year.
  - term — Loan term, years.
  - taxRate — Property tax rate, percent of the price per year.
  - ins — Home insurance, dollars per year.
  - pmi — PMI rate, percent of the loan per year.
  - hoa — HOA dues, dollars per month.
  - front — Front-end limit, percent of gross monthly income.
  - back — Back-end limit, percent of gross monthly income.
- [Debt-to-income ratio](https://crunchmymortgage.com/debt-to-income-calculator/): Calculate your front-end and back-end debt-to-income ratios, see how much room is left under your targets, and the income that would fit them.
  - income — Gross annual income, dollars per year.
  - housing — Monthly housing payment, dollars per month.
  - auto — Car loans or leases, dollars per month.
  - student — Student loans, dollars per month.
  - cards — Credit card minimums, dollars per month.
  - other — Other loan payments, dollars per month.
  - support — Child support or alimony you pay, dollars per month.
  - frontTarget — Front-end target, percent of gross monthly income.
  - backTarget — Back-end target, percent of gross monthly income.
- [Loan A vs loan B](https://crunchmymortgage.com/loan-comparison-calculator/): Compare two mortgage offers side by side: payment, upfront costs, interest and total cost over the years you plan to keep the loan, plus a break-even.
  - aAmount — Loan A amount, dollars.
  - aRate — Loan A rate, percent per year.
  - aTerm — Loan A term, years.
  - aPoints — Loan A points, percent of the loan amount.
  - aFees — Loan A other fees, dollars.
  - bAmount — Loan B amount, dollars.
  - bRate — Loan B rate, percent per year.
  - bTerm — Loan B term, years.
  - bPoints — Loan B points, percent of the loan amount.
  - bFees — Loan B other fees, dollars.
  - horizon — Years until you sell or refinance, years.
- [Mortgage recast](https://crunchmymortgage.com/recast-calculator/): See your new monthly payment after a mortgage recast, the interest you save, and how recasting compares with prepaying and keeping the same payment.
  - amount — Current balance, dollars.
  - rate — Interest rate, percent per year.
  - term — Years remaining, years (decimals allowed).
  - lump — Lump sum toward principal, dollars.
  - fee — Recast fee, dollars.
- [Points break-even](https://crunchmymortgage.com/points-break-even-calculator/): Work out how long it takes for discount points to pay for themselves, and what they save or cost over the years you expect to keep the loan.
  - amount — Loan amount, dollars.
  - term — Loan term, years.
  - rate — Rate without points, percent per year.
  - pointsRate — Rate with points, percent per year.
  - points — Points, points (1 point costs 1% of the loan).
  - horizon — Years you expect to keep the loan, years.
- [Temporary buydown](https://crunchmymortgage.com/temporary-buydown-calculator/): Calculate payments and total cost for 2-1, 3-2-1, 1-1 and 1-0 temporary rate buydowns, year by year, compared with the full note-rate payment.
  - amount — Loan amount, dollars.
  - rate — Note rate, percent per year.
  - term — Loan term, years.
  - type — Buydown type, one of the values below. Allowed values: 3-2-1, 2-1, 1-1, 1-0.
- [Extra payments](https://crunchmymortgage.com/extra-payment-calculator/): See how extra monthly, yearly or one-time payments shorten your mortgage and how much interest they save, or what it takes to be done by a target year.
  - amount — Loan balance, dollars.
  - rate — Interest rate, percent per year.
  - term — Years remaining, years.
  - extra — Extra every month, dollars per month.
  - lump — One-time amount, dollars.
  - lumpAt — One-time payment number, payment number (1 is the next payment).
  - yearly — Extra once a year, dollars per year.
  - goal — Debt-free in, years. 0 turns this off.
- [Biweekly payments](https://crunchmymortgage.com/biweekly-payment-calculator/): Compare biweekly and monthly mortgage payments: how much sooner a biweekly schedule pays off the loan and how much interest it saves.
  - amount — Loan balance, dollars.
  - rate — Interest rate, percent per year.
  - term — Years remaining, years.
- [Interest-only and HELOC](https://crunchmymortgage.com/interest-only-heloc-calculator/): Calculate interest-only and HELOC draw-period payments, the jump when repayment starts, and the extra interest compared with a regular amortizing loan.
  - amount — Amount borrowed, dollars.
  - rate — Interest rate, percent per year.
  - io — Interest-only or draw period, years. 0 means there is no interest-only period.
  - repay — Repayment period, years.
- [Refinance break-even](https://crunchmymortgage.com/refinance-break-even-calculator/): Find when a refinance pays for itself, counting closing costs, payment savings and loan balance, and whether it costs more over the life of the loan.
  - amount — Current balance, dollars.
  - rate — Current rate, percent per year.
  - term — Years left, years.
  - newRate — New rate, percent per year.
  - newTerm — New term, years.
  - costs — Closing costs, dollars.
  - pay — Closing costs are, cash or roll. Allowed values: cash, roll.
- [PMI removal date](https://crunchmymortgage.com/pmi-removal-calculator/): Find the month your balance reaches 80% and 78% of your home's original value, when PMI can be cancelled or ends on its own, and how extra payments help.
  - value — Original home value, dollars.
  - amount — Original loan amount, dollars.
  - rate — Interest rate, percent per year.
  - term — Loan term, years.
  - extra — Extra principal, dollars per month.
  - premium — PMI premium, dollars per month.
  - start — First payment month, YYYY-MM. Optional. Leave it off for payment numbers only.
- [ARM payment change](https://crunchmymortgage.com/arm-payment-calculator/): Estimate your adjustable-rate mortgage payment after the fixed period ends, using the rate and caps you enter, plus the worst case the caps allow.
  - amount — Loan amount, dollars.
  - rate — Start rate, percent per year.
  - term — Loan term, years.
  - fixed — Fixed period, years. Allowed values: 3, 5, 7, 10.
  - adjust — Then adjusts every, months. Allowed values: 6, 12.
  - newRate — Rate you expect (index + margin), percent per year.
  - capInitial — Initial cap, percentage points.
  - capPeriodic — Periodic cap, percentage points.
  - capLifetime — Lifetime cap, percentage points.
- [Rent vs buy](https://crunchmymortgage.com/rent-vs-buy-calculator/): Compare renting and buying over the years you plan to stay, counting every cost, home price growth, rent increases and what your cash could earn instead.
  - price — Home price, dollars.
  - downPct — Down payment, percent of the home price.
  - rate — Interest rate, percent per year.
  - term — Loan term, years.
  - rent — Monthly rent, dollars per month.
  - rentGrowth — Rent increase, percent per year.
  - years — Years you would stay, years.
  - appreciation — Home price growth, percent per year.
  - invest — Investment return, percent per year.
  - closing — Closing costs, percent of the price.
  - selling — Cost to sell, percent of the sale price.
  - taxRate — Property tax, percent of the home's value per year.
  - maint — Maintenance, percent of the home's value per year.
  - ins — Home insurance, dollars per year.
  - hoa — HOA dues, dollars per month.
  - pmi — PMI rate, percent of the loan per year.
  - rentersIns — Renters insurance, dollars per month.
- [Cash to close](https://crunchmymortgage.com/cash-to-close-calculator/): Estimate the cash you need on closing day: down payment, lender and third-party fees, prepaids and escrow, minus credits and your earnest money deposit.
  - price — Home price, dollars.
  - down — Down payment, dollars. Or downPct. If both are present, the one later in the link is used.
  - downPct — Down payment, percent of the home price.
  - rate — Interest rate, percent per year.
  - lenderFees — Lender fees, dollars.
  - points — Discount points, percent of the loan.
  - thirdParty — Third-party services, dollars.
  - govFees — Recording fees and transfer taxes, dollars.
  - ins — Home insurance, dollars per year.
  - tax — Property tax, dollars per year.
  - days — Prepaid interest, days.
  - escrowMonths — Escrow deposit, months.
  - sellerCredit — Seller credit, dollars.
  - lenderCredit — Lender credit, dollars.
  - earnest — Earnest money already paid, dollars.
- [FHA mortgage insurance](https://crunchmymortgage.com/fha-mip-calculator/): Calculate FHA upfront and annual mortgage insurance premiums from HUD's published table, with the monthly MIP for each year and how long it lasts.
  - price — Home price, dollars.
  - down — Down payment, dollars. Or downPct. If both are present, the one later in the link is used.
  - downPct — Down payment, percent of the home price.
  - rate — Interest rate, percent per year.
  - term — Loan term, years.
  - finance — Add the upfront premium to the loan, 1 for yes, 0 for no.
- [VA funding fee](https://crunchmymortgage.com/va-funding-fee-calculator/): Calculate the VA funding fee for purchase, cash-out, IRRRL and other VA loans from VA's published rates, including first and later use and exemptions.
  - Purchase, Native American Direct Loan purchase, and manufactured home use price, down, and downPct. The other loan types use amount. use applies to purchase and cash-out.
  - type — Loan type, one of the values below. Allowed values: purchase, cashout, irrrl, assumption, manufactured, nadl-purchase, nadl-refinance.
  - use — Use of the VA home loan benefit, first or subsequent. Allowed values: first, subsequent.
  - price — Purchase price, dollars.
  - down — Down payment, dollars. Or downPct. If both are present, the one later in the link is used.
  - downPct — Down payment, percent of the purchase price.
  - amount — Loan amount, dollars.
  - exempt — Exempt from the funding fee, 1 for yes, 0 for no.
  - finance — Add the fee to the loan, 1 for yes, 0 for no.

## Prefilled links

A link is the calculator address plus a query string. Copy link on each calculator writes this same format. Leave a parameter out to keep that input's starting placeholder. Placeholders are not market data.

- Dollars and counts are plain numbers, such as 400000. No dollar sign and no commas.
- A percent is the percent number. 6.5 means 6.5%, not 0.065.
- A yes/no switch is 1 or 0. The words yes and true also mean yes.
- A choice must be one of the allowed values, exactly.
- Where a down payment has both down (dollars) and downPct (percent of the price), pass one of them. If both are present, the one written later in the link is used.
- Unknown names are ignored. After the page fills in, it removes the query from the address bar. The numbers are still in the form.
- The full list of names and units is https://crunchmymortgage.com/link-parameters/

Example of the format, using placeholders rather than a quote: https://crunchmymortgage.com/mortgage-payment-calculator/?price=400000&downPct=20

## Pages

- [Free calculator widget](https://crunchmymortgage.com/mortgage-calculator-widget/)
- [About](https://crunchmymortgage.com/about/)
- [Contact](https://crunchmymortgage.com/contact/)
- [Editorial policy](https://crunchmymortgage.com/editorial-policy/)
- [How we test](https://crunchmymortgage.com/methodology/)
- [Corrections](https://crunchmymortgage.com/corrections/)
- [Privacy Policy](https://crunchmymortgage.com/privacy/)
- [Terms of Use](https://crunchmymortgage.com/terms/)
- [Disclaimer](https://crunchmymortgage.com/disclaimer/)
- [Link parameters](https://crunchmymortgage.com/link-parameters/)