# FinanceFlow > Educational purchase, refinance, affordability, HELOC, rent vs buy, and price-to-rent mortgage calculators; average home cost and rent by state maps; and a plain-language mortgage glossary at financeflow.studio. Calculator outputs and housing figures are estimates only-not loan offers, quotes, or professional advice. FinanceFlow is not a lender or mortgage broker. ## Documentation Sets - [FinanceFlow - full site summary for AI systems](https://financeflow.studio/llms-full.txt): FinanceFlow (financeflow.studio) provides free educational mortgage tools: a mortgage payment calculator (taxes, insurance, PMI, extra payments), a refinance break-even and cash-out calculator, a how-much-house-can-I-afford / home affordability calculator (income and DTI), a HELOC calculator (how much can I borrow, CLTV, draw vs repayment), a rent vs buy calculator (net worth, opportunity cost, break-even), a price to rent ratio calculator (ratio + 5% rule screen), average home cost by state and average rent by state maps (Zillow ZHVI/ZORI, monthly refresh), and a plain-language mortgage glossary. Outputs are estimates only-not loan offers, quotes, or professional advice. ## Product Interactive tools and educational content for understanding purchase, refinance, home affordability, HELOCs, rent vs buy, price-to-rent ratio, and state-level home values and rents. - [Mortgage payment calculator](https://financeflow.studio/): Mortgage payment calculator with taxes and insurance, PMI, HOA, extra payments, and amortization. State averages can prefill monthly costs. - [Refinance break-even calculator](https://financeflow.studio/refinance): Refinance break-even and cash-out refinance calculator: compare payments, estimate break-even months, model cash-out equity and LTV, closing costs, PMI, taxes, insurance, and amortization. - [How much house can I afford](https://financeflow.studio/affordability): Home affordability calculator: estimate how much house you can afford from gross income, monthly debts, and 28/36 DTI guidelines, with state tax/insurance estimates. - [HELOC calculator - how much can I borrow](https://financeflow.studio/heloc): Estimate how much you can borrow with a HELOC under a CLTV guideline, model interest-only draw and amortizing repayment payments, available credit, HCLTV, and amortization. - [Rent vs buy calculator - break-even](https://financeflow.studio/rent-vs-buy): Rent vs buy break-even calculator: compare net worth over 3–10+ years with taxes, insurance, maintenance, closing costs, PMI, opportunity cost, home appreciation, and break-even year. Scenario presets for horizon and down payment. - [Price to rent ratio calculator](https://financeflow.studio/price-to-rent): Price to rent ratio calculator: home price ÷ annual rent, educational interpretation bands, 5% rule ownership-cost proxy, and deep link to the full rent vs buy model with price and rent prefilled. - [Car loan payment calculator](https://financeflow.studio/car-loan): Car loan payment calculator with sales tax, trade-in, negative equity, dealer fees, 36–84 month terms, extra payments, early payoff, and amortization. Educational estimates only. - [How much car can I afford calculator](https://financeflow.studio/car-affordability): Reverse car affordability: maximum vehicle price from monthly payment or income guideline, with trade-in, sales tax, fees, and 36–84 month terms. Educational only. - [Average home cost by state](https://financeflow.studio/average-home-cost-by-state): Interactive US map of typical home values by state from Zillow ZHVI (mid-tier), with search, ranks, and monthly refresh. Educational estimates-not an appraisal. - [Average rent by state](https://financeflow.studio/average-rent-by-state): Interactive US map of typical monthly rent by state from Zillow ZORI county data summarized to state medians, with search, ranks, and monthly refresh. Educational estimates-not a lease quote. - [Home](https://financeflow.studio/): Landing page and entry to the purchase calculator; links to refinance, affordability, HELOC, rent vs buy, price to rent, housing data, and glossary. ## AI markdown pages Compact Markdown mirrors of major pages (via Nuxt Content) for faster LLM parsing. Prefer these for product context; HTML URLs for interactive calculators and maps. - [Home affordability calculator](https://financeflow.studio/raw/ai/affordability.md): How much house can I afford from income, debts, and 28/36 DTI guidelines. - [Average home cost by state](https://financeflow.studio/raw/ai/average-home-cost-by-state.md): Interactive US map of typical home values by state from Zillow ZHVI, updated monthly. - [Average rent by state](https://financeflow.studio/raw/ai/average-rent-by-state.md): Interactive US map of typical monthly rent by state from Zillow ZORI, updated monthly. - [How much car can I afford calculator](https://financeflow.studio/raw/ai/car-affordability.md): Reverse car affordability: max vehicle price from monthly payment or income, with trade-in, sales tax, fees, and illustrative credit score rate ranges. - [Car loan payment calculator](https://financeflow.studio/raw/ai/car-loan.md): Car loan calculator with sales tax, trade-in, negative equity, dealer fees, amortization, extra payments, early payoff, and illustrative credit score rate ranges. Editable rate—no credit pull. - [Mortgage glossary (AI summary)](https://financeflow.studio/raw/ai/glossary.md): Plain-language mortgage glossary overview for FinanceFlow calculators. - [HELOC calculator](https://financeflow.studio/raw/ai/heloc.md): How much can I borrow with a HELOC: credit limit, CLTV, draw and repayment payments. - [FinanceFlow AI documentation index](https://financeflow.studio/raw/ai.md): Index of Markdown mirrors for FinanceFlow calculators, housing data pages, and glossary, optimized for LLMs. - [FinanceFlow overview](https://financeflow.studio/raw/ai/overview.md): Short overview of FinanceFlow educational mortgage calculators, housing data, and principles. - [Price to rent ratio calculator](https://financeflow.studio/raw/ai/price-to-rent.md): Price-to-rent ratio (price divided by annual rent) and 5% rule educational screen. - [Mortgage payment calculator (purchase)](https://financeflow.studio/raw/ai/purchase.md): Purchase mortgage payment calculator with taxes, insurance, PMI, extra payments, amortization, and illustrative credit score rate ranges. - [Refinance break-even and cash-out calculator](https://financeflow.studio/raw/ai/refinance.md): Refinance break-even months and cash-out refinance equity estimates. - [Rent vs buy calculator](https://financeflow.studio/raw/ai/rent-vs-buy.md): Rent vs buy with break-even year, opportunity cost, and net worth over a planning horizon. ## Glossary Plain-language definitions of mortgage terms used in the purchase, refinance, affordability, HELOC, and rent vs buy calculators (PMI, LTV, CLTV, DTI, opportunity cost, amortization, cash-out, draw period, loan types, and more). - [Mortgage glossary](https://financeflow.studio/glossary): Searchable, categorized glossary of purchase, refinance, affordability, HELOC, and rent vs buy mortgage terminology. ## Legal Privacy and terms for financeflow.studio. - [Privacy Policy](https://financeflow.studio/privacy-policy): How FinanceFlow handles information for the calculators, glossary, housing data, and site analytics (including Google Analytics and Microsoft Clarity). - [Terms of Service](https://financeflow.studio/terms-of-service): Educational-use terms, disclaimers, and acceptable use for calculators and site content. ## Glossary terms Key mortgage terms defined on the FinanceFlow glossary (plain language, educational). - [Home price](https://financeflow.studio/glossary/home-price): The agreed purchase price of the home before loan fees and closing costs. - [Down payment](https://financeflow.studio/glossary/down-payment): The cash you pay upfront at purchase; the rest of the home price is typically financed. - [Loan amount](https://financeflow.studio/glossary/loan-amount): How much you borrow: typically home price minus down payment. - [Debt-to-income (DTI)](https://financeflow.studio/glossary/debt-to-income): How much of your gross monthly income goes to debt payments, expressed as a percent. - [Front-end DTI](https://financeflow.studio/glossary/front-end-dti): Total housing payment divided by gross monthly income. - [Back-end DTI](https://financeflow.studio/glossary/back-end-dti): Housing plus other monthly debts, divided by gross monthly income. - [Affordability](https://financeflow.studio/glossary/affordability): An estimate of how much home you may be able to buy based on income, debts, and loan terms. - [Loan term](https://financeflow.studio/glossary/loan-term): How long you have to repay the loan, commonly 15 or 30 years. - [Interest rate](https://financeflow.studio/glossary/interest-rate): The annual cost of borrowing expressed as a percentage of the loan balance. - [Principal](https://financeflow.studio/glossary/principal): The amount of loan balance you still owe, not including interest. - [Principal & interest (P&I)](https://financeflow.studio/glossary/principal-and-interest): The core mortgage payment that goes toward interest and reducing the loan balance. - [Amortization](https://financeflow.studio/glossary/amortization): The process of paying off a loan over time with scheduled payments of principal and interest. - [Loan-to-value (LTV)](https://financeflow.studio/glossary/loan-to-value): Your loan amount as a percentage of the home’s value or purchase price. - [State estimates](https://financeflow.studio/glossary/state-estimates): State-level averages used to prefill property tax, insurance, and related monthly costs. - [Property tax](https://financeflow.studio/glossary/property-tax): Local taxes based on your property’s assessed value, often paid monthly into escrow. - [Homeowners insurance](https://financeflow.studio/glossary/home-insurance): Insurance that helps cover damage to your home and related liability; often required by lenders. - [PMI (private mortgage insurance)](https://financeflow.studio/glossary/pmi): Insurance on many conventional loans when you put less than 20% down; protects the lender, not you. - [HOA fees](https://financeflow.studio/glossary/hoa): Recurring dues paid to a homeowners association for shared amenities and maintenance. - [Escrow (taxes & insurance)](https://financeflow.studio/glossary/escrow): A lender-managed account that collects property tax and insurance with your payment. - [Monthly payment](https://financeflow.studio/glossary/monthly-payment): What you pay each month for the loan and related housing costs in the calculator. - [Loan type](https://financeflow.studio/glossary/loan-type): The mortgage program you model-Conventional, FHA, VA, or USDA-which changes rules like PMI. - [Conventional loan](https://financeflow.studio/glossary/conventional-loan): A mortgage not insured by FHA, VA, or USDA; may require PMI with a small down payment. - [FHA loan](https://financeflow.studio/glossary/fha-loan): A government-backed loan with its own mortgage insurance rules (not conventional PMI). - [VA loan](https://financeflow.studio/glossary/va-loan): A loan program for eligible veterans and service members; typically no conventional PMI. - [USDA loan](https://financeflow.studio/glossary/usda-loan): A rural-development loan program with location and income requirements; not conventional PMI. - [Extra payment](https://financeflow.studio/glossary/extra-payment): Money paid beyond the scheduled payment, usually applied to principal. - [Payoff date](https://financeflow.studio/glossary/payoff-date): When the loan balance reaches zero under your payment assumptions. - [Interest saved](https://financeflow.studio/glossary/interest-saved): How much less interest you may pay by reducing principal faster than the original schedule. - [Loan balance](https://financeflow.studio/glossary/balance): How much principal you still owe at a point in time. - [Closing costs](https://financeflow.studio/glossary/closing-costs): Fees paid to complete a loan or refinance (title, appraisal, origination, and similar). - [Cash-out refinance](https://financeflow.studio/glossary/cash-out): A refinance that replaces your loan with a larger balance so you receive cash at closing. - [Break-even](https://financeflow.studio/glossary/break-even): How long it takes for monthly savings to recover cash closing costs. - [HELOC](https://financeflow.studio/glossary/heloc): A revolving credit line secured by your home, usually behind a first mortgage. - [Home equity](https://financeflow.studio/glossary/home-equity): The portion of the home’s value you own after subtracting what you owe. - [Credit limit](https://financeflow.studio/glossary/credit-limit): The maximum amount you can borrow on a HELOC, set by the lender. - [Draw period](https://financeflow.studio/glossary/draw-period): The phase of a HELOC when you can borrow against the line. - [Repayment period](https://financeflow.studio/glossary/repayment-period): The phase after the draw period when the remaining balance is paid down. - [Interest-only payment](https://financeflow.studio/glossary/interest-only-payment): A payment that covers interest for the period but does not reduce principal. - [Combined loan-to-value (CLTV)](https://financeflow.studio/glossary/cltv): All secured loan balances on a property divided by home value. - [HCLTV](https://financeflow.studio/glossary/hcltv): Combined LTV using the full HELOC credit limit, not just the amount drawn. ## Notes - Purchase, refinance, affordability, HELOC, rent vs buy, and price-to-rent calculator results and state housing figures (ZHVI/ZORI-based maps and tax/insurance factors) are educational estimates only-not offers, pre-approvals, tax bills, insurance quotes, appraisals, or investment advice. - FinanceFlow is not a lender or mortgage broker. - Site analytics: Google Analytics (GA4, first-party Nuxt Scripts mode) and Microsoft Clarity (direct third-party). Details: https://financeflow.studio/privacy-policy - Contact: privacy@financeflow.studio · legal@financeflow.studio · Fort Wayne, Indiana, USA.