Finance & Investment
Home Affordability Calculator
Home Affordability: it works backwards from the share of income you can spend on housing, through the EMI formula, to a supportable loan and price. Worked through below with real figures, and the calculator repeats the working on your own inputs — free, on-device, instant.
Use Home Affordability Calculator to run the numbers on a money decision: give it your gross monthly income, down payment saved, existing monthly debts and annual interest rate, press Calculate, and read off a clear figure with the supporting breakdown — all worked out on your device.
About this calculator
It works backwards from the share of income you can spend on housing, through the EMI formula, to a supportable loan and price. It matters any time money changes value over time — savings, loans, investments, prices and pay all reduce to these relationships. Worked below as If lenders allow EMI up to 40% of an 100,000 income, a 40,000 EMI at 8.5% over 20 years supports a loan of roughly 4,609,233.59. — and the calculator on this page repeats exactly that working for your inputs, instantly, and offline after load.
How to use
- Enter your gross monthly income.
- Enter your down payment and existing monthly debts.
- Enter the interest rate and loan term.
- Press Calculate to see an affordable home price.
Why use Home Affordability Calculator
Fast
Calculations run in your browser. No round trip to a server.
Private
Your inputs never leave your device. Nothing is uploaded.
Free
No signup, no paywall, no ads-in-results, no watermarks.
Educational
Uses simplified financial formulas for educational estimates. Results may not include fees, taxes, insurance, lender rules, penalties, or credit decisions.
Mobile-ready
Optimised for phones, tablets, and desktops alike.
Transparent
Clear about the method used and its limits, with disclaimers where they matter.
Common uses
Use it when comparing what lenders may offer
Use it for purchase-budget planning
Use it when checking how much you can borrow
Use it when comparing tenures' affordability
Use it when planning before applying
Use it when factoring in existing debts
Technical notes
Home Affordability Calculator works backwards from the share of income you can spend on housing, through the EMI formula, to a supportable loan and price.
Lenders weigh your credit score, existing debts and policy, so the amount you can actually borrow may differ.
All arithmetic runs in your browser using double-precision floating point, so extreme inputs may show tiny rounding differences.
FAQ
How is affordability estimated?
It caps your mortgage payment at 40% of income minus existing debts, works out the loan that payment supports, then adds your down payment to get a home price.
Does it include taxes and insurance?
No. The estimate covers the loan payment only. Property tax, insurance, HOA, and maintenance reduce what you can comfortably afford.
How does my down payment change the result?
A larger down payment adds directly to the affordable price and lowers the loan needed, which can also improve your rate and remove mortgage insurance.
Does the Home Affordability Calculator send my data to a server?
No. The Home Affordability Calculator runs entirely in your browser — your inputs never leave your device, and nothing is uploaded or stored.
Worked example
If lenders allow EMI up to 40% of an 100,000 income, a 40,000 EMI at 8.5% over 20 years supports a loan of roughly 4,609,233.59.