Two ratios cap the payment
The front-end ratio limits housing cost as a share of gross monthly income. The back-end ratio limits housing plus other monthly debts. This calculator uses the tighter of the two.
Free tool
How much house can I afford?
Estimate a home price from income, debts, down payment, and a typical payment ratio. No account.
Starting numbers are an example: $120,000 household income, $500 in other monthly debts, 20% down, 6.5% for 30 years. Front-end 28% and back-end 36% are common planning ratios — lenders set their own.
Estimated home price $446,936
- Monthly housing budget $2,800.00
- Estimated monthly payment $2,800.00
- Loan amount $357,549
That is a budget. Now put it on a home.
Add the address you walked through last night. Save the budget next to the homes you are actually touring.
We’ll save the address, then you create your household.
Start free — no card. Household compares homes — and payments — with your people.
Save this budget on the homes you are actually touring.
How the budget is calculated
Housing cost is more than the loan
The budget has to cover principal, interest, taxes, insurance, HOA, and PMI when it applies. A price that only fits the loan payment will not fit the real monthly number.
Down payment changes the price and PMI
A larger down payment lowers the loan and can drop PMI under 20% down. Change the percent or a dollar amount and the estimated price updates immediately.
Your lender may allow a different ratio
Conventional, FHA, and VA loans use different guidelines. Edit the front-end and back-end percents to match what you were quoted. This is planning math, not an approval.
Calculator questions
How is “how much house can I afford” calculated?
Gross monthly income times the front-end ratio is one housing cap. Income times the back-end ratio, minus other monthly debts, is the other. The calculator uses the lower cap, then solves for a home price whose principal, interest, taxes, insurance, HOA, and PMI fit that payment.
What is a debt-to-income ratio?
Debt-to-income, or DTI, is monthly debt payments divided by gross monthly income. Housing DTI is the front-end ratio. Housing plus other debts is the back-end ratio. Lenders use both.
Is this a pre-approval or loan offer?
No. The numbers are an estimate for planning. Kinwyn is not a lender, mortgage broker, or insurance agent. Confirm figures with a licensed professional before you act.
Can I compare this budget on more than one home?
Yes. Start free and add the homes you are touring. Household unlocks invites so the family sees the same shortlist, must-haves, and costs — not five group texts.
Free tools
Estimate the payment. Then pick the house.
No account. Then save the numbers on the homes your household is touring.
Mortgage calculator
Monthly principal, interest, taxes, insurance, HOA, and PMI.
House hunting checklist
Tour, rate, and decide as a household — then keep the shortlist in one place.
This calculator is an estimate for planning only. It is not a loan offer, pre-approval, or advice. Kinwyn is not a lender, mortgage broker, or insurance agent. Debt-to-income limits, tax, insurance, HOA, and PMI vary by loan and location. Confirm numbers with a licensed professional before you act.