House affordability calculator

Translate your monthly housing budget into a property price using your loan, down-payment and other-cost assumptions.

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House affordability calculator processes your input in this browser. Inputs and results are excluded from analytics. Recent tools save tool names, visit counts and last-visit times. Saved tools store only their names. Draft saving is optional and stays on this device; delete saved text with the draft controls. Loading text from a URL is optional and contacts that server; its URL and your IP address are visible to the server. An optional “Use in” action keeps a handoff in this tab. The next tool removes it on arrival and ignores it if more than a minute has passed.

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Monthly housing budget

Monthly taxes, insurance and other housing costs

More inputs and assumptions

Annual nominal loan interest (%)

Loan term (months)

Down payment (%)

Answer

…

Translate your monthly housing budget into a property price using your loan, down-payment and other-cost assumptions.

More results

Precision and calculation record

Decimal places in numeric results and text downloads

Rounding changes displayed numbers, not the calculation. Text, fractions, matrices and CSV schedules keep their own formatting. Automatic keeps up to 12 significant digits, with money shown to cents where applicable.

Saved scenario

Save the current answer, then change an input to compare. This clears when you leave.

Formula and assumptions

This reverses a fixed-payment loan formula. It does not determine qualification, recommend a spending limit or calculate taxes from location. Closing costs, reserves and changes in expenses remain separate. Fixed assumptions only: no taxes, fees, changing returns, guarantees or product eligibility. Amounts share one currency.

Automatic precision shows numbers to 12 significant digits. Thousands separators such as 1,000 are accepted; use a dot for decimals.

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Updated 2026-09-26

Using House affordability calculator

Translate your monthly housing budget into a property price using your loan, down-payment and other-cost assumptions.

Next: Mortgage calculator

Next: Rental property roi calculator

A worked example

Example inputs: monthly housing budget = 1000, monthly taxes, insurance and other housing costs = 200, annual nominal loan interest (%) = 0, loan term (months) = 120, down payment (%) = 20. Price within supplied payment budget = 120000.

Before you use the result

Example results for monthly housing budget

These examples use Monthly taxes, insurance and other housing costs: 200; Annual nominal loan interest (%): 0; Loan term (months): 120; Down payment (%): 20. They are reference calculations, not recommended settings.

Monthly housing budget	Price within supplied payment budget
500	45000
1000	120000
2000	270000

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ToolOctopus. “House affordability calculator.” Updated 2026-09-26. https://tooloctopus.com/house-affordability-calculator.

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