Finance Calculators

Mortgage Affordability Calculator

Use this calculator to work backwards from a monthly repayment target and estimate the loan amount and home price it may support.

Monthly amount you could spend on the estimated mortgage payment, before comparing it with rate, term, and down payment assumptions.

Enter the annual percentage rate, not a decimal. For example, enter 6.5 for 6.5%.

Enter the length of the period using the unit shown in the label.

Enter the amount in the currency you are using. Keep the same currency across money fields.

Controls rounding in the displayed result only; it does not change the underlying calculation.

Result
Enter values to begin

Formula

maximum loan = payment × ((1 + monthly rate)^months − 1) ÷ (monthly rate × (1 + monthly rate)^months)

Worked example

A $2,800 monthly budget at 6.5% over 30 years supports an estimated loan of about $442,600 before adding any down payment.

How to use this calculator

Start with realistic inputs, run more than one scenario, and compare the result with nearby calculators in the same topic cluster. This makes the page useful for both a quick answer and a deeper planning workflow.

For important financial, health, construction or employment decisions, treat the output as a planning estimate rather than a final professional assessment.

Accuracy note

CalculatorWorks explains formulas and assumptions so results are easier to review. Inputs, rounding, local rules, fees and personal circumstances can change real outcomes.