John Bramley Calculators

Run the mortgage numbers in one place.

Use one calculator suite for monthly payment, affordability, refinance break-even, and extra-payment scenarios. These are planning estimates, not an approval, quote, or locked loan terms.

Home Affordability

Estimate a purchase price from income, monthly debts, cash available, and carrying-cost assumptions.

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$
$
%
%
%
$
$
Estimated purchase price
$0
Estimated loan amount$0
Target monthly housing budget$0
Estimated principal and interest$0

This is a simplified estimate. Actual qualifying ratios and allowable income or debts vary by loan program, borrower, property, credit profile, and underwriting.

Refinance Break-Even

Compare your current principal and interest payment with a possible new loan and estimate how long monthly savings could take to offset closing costs.

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%
%
$
Estimated break-even
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Current P&I$0
New P&I$0
Monthly difference$0
Interest difference over selected terms$0

Taxes, insurance, escrow changes, financed costs, points, mortgage insurance, and changes in loan balance can materially change the comparison.

Extra Principal Payment

See how a consistent extra principal payment could change payoff time and total interest.

$
%
$
Estimated time saved
—
Scheduled P&I payment$0
Estimated interest saved$0
Estimated payoff time—

Extra payments should be applied to principal as intended. Check your loan documents and servicer procedures before relying on an accelerated payoff strategy.

Monthly Mortgage Payment

Estimate principal, interest, taxes, insurance, HOA dues, and mortgage insurance in one place.

$
$
%
$
$
$
$
Estimated monthly housing payment
$0
Loan amount$0
Principal and interest$0
Property taxes$0
Homeowners insurance$0
HOA dues$0
Mortgage insurance$0

For planning purposes only. Actual payments vary by loan program, property, borrower profile, taxes, insurance, mortgage insurance, HOA dues, and other costs.