Mortgage Calculator
Calculate your monthly mortgage payments, determine home affordability, analyze refinance options, and understand PMI costs. Get detailed amortization schedules and break-even analysis for informed home buying decisions.
Complete Payment Breakdown
See principal, interest, taxes, insurance, PMI, and HOA fees in one view
Affordability Calculator
Determine how much house you can afford based on your income and debts
Refinance Analysis
Calculate potential savings and break-even point for refinancing
Extra Payment Planner
See how extra payments can save you thousands and shorten your loan term
Essential Formulas
Monthly Payment (P&I):
M = P [r(1+r)^n] / [(1+r)^n - 1]
Where:
M = Monthly Payment
P = Principal Loan Amount
r = Monthly Interest Rate
n = Total Number of Payments
Loan-to-Value (LTV):
LTV = (Loan Amount / Home Price) × 100
Common Examples
$400,000 Home:
20% down @ 6.5% = $2,023/month (P&I)
$300,000 Home (First-time):
5% down @ 6.5% = $1,896/month + $125 PMI
Refinance:
7.5% to 6.5% on $300k = $200/month savings
Extra Payments:
$200/month extra saves $64,000 in interest
Mortgage Tips:
20% Down Avoids PMI: Save hundreds monthly by putting down 20% or more. Shorter Terms Save Thousands: 15-year mortgage saves ~50% in interest vs 30-year. Refinance When Rates Drop 1%: Typically makes financial sense when rates drop 1% or more. Extra Payments Early: The most impactful time for extra payments is early in the loan term.
'This mortgage calculator helped me understand all the hidden costs of homeownership. The breakdown of taxes, insurance, and PMI was eye-opening!'
- Sarah M., First-time Homebuyer
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