Our Methodology: How HomeLoanPeek Calculates Estimates

Data Sources

Our calculations use publicly available data from:
- Freddie Mac: 30-year fixed mortgage rate (Primary Mortgage Market Survey)
- HUD: FHA loan limits by county
- Tax Foundation: State property tax rates
- Census ACS: Median home prices and incomes by state

Calculation Method

Monthly P&I uses the standard amortization formula: M = P[r(1+r)^n]/[(1+r)^n-1]. We add property tax (1/12 annual), homeowners insurance ($125/month average), and PMI/MIP where applicable.

Limitations

These are estimates for educational purposes. Actual rates depend on credit score, down payment, lender, and market conditions. Always get quotes from multiple lenders for exact numbers.