Mortgage Calculator

Home Price ($)

Down Payment

Currently using a dollar amount.

APR (%)

Term (years)

Property Tax Rate (% / year)

Annual rate applied to home price; divided by 12 for monthly estimate.

Homeowners Insurance ($ / year)

HOA ($ / month)

PMI (% / year on loan)

Applied only if LTV > 80% (simplified).

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Mortgage Calculator – Quick Cheat Sheet

P&I formula (fixed-rate): M = P·r·(1+r)^n / ((1+r)^n − 1), where P is loan amount, r = APR/12 (decimal), n = years×12.
Property tax (monthly) ≈ price × (tax%/100) / 12.
Insurance (monthly) = (annual insurance $) / 12.
HOA is added directly to the monthly total.
PMI (monthly) ≈ loan × (PMI%/100) / 12, shown here only if LTV > 80%.
LTV = loan / price. Many lenders drop PMI around ~78–80% LTV; rules vary.
Tip: Use % down for quick LTV exploration; switch to $ for exact cash planning.

Notes & assumptions

Tax/insurance/PMI/HOA are estimates for planning—your lender/escrow will determine actual amounts and timing.
PMI here is simplified and continuous while LTV > 80% (no automatic drop-off schedule simulated).
Inputs must be non-negative; term must be ≥ 1 year.