How to use it
- Enter the loan amount in USD.
- Enter the annual PMI rate as a decimal (e.g., 0.008).
- Click Calculate to see your monthly PMI payment.
What the calculator does It takes the loan amount you plan to finance and the annual PMI rate expressed as a decimal, then applies the standard formula (loan × annual rate ÷ 12) to give you a single monthly PMI figure. The result appears instantly, so you can adjust inputs and see the impact right away.
Why it matters PMI adds to your housing cost until you reach the required equity. Knowing the exact monthly amount helps you budget, compare loan offers, and decide whether to accelerate payments to drop PMI sooner.
How to read the result The number shown is the amount you’ll pay each month for private mortgage insurance. It’s already divided by 12, so no further conversion is needed. Add this figure to your mortgage payment sheet to keep your cash flow transparent. Use it alongside principal, interest, taxes, and insurance to see your total housing expense.
Pro tips
- Round the loan amount to the nearest thousand for a quick sanity check.
- If the rate is given as a percent, divide by 100 before entering.
- Enter the exact annual PMI rate from your loan estimate to avoid errors.
- Remember PMI stops once you reach 20% equity, so use the monthly figure to plan payoff.
Real-life examples
- First‑time buyer wants to know how much extra they’ll pay each month before reaching 20% equity.
- Refinancing homeowner compares PMI costs between two loan options.
- Real‑estate investor budgets cash flow for a rental property with a low‑down‑payment loan.
Case study
Sarah entered her $180,000 loan and a 0.009 annual PMI rate. The calculator showed a $135.00 monthly PMI cost, letting her see the true monthly expense and decide to make a larger down payment to eliminate PMI faster.