How to use it
- Enter the loan amount in dollars.
- Enter the loan‑to‑value ratio as a decimal (e.g., 0.80).
- Enter the monthly PMI rate (e.g., 0.001).
- Enter the loan term in years and click Calculate.
What it does – The PMI Insurance Calculator takes your loan amount, LTV, monthly PMI rate and term to show three numbers: the monthly PMI payment, the annual total and the cumulative PMI over the life of the loan. Why it matters – PMI can add hundreds to each payment and thousands over decades; knowing the exact figures helps you compare loan offers, decide on a larger down payment, or schedule early cancellation. How to read it – The Monthly PMI is the amount added to each payment. Multiply by 12 for the Annual PMI. Multiply the annual figure by the number of years in your term for the Total PMI you’ll pay if the rate never changes. Use these numbers to budget or negotiate better terms.
Pro tips
- Round the loan amount to the nearest hundred for quicker mental checks.
- Enter LTV as a decimal, not a percentage, to avoid a 10‑fold error.
- If you have a fractional term (e.g., 30.5 years), use the exact number for total PMI.
- Double‑check that the monthly rate is expressed per month, not annually.
Real-life examples
- First‑time homebuyer comparing a 5% down payment versus 20% to see PMI impact.
- Refinance candidate evaluating whether a lower rate offsets ongoing PMI costs.
- Real‑estate investor estimating cash‑flow after adding PMI to a rental property loan.
Case study
Sarah wanted to buy a $250,000 home with 10% down. Using the calculator, she saw a $250 monthly PMI, $3,000 annual, and $90,000 total over 30 years, prompting her to increase her down payment and save $30,000 in PMI alone.