Rex says
Money math without the spreadsheet headache. Plug in your numbers and I'll show you exactly where the dollars land.
Try a scenario
Click to load — tweak from there.Inputs
Result
Monthly PMI
$185.00
Years until PMI can be removed
3.5
Total PMI you will pay
$7,770
Starting loan-to-value
92.5%
Payment including PMI
$2,548.04
Months of PMI
42
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How to use this
- 1Enter home price ($).
- 2Enter down payment ($).
- 3Enter mortgage rate (%).
- 4Enter term (years).
- 5Enter annual pmi rate (%).
- 6Enter annual home appreciation (%).
- 7Read your monthly pmi on the right — it updates as you type.
- 8Hit Share to keep the scenario or send it to someone.
About this calculator
PMI automatically terminates at 78% loan-to-value on the original schedule, but you can request removal at 80% — often years earlier if your home has appreciated.
Worked example
Using the values the calculator loads with:
Inputs
- Home price: 400000 $
- Down payment: 30000 $
- Mortgage rate: 6.6 %
- Term (years): 30
- Annual PMI rate: 0.6 %
- Annual home appreciation: 3 %
Results
- Monthly PMI: $185.00
- Years until PMI can be removed: 3.5
- Total PMI you will pay: $7,770.00
- Starting loan-to-value: 92.5%
- Payment including PMI: $2,548.04
- Months of PMI: 42
What each field means
Inputs
- Home price ($)
- The home price used in the calculation, measured in $. Starts at 400000 $ so you have a working example on load.
- Down payment ($)
- The down payment used in the calculation, measured in $. Starts at 30000 $ so you have a working example on load.
- Mortgage rate (%)
- The mortgage rate used in the calculation, measured in %. Starts at 6.6 % so you have a working example on load.
- Term (years)
- The term (years) used in the calculation. Starts at 30 so you have a working example on load. Accepted range: 5–40.
- Annual PMI rate (%)
- The annual pmi rate used in the calculation, measured in %. Starts at 0.6 % so you have a working example on load. Accepted range: 0–2 %.
- Annual home appreciation (%)
- The annual home appreciation used in the calculation, measured in %. Starts at 3 % so you have a working example on load. Accepted range: -5–15 %.
Results
- Monthly PMI
- Returned as a money amount in US dollars and shown as the headline result. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Years until PMI can be removed
- Returned as a decimal number. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Total PMI you will pay
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Starting loan-to-value
- Returned as a percentage. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Payment including PMI
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Months of PMI
- Returned as a whole number. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
FAQ
How does the pmi (mortgage insurance) calculator work?
PMI automatically terminates at 78% loan-to-value on the original schedule, but you can request removal at 80% — often years earlier if your home has appreciated. The underlying maths is: PMI = Loan × annual PMI rate ÷ 12; drops when LTV reaches 80%.
What do I need to enter?
6 values: home price, down payment, mortgage rate, term (years), annual pmi rate, and annual home appreciation. Each field starts with a sensible default, so you can change one number at a time and watch the result move.
What does the monthly pmi result mean?
It is returned as a money amount in US dollars and updates live as you edit the inputs, so you can compare two or three versions of a scenario in a few seconds.
Is this calculator free, and do I need an account?
Yes, it's free, and no account is required. Nothing you type is stored on our servers — the maths runs entirely in your browser.
How accurate is the result?
It applies the standard formula exactly, so the arithmetic is precise. Results are estimates before tax, fees, and inflation unless an input explicitly covers them.
Who is this tool for?
It's built for anyone comparing money scenarios before committing — budgeting a payment, sanity-checking a quote, or seeing what a change in rate or term actually costs.
Accuracy and limitations
- Results are estimates before tax, fees, and inflation unless an input explicitly covers them.
- Rates are treated as fixed for the whole period — variable-rate products will drift from this projection.
- This is educational maths, not financial advice. Check anything contractual with the lender or your accountant.
Related tools
Cite this calculator
Writing about this topic? Grab a citation — every link helps keep these tools free.
RevenueLab. (2026). PMI Calculator. Retrieved from https://www.revenuelab.fyi/toolbox/pmi
<p>Source: <a href="https://www.revenuelab.fyi/toolbox/pmi" target="_blank" rel="noopener">PMI Calculator — RevenueLab</a> (2026).</p>
Source: [PMI Calculator — RevenueLab](https://www.revenuelab.fyi/toolbox/pmi) (2026).