Conventional Mortgage Calculator
This conventional mortgage calculator models the full Florida payment including PMI, and shows the balance at which PMI can come off.
By Onias Derilus, Mortgage Capital · NMLS# 1859012 · Last Updated: June 2026
PMI applies above 80% LTV and can be removed once the balance reaches 80% of original value. Florida insurance varies widely by county and wind exposure. Estimate only.
A conventional loan is any mortgage not backed by FHA, VA or USDA. It is the default path for buyers with solid credit, and it prices better than FHA at higher credit scores.
The distinguishing feature is that mortgage insurance is removable. Once you reach 80% loan-to-value, PMI can come off, which is not true of most current FHA loans.
These figures are estimates. For neutral, official guidance on mortgage costs and what lenders can charge, see the CFPB's Owning a Home guide.
How to Use This Calculator
- 1
Enter price, down payment, rate and term.
- 2
Enter annual taxes and insurance — Florida insurance is the line most often underestimated.
- 3
Add HOA or condo dues.
- 4
Set a PMI rate if you are putting less than 20% down; it scales with credit score and loan-to-value.
The Formula & Assumptions
Loan = price ×
(1 − down%)
PMI = loan × PMI rate ÷ 12
(only above 80% LTV)
Payment = P&I + taxes ÷ 12
+ insurance ÷ 12
+ HOA + PMI
Conventional loans allow as little as 3% down for eligible first-time buyers through HomeReady and Home Possible, both of which also price mortgage insurance more favorably than standard conventional at the same loan-to-value.
PMI is removable in two ways: request cancellation at 80% of original value, or automatic termination at 78%. An appraisal showing appreciation can also get you there early, which matters in Florida markets that have moved quickly.
Above the conforming loan limit the loan becomes a jumbo, with different underwriting and usually a larger down payment. Several South Florida price points sit right at that boundary, so check the current county limit.
Frequently Asked Questions
How much down do I need on a conventional loan?
As little as 3% for eligible first-time buyers using HomeReady or Home Possible, and 5% for most other buyers. Twenty percent avoids mortgage insurance entirely but is not required.
When does PMI come off?
You can request cancellation once the balance reaches 80% of the original value, and it terminates automatically at 78%. Appreciation can also qualify you early with a new appraisal, subject to lender seasoning rules.
Is conventional better than FHA?
Usually at higher credit scores, because pricing and removable mortgage insurance both favor conventional. FHA tends to win at lower scores or with recent credit events, where conventional pricing deteriorates faster.
What raises my PMI rate?
A lower credit score and a higher loan-to-value both raise it, and the two compound. Moving from 5% down to 10% down, or gaining twenty credit score points, can cut the monthly premium noticeably.
Ready to Turn Your Estimate Into a Real Pre-Approval?
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Rates are illustrative only. APR and payments vary by credit score, loan amount, and market conditions. Subject to credit approval. Not a commitment to lend. NMLS# 1859012. Equal Housing Lender.
It estimates the payment and qualifying picture on a conventional mortgage, including where mortgage insurance applies and where the conforming limit sits.
Conventional Loan Calculator in Florida
Conventional financing is the default for most Florida buyers with solid credit, and it has a clear advantage over FHA on condos, because the building review is often less restrictive. You can remove mortgage insurance later, once the loan reaches 80% of value, which matters in markets where values have risen quickly.
How the Conventional Loan Calculator Works
The calculator builds the principal and interest payment, adds taxes and insurance, and layers in mortgage insurance when the loan runs above 80% of value.
The Conventional Loan Formula, Explained
Conventional payment = principal and interest + taxes + insurance + PMI where LTV exceeds 80%
Conventional loans follow Fannie Mae and Freddie Mac rules. Down payments start at 3% for qualifying buyers, and mortgage insurance applies until the loan reaches 80% of value.
Pricing moves with credit score and LTV together through loan-level adjustments. A higher score can lower the rate materially at the same down payment.
The Complete Conventional Loan Calculator Guide
Conventional is the benchmark every other program answers to. If you qualify for it comfortably, it usually costs less over time than FHA, mainly because the mortgage insurance ends.
The two levers are credit and down payment, and they interact. Moving from 15% down to 20% removes mortgage insurance, while a twenty-point credit improvement can lower the rate on the same loan.
Check the conforming limit for your county before assuming a loan is conventional. Above it the loan becomes a jumbo, with different underwriting and usually a larger down payment.
Conventional Loan Calculator FAQ
What credit score do I need?
Most conventional programs start around 620, with pricing improving considerably as the score rises. Below that, FHA is often the more realistic route.
When does conventional mortgage insurance end?
You can usually remove it once the loan reaches 80% of value, and it falls away automatically at 78% of the original value. A new appraisal is sometimes needed for early removal.