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FHA vs Conventional Loan: Key Differences Explained
The FHA vs conventional loan calculator answers one of the most consequential questions a first-time home buyer faces: which mortgage program is actually cheaper for me? An FHA loan is insured by the Federal Housing Administration, which is part of HUD, while a conventional loan is offered by a private lender without any direct government insurance backing. The federal guarantee on FHA loans lets lenders offer more flexible credit and down payment requirements, but it also comes with mandatory mortgage insurance that lasts much longer than the private mortgage insurance attached to most conventional loans.
The headline differences in the FHA vs conventional comparison are credit score, down payment, mortgage insurance, and loan limits. FHA accepts scores as low as 500 (with 10% down) or 580 (with 3.5% down), while conventional lenders generally require a 620 minimum. FHA caps loan amounts by county, the 2024 floor is roughly $498,000 and the ceiling reaches about $1.15 million in high-cost areas. Conventional conforming limits track the Federal Housing Finance Agency cap, currently $766,550 in most counties, with jumbo programs available above that line. Use our FHA loan calculator and mortgage calculator for deeper individual modeling on either product.
FHA Mortgage Insurance Explained: UFMIP and MIP
FHA mortgage insurance has two components that surprise many buyers. The upfront mortgage insurance premium (UFMIP) is a one-time charge of 1.75% of the base loan amount, due at closing. Most borrowers finance this into the loan balance rather than paying it in cash, which means a $400,000 home with 3.5% down would carry a base loan of $386,000 plus $6,755 in UFMIP, totaling $392,755 in financed principal. That added principal accrues interest for the entire loan term; a hidden cost the FHA vs conventional loan calculator captures explicitly.
The annual MIP is currently 0.55% of the loan amount per year for most FHA loans (a rate cut from 0.85% that HUD announced in 2023). It is divided by 12 and added to your monthly payment. According to HUD's official FHA program page, MIP lasts the entire loan term if you put less than 10% down, or 11 years if you put 10% or more down. That lifetime MIP is the single biggest reason the FHA vs conventional comparison so often favors conventional for higher-credit buyers who can build equity quickly.
Conventional PMI Rules: When It Applies and When It Drops Off
Private mortgage insurance (PMI) on a conventional loan is required only when your loan-to-value ratio exceeds 80%, meaning you put less than 20% down. PMI rates vary widely based on credit score, ranging from about 0.19% annually for borrowers with 760+ scores at 80 to 85% LTV up to 1.5% for borrowers near the 620 minimum at 95 to 97% LTV. This is why credit score matters so dramatically more on a conventional loan than on an FHA loan: a borrower with a 760 score might pay $63 a month in PMI on a $400,000 loan, while a 660 score borrower might pay $350 on the same loan.
Crucially, PMI ends automatically when your loan reaches 78% LTV based on the original amortization schedule, per the federal Homeowners Protection Act. You can also request cancellation at 80% LTV based on either the original schedule or a new appraisal showing higher value. The Fannie Mae conventional loan guidelines spell out PMI cancellation procedures and acceptable cancellation methods. Use our mortgage insurance calculator to estimate exactly when your PMI will drop off and how much you'll pay in total.
When FHA Is Better Than Conventional
There are several scenarios where the FHA vs conventional loan calculatorreliably points to FHA as the winner. The first is moderate or imperfect credit. At credit scores between 580 and 680, conventional PMI rises sharply while FHA MIP stays flat at 0.55%. A borrower with a 640 score and 5% down will typically save $80 to $200 per month on FHA versus conventional, and that gap compounds over the first 11 years of the loan. The second scenario is a high debt-to-income ratio, where FHA's 50%+ DTI flexibility opens doors conventional lenders close.
The third scenario is recent credit damage. FHA allows borrowers to qualify just two years after a Chapter 7 bankruptcy and three years after a foreclosure, compared with four and seven years for conventional. FHA is also assumable, meaning a future buyer can take over your loan at your original rate, a powerful selling feature if you locked in a 3% mortgage in 2021 and rates remain in the 6 to 7% range when you sell. Investopedia's comparison of FHA vs conventional loans notes the assumable feature alone can add tens of thousands of dollars to a home's resale value in a high-rate market.
Credit Score and FHA Loans: Why FHA Is the Bad-Credit Champion
The relationship between credit score and FHA loans is the single biggest reason FHA exists. Unlike a conventional loan where the lender prices both the interest rate and the PMI based on your credit score, FHA MIP is one flat rate for everyone. A borrower with a 580 score pays exactly the same 0.55% MIP as a borrower with an 800 score. This means FHA effectively subsidizes lower-credit borrowers at the expense of higher-credit borrowers, who would do better on conventional. Run the FHA vs conventional comparison through this calculator at different credit scores to see this effect clearly.
That said, FHA interest rates do still vary slightly by credit score because individual lenders price loan-level price adjustments (LLPAs). The spread is narrower than conventional, typically 0.125% to 0.5% across the entire 580 to 800 range, versus 0.5% to 1.5% on conventional. Combined with the flat MIP, FHA's all-in cost is far less credit-sensitive. Read more about banking and mortgage products in our full library of banking calculators to compare every loan option side by side.
Making the Final FHA vs Conventional Decision
After running the numbers in the FHA vs conventional loan calculator, use this short framework to lock in your decision. Choose FHA if: (1) your credit score is between 500 and 679; (2) you have less than 5% to put down; (3) your debt-to-income ratio exceeds 43%; or (4) you had a recent bankruptcy or foreclosure. Choose conventional if: (1) your credit score is 720 or higher; (2) you can put 10% or more down; (3) you plan to stay in the home long enough to cancel PMI at 80% LTV; or (4) the property exceeds FHA county limits.
Many smart buyers split the difference: start with an FHA loan to get into the home with low credit or low down payment, then refinance into a conventional loan once their credit improves and their home value rises enough to hit 20% equity. The refinance typically breaks even within 24 to 36 months when MIP savings outweigh closing costs. Whichever path you choose, shop at least three lenders, get loan estimates on the same day, and add closing costs into the total cost comparison you ran in this calculator.