A conventional mortgage rate is the number every lender advertises and almost nobody explains. You see 6.4% on one site and 6.9% on another on the same Tuesday afternoon, and it is tempting to assume one of them is lying. Usually neither is. They are pricing different borrowers, different loan sizes, and different amounts of profit into the same three-word phrase.
Understanding what sits behind a conventional quote changes how you shop. It also tells you which parts of the rate you can control in the next 30 days and which parts you cannot.
What the conventional label actually means
Conventional simply means the loan is not insured by the federal government. No FHA mortgage insurance premium, no VA guaranty fee, no USDA backing. Instead, the loan is underwritten to guidelines set by Fannie Mae and Freddie Mac, which buy most of these mortgages from lenders and package them into securities.
That secondary-market pipeline is why conventional pricing tracks the 10-year Treasury and mortgage-backed securities so closely. When bond yields move, conventional rates usually follow within days. The FHA program has its own investor base and its own pricing quirks, which is why the two do not always move in lockstep. If you want to see where the two paths diverge on real numbers, the breakdown of how an FHA loan and a conventional loan spend your money is a useful starting point.
There is one hard boundary worth memorising: the conforming loan limit. For 2025, a single-family home in most of the country caps out at $806,500. Cross that number and you are in jumbo territory, where rates are priced differently and sometimes drop below conforming rates when lenders want that business.
Why two lenders quote you different rates on the same day
Fannie and Freddie publish loan-level price adjustments, known as LLPAs. These are add-ons or discounts based on credit score, loan-to-value ratio, property type, occupancy, and whether it is a condo. Every lender applies them, but lenders differ in how much margin they add on top, how much they charge for servicing, and how aggressively they discount certain loan sizes.
A credit union with a small volume target may beat a national call centre by 0.375% on a $250,000 loan and lose by 0.25% on a $750,000 one. That is not dishonesty. It is two different business models showing up in the same rate sheet.
The three levers that move your conventional rate most
Credit score, and the cliffs between tiers
Pricing is not a smooth curve. It moves in steps. The difference between a 638 and a 662 score can be worth 1.25% of the loan amount in fees. On a $380,000 mortgage, that is roughly $4,750, paid as a higher rate or as discount points.
Above 740, you are in the cheap seats. Below 680, the add-ons stack quickly, particularly at high loan-to-value. If your score is sitting at 695 and you need three months to fix a maxed-out card and land at 725, the wait is often worth far more than any rate lock you could negotiate today.
Down payment and loan-to-value
Going from 5% down to 20% down does two things at once. It removes private mortgage insurance and it removes several LLPAs. A borrower at 95% LTV with a 720 score might pay 1.5% of the loan in pricing adjustments. The same borrower at 80% LTV pays close to zero.
Private mortgage insurance on a conventional loan typically runs 0.3% to 1.5% of the loan amount annually, and it is not permanent. Under the Homeowners Protection Act, it must be cancelled automatically at 78% LTV based on the original schedule, and you can request removal at 80%. Ask your servicer for the current value-based removal rules, because appreciation can get you there years early.
Term length, points, and how long you plan to stay
A 15-year fixed conventionally prices about 0.5% to 0.75% below a 30-year fixed. That spread is real money, but the payment jump is bigger than most people expect. On a $380,000 loan, moving from 30 to 15 years can add $700 or more to the monthly bill.
Discount points are the other dial. One point equals 1% of the loan and typically buys a rate reduction of about 0.25%. On $380,000, one point costs $3,800 and saves roughly $60 a month, so the break-even is around 63 months. If you will sell or refinance before year five, points usually lose.
Fixed and adjustable are both conventional
Plenty of buyers assume “conventional” means “30-year fixed.” It does not. Conventional loans come as 30-year fixed, 15-year fixed, and adjustable-rate mortgages, most commonly a 5/6 ARM or 7/6 ARM.
- 5/6 ARM: fixed for five years, then adjusts every six months against SOFR, typically capped at 2% per adjustment and 5% over the life of the loan.
- 7/6 ARM: same structure with seven years of stability, usually priced 0.5% to 1% below the 30-year fixed.
- 30-year fixed: the default choice, and the one that makes sense if you plan to hold the home past a decade.
If you are near-certain to move or refinance inside seven years, the ARM savings are genuine. If there is a decent chance you will still be there in year eleven, take the fixed and stop thinking about it.
Where conventional rates lose to FHA, and where they win
On a screen, an FHA rate often looks a quarter-point lower than a conventional rate. That comparison is a trap, because the FHA loan carries a 1.75% upfront mortgage insurance premium rolled into the balance and an annual premium that usually lasts the life of the loan. The real cost of the FHA upfront mortgage insurance fee is where most first-time buyers get surprised.
Conventional generally wins on total cost once your score clears about 700 and you can put down 5% or more. FHA wins when credit is bruised, the down payment is thin, or gift funds and higher debt ratios need more forgiving underwriting. If you are weighing the two, compare the APR and the five-year total cost, not the headline rate. The same discipline applies when you look at what FHA rates really cost after insurance, since the gap between advertised and effective cost is wider there.
Self-employed buyers face an extra wrinkle. Conventional underwriting wants two years of clean, documented income, and a heavy write-off strategy can sink an otherwise strong file. There are specific mortgage options that work for self-employed borrowers when the standard conventional path stalls.
How to shop conventional mortgage rates without getting played
Get quotes from at least three lenders within a 14-day window. Mortgage inquiries in that window are treated as a single credit pull by the scoring models, so there is no penalty for shopping properly. Ask each lender for a written Loan Estimate, not a verbal rate.
- Compare the APR alongside the note rate, because the APR folds in points and fees.
- Ask what the rate assumes: credit tier, LTV, occupancy, and lock period. A 45-day lock and a 90-day lock are not the same product.
- Request pricing both with and without points so you can see the break-even yourself.
- Ask whether the lender offers a float-down if rates improve before closing, and what it costs.
- Confirm the total lender fees in box A of the Loan Estimate, not just the rate.
A single quarter-point difference on a $380,000 loan is about $63 a month, which compounds to roughly $22,000 across 30 years. That is the prize for an afternoon of phone calls. The process for comparing loan types side by side is worth reading before you call anyone, because most expensive mistakes happen in the first conversation, not the last.
Two questions that expose a weak quote fast
Ask the loan officer to state, in writing, the credit score and loan-to-value they priced you at. If they hedge, the quote is a placeholder that will change at underwriting. A real quote names its assumptions.
Then ask what happens to the rate if your score comes in ten points lower at final pull. Lenders with tight overlays will reprice you upward; lenders with pricing room will absorb it. The answer tells you more about the institution than any advertised rate ever will, and it is the difference between a quote you can plan around and one that quietly costs you a few thousand dollars at the closing table.