FICO is one type of credit score, not a separate thing

A credit score is any three-digit number that summarizes your borrowing history. A FICO score is the most common brand of credit score — made by the Fair Isaac Corporation — and ranges from 300 to 850. When a lender says "credit score" without naming a brand, they almost always mean FICO. But other companies make credit scores too, and they can give you a different number for the same person.

Think of it like soft drinks: "soda" is the category, and "Coca-Cola" is one brand. FICO is the Coca-Cola of credit scores — it's what most lenders use, so it matters most to you. But Experian, Equifax, and TransUnion (the three credit bureaus) each sell their own scoring models, and companies like VantageScore make competing products. You might have a FICO score of 720 and a VantageScore of 680 at the same moment, and both are real.

Key Takeaways

  • FICO is a brand name for credit scores made by Fair Isaac Corporation; "credit score" is the broader category that includes FICO and other scoring models.
  • Most lenders use FICO scores, so your FICO number matters more than other scores when you explore for a mortgage, car loan, or credit card.
  • Your FICO score can differ from your VantageScore or other brand scores because each model weighs payment history, debt, and credit age differently.
  • You have multiple FICO scores — one from each bureau (Equifax, Experian, TransUnion) — because each bureau holds slightly different information about you.
  • Free credit score websites often show you non-FICO scores, which is why the number they display may not match what a lender sees.

Why lenders care about FICO more than other credit scores

FICO scores have been around since 1989 and are used by roughly 90 percent of lenders in the United States. Banks, credit card companies, and mortgage lenders built their lending rules around FICO numbers over decades. When a mortgage company says "we need a 620 score," they mean FICO. When a credit card issuer pulls your score, it's usually FICO.

Other scoring models exist, but they're newer or less widely adopted. VantageScore launched in 2006 and is used by some lenders and by most free credit-monitoring websites. Experian, Equifax, and TransUnion each have their own proprietary scores. But because most lenders trained their systems on FICO, that's the number that actually affects whether you get approved and what interest rate you pay.

How FICO and other scores are calculated differently

All credit scores look at the same raw data — your payment history, how much debt you carry, how long you've had credit accounts, and a few other factors. But they weight those factors differently, which is why your FICO can be 50 points higher or lower than your VantageScore.

FICO weighs payment history at 35 percent, amounts owed at 30 percent, length of credit history at 15 percent, credit mix at 10 percent, and new credit at 10 percent. VantageScore uses a different formula: payment history is 40 percent, age and type of credit is 21 percent, credit utilization is 20 percent, balances are 11 percent, and recent credit is 8 percent. A single late payment or a high credit card balance will hurt you differently depending which model is scoring you.

You have multiple FICO scores, not just one

Each of the three credit bureaus — Equifax, Experian, and TransUnion — collects its own information about you and calculates its own FICO score. Your FICO score from Equifax might be 710, while Experian shows 705 and TransUnion shows 715. These differences exist because not every creditor reports to all three bureaus, and bureaus sometimes have errors or outdated information.

When a lender pulls your credit, they usually request the FICO score from one or two bureaus, not all three. A mortgage lender often pulls all three and uses the middle score. A credit card company might pull just one. This is why the number you see on a free website (which might be from Experian) can differ from the number a lender actually sees (which might be from TransUnion).

Why free credit score websites show you a different number

Most free credit-monitoring services — Credit Karma, Credit Sesame, Discover's free score tool — show you a VantageScore or a non-FICO proprietary score, not your actual FICO. They do this because FICO charges lenders for access to FICO scores, and free websites can't afford to show you the real FICO number. So they show you something free instead, which is usually within 20 or 30 points of your FICO but not exact.

This creates confusion: you check Credit Karma and see 680, then explore for a credit card and the lender tells you your score is 710. Both numbers are real — they're just measuring different things. If you want to see your actual FICO scores, you can buy them directly from myfico.com, or some credit card issuers and banks show your FICO score for free in your online account.

Which score matters when you're borrowing money

When you explore for a mortgage, auto loan, or credit card, the lender uses FICO. Specifically, they use one of three FICO versions: FICO 8 (the most common), FICO 9, or FICO 10T. Most lenders still use FICO 8, which was released in 2009. Mortgage lenders sometimes use older versions like FICO 5 or FICO 4. The differences between versions are small — usually a few points — but they exist.

Your VantageScore, your Experian proprietary score, or any other brand score will not affect whether you get approved for a loan or what rate you pay. Those scores are useful for monitoring your credit health and spotting errors on your report, but they don't determine lending decisions. Focus on your FICO score, and specifically on the FICO score from the bureau the lender is most likely to pull.

How to check your actual FICO scores

You can see your FICO scores through several routes. Some credit card issuers and banks display your FICO score free in your online account — Chase, Bank of America, Discover, and others offer this. You can also buy your FICO scores directly from myfico.com, which costs around $20 per score (you have three, one from each bureau). Some mortgage lenders will show you your FICO scores before you formally explore.

You also have the right to a free credit report from each bureau once per year through annualcreditreport.com, though that report doesn't include your score — it shows the raw data the score is based on. Checking your own credit report and score does not lower your score. Only hard inquiries from lenders (when you explore for credit) can temporarily lower it.

Frequently Asked Questions

Is my credit score the same as my FICO score?

Not necessarily. "Credit score" is a broad term for any score based on your credit history. FICO is the most common brand, so when a lender mentions your score, they usually mean FICO. But free websites often show you a different brand of score. Ask the lender or website which score they're showing you if you're unsure.

Why does my credit score change every time I check it?

Your credit report is updated constantly as creditors report new payments, balances, and accounts. Each time your report changes, your score recalculates. Small changes in your balances or payment status can shift your score by a few points. This is normal and doesn't mean something is wrong.

Can I improve my FICO score faster than other credit scores?

No. All credit scores improve the same way: pay on time, keep credit card balances low, don't close old accounts, and avoid explore for too much new credit at once. The actions that help your FICO help your VantageScore and other scores too, just at slightly different speeds because they weight factors differently.

Do lenders see all three of my FICO scores?

Usually not all three at once. A mortgage lender typically pulls all three and uses the middle one. Credit card companies and auto lenders often pull just one or two. You won't know which bureau a lender pulls unless you ask them after you explore.

Should I pay for my FICO score if I can see my credit score free?

Only if you're about to explore for a major loan like a mortgage or auto loan. For everyday credit monitoring, a free score from your bank or credit card issuer is usually enough to spot problems. If you're shopping for a mortgage, paying to see your actual FICO scores from all three bureaus can help you understand what lenders will see.