Free Guide
What is a Credit Score?
Everything you need to know about credit scores — what they are, how they work, and why they matter for your financial future.
What is a Credit Score?
A credit score is a three-digit number (typically 300–850) that represents your creditworthiness. Lenders, landlords, and even employers use it to evaluate how likely you are to repay debt responsibly.
The two most common scoring models are FICO and VantageScore. Both use a similar range and factors, though they weigh them slightly differently. Your score is calculated from information in your credit reports at Experian, Equifax, and TransUnion.
How Does It Work?
Your credit score is built from five key factors. Understanding what goes into your score is the first step toward improving it.
Payment History
35%Your track record of paying bills on time. Even one late payment can drop your score significantly.
Credit Utilization
30%How much of your available credit you're using. Aim to keep utilization below 30%.
Length of History
15%How long your credit accounts have been open. Longer histories demonstrate reliability.
Credit Mix
10%The variety of credit types you have — credit cards, loans, mortgage, etc.
New Credit Inquiries
10%Recent applications for new credit. Too many hard inquiries in a short period can lower your score.
Why Do You Need a Good Credit Score?
Your credit score affects almost every major financial decision. Here's how good versus poor credit plays out in real life:
Mortgage Rates
Good Credit
6.2% APR
Poor Credit
8.5% APR
On a $300K mortgage, that's ~$160/mo more — over $57,000 extra over 30 years.
Auto Loan Rates
Good Credit
5.0% APR
Poor Credit
13.5% APR
On a $30K car, bad credit costs you ~$7,000 more in interest.
Rental Approvals
Good Credit
Approved easily
Poor Credit
Higher deposits / denied
Landlords check credit. A low score can mean larger security deposits or outright rejection.
Insurance Premiums
Good Credit
Standard rates
Poor Credit
20–50% higher
Many insurers use credit-based insurance scores to set premiums.
Benefits of Good Credit
The difference between good and bad credit adds up to tens of thousands of dollars over your lifetime.
| Category | Good Credit (700+) | Poor Credit (<580) |
|---|---|---|
| 30-year mortgage rate | ~6.2% | ~8.5% |
| Auto loan rate (60 mo) | ~5.0% | ~13.5% |
| Credit card APR | ~18% | ~28% |
| Rental application | Approved | Denied / extra deposit |
| Security deposit (utilities) | Waived | $200–$500 |
| Insurance premium | Standard | 20–50% higher |
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