Skip to main content
CodeLint.Dev Dev Tools

Credit Score Estimator

Estimate how the standard scoring factors combine, and see which ones move a score most.

Credit Score Estimator

Educational estimate based on FICO 5 scoring factors. No personal data is collected or transmitted.

Payment History 35%

Whether you pay bills on time

25/100

Credit Utilization 30%

% of available credit currently used

15%
0% (best)30%50%75%100%

Good. Under 30% is recommended.

Credit Age 15%

Average age of your credit accounts

35/100

Account Mix 10%

Variety of credit types (cards, loans, mortgage)

55/100

New Credit / Inquiries 10%

Hard inquiries in the last 2 years

85/100
1

A few inquiries — normal for credit shopping.

Estimated Credit Score

603

Fair

FICO range: 300–850

Score Ranges

Poor 300–579
Fair 580–669
Good 670–739
Very Good 740–799
Exceptional 800–850

Factor Breakdown

Payment History 25/100
Utilization 90/100
Credit Age 35/100
Account Mix 55/100
New Credit 85/100

What a credit score is built from

Weightings below follow the widely published FICO model. Other models and other countries differ in detail, and the ordering is broadly consistent.

FactorWeightWhat it measuresHow fast it moves
Payment history~35%Whether you have paid on timeSlowly — a late payment can stay for 6–7 years
Amounts owed / utilisation~30%Balances relative to limitsFast — updates with each statement
Length of credit history~15%Average and oldest account ageOnly with time; closing an old account hurts
Credit mix~10%Variety of account typesSlowly, and not worth engineering
New credit~10%Recent applications and hard searchesRecovers over 6–12 months

Utilisation is the fastest lever available: it is nearly a third of the score and recalculates every month. Paying a card down before the statement date — not the due date — is the single most effective short-term action.

Widely believed things that are not true

  • "Checking your score lowers it"Checking your own score is a soft search and has no effect. Only a hard search from a credit application counts, and one has a small, temporary impact.
  • "Carrying a balance builds credit"It does not. Paying in full each month reports the same on-time payment and costs no interest. This myth is expensive at typical card rates.
  • "Closing unused cards helps"It usually hurts twice — it reduces total available credit, raising utilisation, and it eventually shortens average account age.
  • "There is one credit score"There are many, from different bureaux and models, and lenders often use their own. The score you see is indicative, not the one you will be assessed on.
  • "Income affects your score"It does not appear in the score at all. Lenders consider it separately when deciding affordability.
  • "Debit card use builds credit"It is not credit and is not reported. Neither, in most markets, is rent unless you use a specific reporting service.

About

The Credit Score Estimator calculates an estimated score range (300–850) based on the five factors used in FICO scoring: Payment History (35%), Credit Utilisation (30%), Length of Credit History (15%), Credit Mix (10%), and New Credit (10%). This is an educational tool — actual scores depend on your full credit report and the specific model used by a lender.

How to use

  1. 1 Adjust the Payment History slider — missed payments lower your score significantly.
  2. 2 Set your Credit Utilisation — keeping it below 30% is recommended.
  3. 3 Enter the age of your oldest credit account in years.
  4. 4 Select how many types of credit you have (cards, loans, mortgage, etc.).
  5. 5 Enter recent hard enquiries (credit applications in the last 2 years).
  6. 6 Your estimated score range and band (Poor / Fair / Good / Very Good / Exceptional) appear instantly.
What is the most important factor in a FICO credit score?
Payment history is the single most important factor, accounting for 35% of your FICO score. Even one missed payment can significantly lower your score, and the impact is greater the more recent the missed payment. Consistently paying all bills on time — even the minimum payment — is the most effective thing you can do to build or maintain a good score.
What credit utilisation ratio should I aim for?
Financial experts generally recommend keeping your overall credit utilisation below 30% — ideally below 10% for the best scores. Utilisation is calculated as your total credit card balances divided by your total credit limits. For example, if you have a $10,000 limit and a $2,500 balance, your utilisation is 25%. Paying down balances or requesting a credit limit increase both reduce utilisation.
Does checking my own credit score hurt my credit?
No. Checking your own credit score is a soft inquiry and has no impact on your score. Only hard inquiries — initiated by lenders when you apply for credit — can temporarily lower your score by a few points. Multiple hard inquiries for the same type of loan (mortgage, auto) within a short window (14–45 days) are typically counted as a single inquiry by credit scoring models.