Credit Score Impact Calculator

Work out credit score impact instantly with clear inputs, formula shown and shareable results.

About Credit Score Impact Calculator

Scoring models weight payment history most heavily, then utilisation, then history length. This model applies published weightings as transparent point adjustments so you can see which behaviour is costing the most, rather than a black-box number.

Formula

Point model

Δ = -(utilisation-30)×1.6 - missed×35 + age adjustment

Worked example

With the default values below, Credit Score Impact Calculator returns Projected Score of 653. Change any input above and every figure here is recalculated in your browser.

Inputs used

Current Scoreaccepts 300–900: 720
Credit Utilisationaccepts 0–100 %: 45 %
Missed Payments In 24 Monthsaccepts 0–24: 1
Average Age Of Creditaccepts 0.5–40: 5

Results

Projected Score: 653
Estimated Score Movement: -67
Points Attributed To Utilisation: -24
Largest Factor: Missed payments

Step by step

1Values used
2Point model
3Projected Score= 653
4Estimated Score Movement= -67
5Points Attributed To Utilisation= -24
6Largest Factor= Missed payments

Assumptions and limits

The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
Figures are rounded for display to whole numbers, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
Figures are estimates. Lenders apply their own rounding, fees and eligibility rules, and rates change. This is not financial advice — confirm the numbers with your lender.
This is an estimate for general information and not professional financial, tax or legal advice. See the full disclaimer for the limits that apply to this kind of calculator.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Figures are estimates. Lenders apply their own rounding, fees and eligibility rules, and rates change. This is not financial advice — confirm the numbers with your lender.

Frequently Asked Questions

Is this my real bureau score?

No. Bureaus use proprietary models on your full file. This shows the direction and rough scale of each factor.

How fast do missed payments fade?

Their weight decays over about two years, but the record itself usually stays visible for longer.