Credit Utilisation Calculator

One of the biggest parts of a credit score, and the fastest to change. Most tools give one overall figure. But scoring also looks at each card separately. So one maxed card can drag you down while your total looks fine.

Your cards

Leave any you do not have set to 0.

Your target

30% is the usual advice. Under 10% is where the strongest scores sit.

Your overall utilisation

0%

How that reads
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Total owed
$0
Total limits
$0
Worst single card
-
Pay off to hit your target
$0

Where the money goes

Each block is sized by its share, so you can see whether how that reads or total owed is the bigger part without reading a single number.

Try a different number

Move it and watch

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at {v} for card 1 balance

What this assumes

And what you can change

The rate stays the same throughoutA variable rate will not
Every payment lands on timeOne missed month changes the total
No fees beyond the ones you enteredLenders add their own
Not what you expected?

Why your own figure may differ

Your lender quotes a different total. Fees vary, and some are folded into the loan rather than billed.
Your first payment is part month. Interest from the day you draw the money is charged separately.
Your balance already includes fees. Check what the loan was written for, not what you asked for.

Card by card

Scoring looks at each card, not just the total. This is where a hidden problem shows up.

Utilisation for each card
CardBalanceLimitShare used

Credit utilisation: real examples

Three situations scoring treats very differently. Click any card to load it.

  • Healthy

    $2,500 owed across $15,000 of limits

    Spread sensibly across two cards.

    About 17% overall with no single card in trouble. Comfortably inside the range strong scores sit in.

    Load this scenario in the calculator →
  • The hidden problem

    A fine total hiding a maxed card

    $4,900 on a $5,000 card, and almost nothing on a $20,000 one.

    Overall is a healthy-looking 20%. but one card is at 98%, which scoring sees and most calculators do not.

    Load this scenario in the calculator →
  • Before applying

    Getting under 10% for a mortgage

    $6,000 owed against $20,000 of limits.

    The tool says exactly how much to pay down to reach your target - usually the fastest lever before an application.

    Load this scenario in the calculator →

Common questions about credit utilisation

What is credit utilisation?

The share of your available credit you are using. Owe $2,500 across cards with $15,000 of limits and you are using about 17%. It is one of the biggest parts of a credit score. Unlike the others, you can change it in one billing cycle.

What share should I aim for?

Under 30% is the usual advice. Under 10% is where the strongest scores sit. Zero is not ideal either. A little spending that you clear each month looks better than a card that is never used. Use the credit lightly. Do not avoid it.

One of my cards is nearly maxed but my total looks fine. Does that matter?

Yes. This is the part most tools miss. Scoring looks at each card as well as the total. A card at 98% can drag you down even when the total sits at a comfortable 20%. So this shows every card and flags the worst.

Why does my score drop when I pay in full every month?

Timing. Most banks report your balance on the statement date, not after you pay. Spend heavily and pay on the due date, and the big figure is the one reported. Pay some of it before the statement closes and the problem goes away. It costs you nothing.

Should I close a card I do not use?

Usually not. Closing it removes its limit from the sum. That pushes your share up overnight, even though you owe exactly the same. If there is no yearly fee, leave it open and unused.

How fast does paying down help?

Quickly. Usually within one or two billing cycles. The figure is worked out fresh each time your balance is reported. It carries no memory. That makes it the fastest thing you can change before applying for a mortgage or loan.

The guide behind this calculator