{
  "slug": "credit-utilization-calculator",
  "title": "Credit Utilization Calculator",
  "heading": "Credit Utilization Ratio Calculator",
  "category": "financial",
  "url": "https://www.revenuelab.fyi/toolbox/credit-utilization-calculator",
  "summary": "Overall and per-card utilization, plus the paydown to hit your target.",
  "description": "Revolving utilization is one of the largest movable factors in common credit scoring models, and it is measured two ways: overall across all your cards and individually on each one. A single maxed card can weigh on a score even when the overall ratio looks fine, which is why paying the right card matters more than paying the biggest. This calculator reports overall utilization, the utilization of the card you flag as highest, and exactly how much you would need to pay down to reach a target ratio. Because issuers report the statement balance rather than the balance after your payment, it also shows the amount to clear before the statement date if you want a lower number reported.",
  "formula": "Utilization = Balances ÷ Credit Limits × 100. Paydown = Balances − (Limits × Target ÷ 100).",
  "dateModified": "2026-09-06",
  "run_url": "https://www.revenuelab.fyi/api/public/calc?tool=credit-utilization-calculator",
  "inputs": [
    {
      "id": "totalBalance",
      "label": "Total revolving balances",
      "kind": "number",
      "hint": null,
      "default": 7400,
      "unit": "$",
      "min": 0,
      "max": 500000
    },
    {
      "id": "totalLimit",
      "label": "Total credit limits",
      "kind": "number",
      "hint": null,
      "default": 21000,
      "unit": "$",
      "min": 1,
      "max": 1000000
    },
    {
      "id": "cardBalance",
      "label": "Highest single card balance",
      "kind": "number",
      "hint": null,
      "default": 4300,
      "unit": "$",
      "min": 0,
      "max": 200000
    },
    {
      "id": "cardLimit",
      "label": "That card's limit",
      "kind": "number",
      "hint": null,
      "default": 5000,
      "unit": "$",
      "min": 1,
      "max": 200000
    },
    {
      "id": "target",
      "label": "Target utilization",
      "kind": "number",
      "hint": null,
      "default": 30,
      "unit": "%",
      "min": 1,
      "max": 100
    }
  ],
  "outputs": [
    {
      "id": "overall",
      "label": "Overall utilization",
      "format": "number",
      "hint": null,
      "primary": true
    },
    {
      "id": "card",
      "label": "Highest card utilization",
      "format": "number",
      "hint": null,
      "primary": false
    },
    {
      "id": "paydown",
      "label": "Paydown to hit target overall",
      "format": "currency",
      "hint": null,
      "primary": false
    },
    {
      "id": "cardPaydown",
      "label": "Paydown on that one card",
      "format": "currency",
      "hint": null,
      "primary": false
    },
    {
      "id": "headroom",
      "label": "Spending headroom under target",
      "format": "currency",
      "hint": null,
      "primary": false
    }
  ],
  "worked_example": {
    "inputs": [
      "Total revolving balances: 7400 $",
      "Total credit limits: 21000 $",
      "Highest single card balance: 4300 $",
      "That card's limit: 5000 $",
      "Target utilization: 30 %"
    ],
    "outputs": [
      "Overall utilization: 35.2",
      "Highest card utilization: 86",
      "Paydown to hit target overall: $1,100",
      "Paydown on that one card: $2,800",
      "Spending headroom under target: $0"
    ]
  },
  "how_to": {
    "title": "How to use this",
    "steps": [
      "Enter total revolving balances ($).",
      "Enter total credit limits ($).",
      "Enter highest single card balance ($).",
      "Enter that card's limit ($).",
      "Enter target utilization (%).",
      "Read your overall utilization on the right — it updates as you type.",
      "Hit Share to keep the scenario or send it to someone."
    ]
  },
  "scenarios": [
    {
      "name": "Conservative",
      "description": "Lower-end numbers — what if things land soft?",
      "values": {
        "totalBalance": 4400,
        "totalLimit": 12500,
        "cardBalance": 2600,
        "cardLimit": 3000,
        "target": 18
      }
    },
    {
      "name": "Typical",
      "description": "Defaults — the most common real-world setup.",
      "values": {
        "totalBalance": 7400,
        "totalLimit": 21000,
        "cardBalance": 4300,
        "cardLimit": 5000,
        "target": 30
      }
    },
    {
      "name": "Ambitious",
      "description": "Higher-end numbers — what if things really pop?",
      "values": {
        "totalBalance": 11800,
        "totalLimit": 33500,
        "cardBalance": 6900,
        "cardLimit": 8000,
        "target": 48
      }
    }
  ],
  "limitations": [
    "Results are estimates before tax, fees, and inflation unless an input explicitly covers them.",
    "Rates are treated as fixed for the whole period — variable-rate products will drift from this projection.",
    "This is educational maths, not financial advice. Check anything contractual with the lender or your accountant."
  ],
  "faq": [
    {
      "q": "Is 30% a real threshold?",
      "a": "It is a common rule of thumb, not a cliff. Modern models generally reward lower ratios continuously, with the best profiles often in low single digits."
    },
    {
      "q": "When is my balance reported?",
      "a": "Usually on the statement closing date, not the due date. Paying before the statement closes is what lowers the reported figure."
    },
    {
      "q": "Does a higher limit help?",
      "a": "Mechanically yes, it lowers the ratio. A limit-increase request may trigger an inquiry with some issuers."
    },
    {
      "q": "Do charge cards count?",
      "a": "Treatment varies by model and issuer reporting. Cards with no preset limit are often excluded from the ratio."
    }
  ],
  "related": [
    "https://www.revenuelab.fyi/toolbox/credit-score-improvement-calculator",
    "https://www.revenuelab.fyi/toolbox/credit-card-payoff-time-calculator"
  ],
  "license": "CC-BY-4.0",
  "citation": "RevenueLab — Credit Utilization Calculator (https://www.revenuelab.fyi/toolbox/credit-utilization-calculator)"
}