{
  "calculator": "cac-calculator",
  "title": "CAC Calculator",
  "site": "AI Biz Hub",
  "input": {},
  "defaults_used": {
    "sales_marketing_spend": 32000,
    "new_customers": 40,
    "arpu_monthly": 129,
    "gross_margin_percent": 78,
    "monthly_churn_percent": 4
  },
  "result": {
    "primaryLabel": "Customer acquisition cost",
    "primaryValue": 800,
    "primaryFormat": "currency",
    "summary": "CAC is spend divided by customers acquired in the same period. Each customer returns $100.62 of gross profit a month, so CAC pays back in 7.95 months; over an average 25-month lifetime that is 3.14× the CAC.",
    "metrics": [
      {
        "label": "Payback period",
        "value": 7.95,
        "format": "months"
      },
      {
        "label": "Gross profit per customer per month",
        "value": 100.62,
        "format": "currency"
      },
      {
        "label": "LTV (gross profit)",
        "value": 2515.5,
        "format": "currency"
      },
      {
        "label": "LTV:CAC",
        "value": 3.14,
        "format": "ratio"
      }
    ],
    "chart": {
      "title": "What a customer costs vs what they return",
      "subtitle": "CAC against lifetime gross profit (LTV). 3× is the usual healthy line.",
      "bars": [
        {
          "label": "CAC",
          "value": 800,
          "format": "currency"
        },
        {
          "label": "LTV (gross profit)",
          "value": 2515.5,
          "format": "currency",
          "emphasis": true
        },
        {
          "label": "3× CAC",
          "value": 2400,
          "format": "currency"
        }
      ]
    },
    "warnings": [],
    "assumptionsEcho": {
      "sales_marketing_spend": 32000,
      "new_customers": 40,
      "arpu_monthly": 129,
      "gross_margin_percent": 78,
      "monthly_churn_percent": 4
    }
  },
  "provenance": {
    "run": "https://aibizhub.io/api/run/cac-calculator",
    "page": "https://aibizhub.io/cac-calculator/",
    "methodology": "https://aibizhub.io/cac-calculator/",
    "contract": "https://aibizhub.io/contracts/cac-calculator.json",
    "engine": "https://aibizhub.io/engines/cac-calculator.js",
    "engine_sha256": "cf54cc4a195c7167791cc5289fec749107ac8d20e52f06dd7db8417473439535",
    "build": "42c727dd573e245d1be09199a062c665d7f6f47e",
    "prices_verified": "2026-10-24",
    "prices_source": "https://aidevhub.io/api/models.json"
  },
  "disclaimer": "Business planning estimates — not legal, tax, or accounting advice.",
  "license": "https://creativecommons.org/licenses/by/4.0/",
  "cite": "AI Biz Hub, CAC Calculator (engine cf54cc4a195c), https://aibizhub.io/api/run/cac-calculator"
}