{
  "slug": "savings-rate-fi",
  "title": "Savings Rate to Retirement Calculator",
  "heading": "Savings Rate & Financial Independence Calculator",
  "category": "financial",
  "url": "https://www.revenuelab.fyi/toolbox/savings-rate-fi",
  "summary": "How your savings rate maps to years until you can stop working.",
  "description": "Years to financial independence depends almost entirely on savings rate, not income. Going from a 15% to a 40% savings rate cuts decades off the timeline at any salary.",
  "formula": "Years = time for portfolio to reach annual expenses ÷ safe withdrawal rate.",
  "dateModified": "2026-09-30",
  "run_url": "https://www.revenuelab.fyi/api/public/calc?tool=savings-rate-fi",
  "inputs": [
    {
      "id": "income",
      "label": "Annual take-home income",
      "kind": "number",
      "hint": null,
      "default": 92000,
      "unit": "$",
      "min": 0,
      "max": null
    },
    {
      "id": "spending",
      "label": "Annual spending",
      "kind": "number",
      "hint": null,
      "default": 58000,
      "unit": "$",
      "min": 0,
      "max": null
    },
    {
      "id": "portfolio",
      "label": "Current portfolio",
      "kind": "number",
      "hint": null,
      "default": 120000,
      "unit": "$",
      "min": 0,
      "max": null
    },
    {
      "id": "returnRate",
      "label": "Real return after inflation",
      "kind": "number",
      "hint": null,
      "default": 5,
      "unit": "%",
      "min": 0,
      "max": 12
    },
    {
      "id": "swr",
      "label": "Safe withdrawal rate",
      "kind": "number",
      "hint": null,
      "default": 4,
      "unit": "%",
      "min": 2,
      "max": 8
    }
  ],
  "outputs": [
    {
      "id": "years",
      "label": "Years to financial independence",
      "format": "decimal",
      "hint": null,
      "primary": true
    },
    {
      "id": "rate",
      "label": "Your savings rate",
      "format": "percent",
      "hint": null,
      "primary": false
    },
    {
      "id": "target",
      "label": "Portfolio target",
      "format": "currency",
      "hint": null,
      "primary": false
    },
    {
      "id": "save",
      "label": "Saved per year",
      "format": "currency",
      "hint": null,
      "primary": false
    },
    {
      "id": "monthly",
      "label": "Saved per month",
      "format": "currency",
      "hint": null,
      "primary": false
    },
    {
      "id": "gap",
      "label": "Gap to target",
      "format": "currency",
      "hint": null,
      "primary": false
    }
  ],
  "worked_example": {
    "inputs": [
      "Annual take-home income: 92000 $",
      "Annual spending: 58000 $",
      "Current portfolio: 120000 $",
      "Real return after inflation: 5 %",
      "Safe withdrawal rate: 4 %"
    ],
    "outputs": [
      "Years to financial independence: 21",
      "Your savings rate: 37.0%",
      "Portfolio target: $1,450,000.00",
      "Saved per year: $34,000.00",
      "Saved per month: $2,833.33",
      "Gap to target: $1,330,000.00"
    ]
  },
  "how_to": {
    "title": "How to use this",
    "steps": [
      "Enter annual take-home income ($).",
      "Enter annual spending ($).",
      "Enter current portfolio ($).",
      "Enter real return after inflation (%).",
      "Enter safe withdrawal rate (%).",
      "Read your years to financial independence 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": {
        "income": 55000,
        "spending": 35000,
        "portfolio": 70000,
        "returnRate": 3,
        "swr": 2.4
      }
    },
    {
      "name": "Typical",
      "description": "Defaults — the most common real-world setup.",
      "values": {
        "income": 92000,
        "spending": 58000,
        "portfolio": 120000,
        "returnRate": 5,
        "swr": 4
      }
    },
    {
      "name": "Ambitious",
      "description": "Higher-end numbers — what if things really pop?",
      "values": {
        "income": 147000,
        "spending": 93000,
        "portfolio": 190000,
        "returnRate": 8,
        "swr": 6.4
      }
    }
  ],
  "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": "How does the savings rate & financial independence calculator work?",
      "a": "Years to financial independence depends almost entirely on savings rate, not income. Going from a 15% to a 40% savings rate cuts decades off the timeline at any salary. The underlying maths is: Years = time for portfolio to reach annual expenses ÷ safe withdrawal rate."
    },
    {
      "q": "What do I need to enter?",
      "a": "5 values: annual take-home income, annual spending, current portfolio, real return after inflation, and safe withdrawal rate. Each field starts with a sensible default, so you can change one number at a time and watch the result move."
    },
    {
      "q": "What does the years to financial independence result mean?",
      "a": "It is returned as a decimal number and updates live as you edit the inputs, so you can compare two or three versions of a scenario in a few seconds."
    },
    {
      "q": "Is this calculator free, and do I need an account?",
      "a": "Yes, it's free, and no account is required. Nothing you type is stored on our servers — the maths runs entirely in your browser."
    },
    {
      "q": "How accurate is the result?",
      "a": "It applies the standard formula exactly, so the arithmetic is precise. Results are estimates before tax, fees, and inflation unless an input explicitly covers them."
    },
    {
      "q": "Who is this tool for?",
      "a": "It's built for anyone comparing money scenarios before committing — budgeting a payment, sanity-checking a quote, or seeing what a change in rate or term actually costs."
    }
  ],
  "related": [
    "https://www.revenuelab.fyi/toolbox/budget-50-30-20",
    "https://www.revenuelab.fyi/toolbox/emergency-fund"
  ],
  "license": "CC-BY-4.0",
  "citation": "RevenueLab — Savings Rate to Retirement Calculator (https://www.revenuelab.fyi/toolbox/savings-rate-fi)"
}