{
  "slug": "how-much-will-college-cost-in-18-years",
  "title": "How Much Will College Cost in 18 Years?",
  "heading": "How Much Will College Cost in 18 Years?",
  "category": "financial",
  "url": "https://www.revenuelab.fyi/toolbox/how-much-will-college-cost-in-18-years",
  "summary": "Today's $25,000/year public college cost grows to about $56,700/year in 18 years at a 5% college inflation rate.",
  "description": "College costs have historically risen faster than general inflation, so projecting future tuition requires compounding today's cost at a college-specific inflation rate rather than the general CPI. This calculator compounds today's annual cost forward to your child's freshman year and totals the 4-year cost at that inflated rate.",
  "formula": "Future Annual Cost = Today's Cost × (1 + College Inflation Rate)^Years. Total 4-Year Cost = sum of 4 successive inflated years.",
  "dateModified": "2026-09-06",
  "run_url": "https://www.revenuelab.fyi/api/public/calc?tool=how-much-will-college-cost-in-18-years",
  "inputs": [
    {
      "id": "todaysCost",
      "label": "Today's annual college cost",
      "kind": "number",
      "hint": null,
      "default": 25000,
      "unit": "$",
      "min": 0,
      "max": null
    },
    {
      "id": "years",
      "label": "Years until college starts",
      "kind": "number",
      "hint": null,
      "default": 18,
      "unit": null,
      "min": 0,
      "max": 18
    },
    {
      "id": "inflationRate",
      "label": "College cost inflation rate",
      "kind": "number",
      "hint": null,
      "default": 5,
      "unit": "%/yr",
      "min": 1,
      "max": 10
    }
  ],
  "outputs": [
    {
      "id": "freshmanYearCost",
      "label": "Freshman-year cost (inflated)",
      "format": "currency",
      "hint": null,
      "primary": true
    },
    {
      "id": "total4Year",
      "label": "Total 4-year cost (inflated)",
      "format": "currency",
      "hint": null,
      "primary": false
    }
  ],
  "worked_example": {
    "inputs": [
      "Today's annual college cost: 25000 $",
      "Years until college starts: 18",
      "College cost inflation rate: 5 %/yr"
    ],
    "outputs": [
      "Freshman-year cost (inflated): $60,165",
      "Total 4-year cost (inflated): $259,321"
    ]
  },
  "how_to": {
    "title": "How to use this",
    "steps": [
      "Enter today's annual college cost ($).",
      "Enter years until college starts.",
      "Enter college cost inflation rate (%/yr).",
      "Read your freshman-year cost (inflated) 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": {
        "todaysCost": 15000,
        "years": 11,
        "inflationRate": 3
      }
    },
    {
      "name": "Typical",
      "description": "Defaults — the most common real-world setup.",
      "values": {
        "todaysCost": 25000,
        "years": 18,
        "inflationRate": 5
      }
    },
    {
      "name": "Ambitious",
      "description": "Higher-end numbers — what if things really pop?",
      "values": {
        "todaysCost": 40000,
        "years": 18,
        "inflationRate": 8
      }
    }
  ],
  "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 much will college cost in 18 years?",
      "a": "Today's $25,000/year public college cost, compounded at 5% college inflation for 18 years, grows to about $60,150 for freshman year alone, with the full 4-year cost (accounting for continued inflation) totaling roughly $260,000."
    },
    {
      "q": "Why use a higher inflation rate for college than general inflation?",
      "a": "College tuition has historically outpaced general CPI inflation for decades, commonly running 4-6% annually versus 2-3% general inflation, though this trend has moderated somewhat in recent years at some institutions."
    },
    {
      "q": "Should I use public or private college costs?",
      "a": "Use whichever matches your realistic expectation — public in-state college can run $12,000-$28,000/year today while private colleges often run $45,000-$65,000+/year, producing very different long-term projections."
    },
    {
      "q": "How does this inform my 529 savings target?",
      "a": "Once you know the projected total cost, work backward using a savings growth calculator to determine the monthly 529 contribution needed to hit that inflated target by your child's freshman year."
    }
  ],
  "related": [
    "https://www.revenuelab.fyi/toolbox/how-much-does-a-baby-cost-first-year",
    "https://www.revenuelab.fyi/toolbox/how-much-life-insurance-do-i-need"
  ],
  "license": "CC-BY-4.0",
  "citation": "RevenueLab — How Much Will College Cost in 18 Years? (https://www.revenuelab.fyi/toolbox/how-much-will-college-cost-in-18-years)"
}