{
    "name": "PPF Calculator",
    "url": "https://calculators.geekmidst.com/calculators/ppf-maturity-calculator",
    "markdown": "https://calculators.geekmidst.com/calculators/ppf-maturity-calculator.md",
    "category": "India tax & investing",
    "description": "Estimate your PPF maturity value from the yearly deposit and interest rate over 15 years or with 5-year extensions, with total deposits and interest.",
    "summary": "The Public Provident Fund is a 15-year government savings scheme with interest credited every financial year. Enter your yearly deposit and the current rate to see the maturity value.",
    "also_called": [
        "Public Provident Fund calculator"
    ],
    "applies_to": "India",
    "last_updated": "2026-10-29",
    "computation": "Results are computed in the visitor’s browser on the HTML page. This API describes the calculator; it does not compute results.",
    "inputs": [
        {
            "name": "deposit",
            "label": "Yearly deposit",
            "type": "number",
            "default": "150000"
        },
        {
            "name": "rate",
            "label": "Interest rate (per year)",
            "type": "number",
            "default": "7.1",
            "unit": "%"
        },
        {
            "name": "years",
            "label": "Account period",
            "type": "select",
            "default": "15",
            "options": {
                "15": "15 years (maturity)",
                "20": "20 years (one 5-year extension)",
                "25": "25 years",
                "30": "30 years",
                "35": "35 years",
                "40": "40 years"
            }
        },
        {
            "name": "timing",
            "label": "Deposit each year",
            "type": "segmented",
            "default": "start",
            "options": {
                "start": "By 5 April",
                "end": "At year end"
            }
        },
        {
            "name": "currency",
            "label": "Currency",
            "type": "hidden",
            "default": "INR"
        }
    ],
    "outputs": [
        {
            "key": "maturity",
            "label": "Maturity value",
            "format": "currency"
        },
        {
            "key": "invested",
            "label": "Total deposits",
            "format": "currency"
        },
        {
            "key": "interest",
            "label": "Total interest",
            "format": "currency"
        }
    ],
    "formula": {
        "text": "Deposit by 5 April: Balance = (Balance + D) × (1 + i) each year, so FV = D × [(1 + i)ⁿ − 1] ÷ i × (1 + i). Deposit at year end: FV = D × [(1 + i)ⁿ − 1] ÷ i",
        "variables": {
            "D": "yearly deposit",
            "i": "interest rate ÷ 100",
            "n": "number of years"
        }
    },
    "worked_example": {
        "inputs": {
            "deposit": "150000",
            "rate": "7.1",
            "years": "15",
            "timing": "start",
            "currency": "INR"
        },
        "steps": [
            "1.071¹⁵ = 2.79796, so [(1.071¹⁵ − 1) ÷ 0.071] × 1.071 = 27.1214.",
            "Maturity = 1,50,000 × 27.1214 = ₹40,68,209.",
            "Deposits = 15 × 1,50,000 = ₹22,50,000, so interest = ₹18,18,209."
        ],
        "result": "Depositing the maximum ₹1.5 lakh every year by 5 April at 7.1% gives about ₹40.68 lakh after 15 years."
    },
    "interpretation": "Depositing by 5 April each year earns interest for the whole year; a deposit at the end of the year earns nothing that year. PPF interest is set by the government each quarter, so the real figure will differ if the rate changes.",
    "assumptions": [
        "Deposit limits of ₹500 to ₹1,50,000 per financial year, maturity after 15 complete financial years and 5-year extensions with deposits, as stated by the National Savings Institute (checked 29 October 2026).",
        "One deposit a year, and the rate you enter applies for the whole period.",
        "Interest is credited at the end of each financial year and compounds yearly."
    ],
    "limitations": [
        "Interest is actually worked out monthly on the lowest balance between the 5th and the end of the month; deposits after the 5th earn less than shown.",
        "Loans and partial withdrawals are not modelled."
    ],
    "rules": null,
    "faqs": [
        {
            "question": "What is the PPF interest rate?",
            "answer": "The government sets it every quarter. Enter the rate in force; the 7.1% default is only an example."
        },
        {
            "question": "Can I continue PPF after 15 years?",
            "answer": "Yes. The account can be extended in blocks of 5 years with further deposits, or kept without deposits, earning the prevailing rate."
        }
    ],
    "sources": [
        {
            "title": "National Savings Institute — Public Provident Fund Account",
            "url": "https://www.nsiindia.gov.in/InternalPage.aspx?Id_Pk=55"
        }
    ],
    "related": [
        {
            "name": "Sukanya Samriddhi Calculator",
            "url": "https://calculators.geekmidst.com/calculators/sukanya-samriddhi-maturity-calculator"
        },
        {
            "name": "EPF Calculator",
            "url": "https://calculators.geekmidst.com/calculators/epf-balance-calculator"
        },
        {
            "name": "RD Calculator",
            "url": "https://calculators.geekmidst.com/calculators/recurring-deposit-maturity-calculator"
        },
        {
            "name": "Compound Interest Calculator",
            "url": "https://calculators.geekmidst.com/calculators/compound-interest-calculator"
        }
    ],
    "disclaimer": "Returns are illustrations at a constant rate, not predictions or guarantees. Investments can lose value. This is not investment advice.",
    "publisher": "GM¹X CalcVerse"
}