01
Enter your yearly investment
Type how much you put into PPF each year, up to the ₹1.5 lakh limit, and choose whether you deposit it yearly or monthly.
PPF Calculator
Project your PPF maturity and tax-free interest — yearly or monthly deposits.
Updated Reviewed by Sajid Hussain· Editor
Try it with your numbers
Results update in real time as you type — no submit needed.
Your numbers
PPF bills sellers in Indian Rupee (INR), so this calculator works in INR — not your selected US Dollar ($). Every figure below matches your real PPF statement. Localised USD marketplaces are coming soon.
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Last updated
June 11, 2026
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Region-specific
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India Savings Tool
What Is a PPF Calculator?
A PPF calculator projects what your Public Provident Fund grows to at maturity — using your yearly deposit, the interest rate and the tenure — and shows how much of that is tax-free interest.
PPF is a 15-year, government-backed savings scheme. You deposit between ₹500 and ₹1.5 lakh a financial year; the balance earns a government-set rate (7.1% for FY 2025-26), compounded yearly. The calculator turns your plan into a maturity figure and splits it into what you put in and the interest you earned.
When you deposit within the year matters. Interest accrues on the lowest balance between the 5th and the end of each month, so a lump sum paid by 5 April earns a full year's interest while monthly deposits earn a little less. This calculator models both, so you can see the difference instead of guessing.
Only ₹1.5 lakh a year earns interest. Anything above the ₹1.5 lakh limit earns nothing and gives no tax benefit. The calculator computes on the eligible amount and warns you if you enter more.
PPF is one of India's most tax-efficient options (EEE). The deposit is deductible under Section 80C, the interest is tax-free, and the maturity is tax-free. The calculator also shows what your balance becomes if you extend the account in a 5-year block.
Quick facts
- Scheme
- Government-backed, 15-year
- Rate (FY 2025-26)
- 7.1% p.a., set quarterly
- Yearly limit
- ₹500 to ₹1.5 lakh
- Tax status
- EEE — fully tax-free
- Models
- Yearly vs monthly deposits
- Free to use
- No sign-up needed
How It Works
Calculate Your PPF Maturity in Three Steps
02
Set the rate and tenure
The rate defaults to the current 7.1%; adjust it if you want. Set the tenure to 15 years or slide higher to model an extension.
03
Read your maturity and interest
See the maturity value, the total you invested, and the tax-free interest earned — plus what an extra 5-year block would add.
Steps to use the PPF Calculator: Enter your yearly investment, Set the rate and tenure, Read your maturity and interest.
The Formula
How PPF Maturity Is Worked Out
01
Yearly deposit (annuity-due)
M = P × [((1 + i)^n − 1) / i] × (1 + i)
P is your yearly deposit, i is the annual rate (e.g. 0.071) and n is the tenure in years. The (1 + i) factor reflects depositing by 5 April so each year's money earns a full year of interest.
Example: P = ₹1,50,000, i = 7.1%, n = 15 → maturity ≈ ₹40.68 lakh
02
Monthly deposit
Each year: Balance = Balance × (1 + i) + P × (1 + i × 6.5/12)
With monthly deposits, the year's money earns interest for about 6.5 months on average instead of 12. The calculator carries the balance forward year by year using this rule.
Example: ₹1,50,000/year split monthly, 7.1%, 15 years ≈ ₹39.4 lakh
03
Total interest
Interest = Maturity − Total invested
The tax-free interest is simply the maturity value minus everything you deposited over the tenure.
Example: ₹40.68 lakh − ₹22.5 lakh = ₹18.18 lakh interest
Worked Example
Step-by-Step Walkthrough (₹1.5 lakh a year for 15 years)
Currency note: the example below uses a benchmark scenario priced in Indian Rupee (INR). Values are converted to US Dollar (USD) at the latest exchange rate so you can compare against your own numbers.
Scenario
A saver depositing $150,000.00 a year into PPF at 7.1% for 15 years.
1
Step 1 · Total deposited
Over 15 years, depositing $150,000.00 a year adds up to the amount you put in.
Invested = $2,250,000.00
2
Step 2 · Maturity value
Compounded yearly at 7.1% with each deposit made early in the year, the balance grows well past what you put in.
Maturity = $4,068,209.00
3
Step 3 · Tax-free interest & extension
The gap is pure tax-free interest. Extend one 5-year block and keep contributing, and it grows further.
Interest $1,818,209.00 · +5 yrs → $6,658,288.00
The takeaway
A full ₹1.5 lakh a year turns ₹22.5 lakh of deposits into roughly $4,068,209.00 in 15 years — about $1,818,209.00 of it tax-free interest. Because PPF compounds, the single biggest lever is time: extending one 5-year block pushes the corpus past $6,658,288.00.
Longer is better
PPF Maturity by Tenure (7.1% rate)
| Metric | Poor | Average | Good | Excellent |
|---|---|---|---|---|
₹50,000/year Calcrux projection · 7.1% | 15 yrs → ₹13.6L | 20 yrs → ₹22.2L | 25 yrs → ₹34.4L | 30 yrs → ₹51.5L |
₹1,00,000/year Calcrux projection · 7.1% | 15 yrs → ₹27.1L | 20 yrs → ₹44.4L | 25 yrs → ₹68.7L | 30 yrs → ₹1.03Cr |
₹1,50,000/year Calcrux projection · 7.1% | 15 yrs → ₹40.7L | 20 yrs → ₹66.6L | 25 yrs → ₹1.03Cr | 30 yrs → ₹1.55Cr |
Comparison
Calcrux vs Groww vs ClearTax
| Feature | Calcrux (Free) | Groww | ClearTax |
|---|---|---|---|
| Maturity & total interest | |||
| Accurate monthly vs yearly accrual | |||
| Extension (+5 year block) projection | |||
| Flags deposits above ₹1.5 lakh | |||
| Maturity in today's money (inflation) | |||
| Free, no sign-up required |
Common Mistakes
PPF Mistakes to Avoid
Depositing late in the year
Why it matters
Interest accrues on the balance from the 5th of the month. Depositing in March instead of April means your money misses almost a full year of interest, every year.
Fix
Deposit by 5 April to earn the full year. The calculator's yearly option assumes this; switch to monthly to see the cost of spreading it out.
Putting in more than ₹1.5 lakh
Why it matters
Any amount above ₹1.5 lakh a year earns no interest and gets no 80C benefit — it just sits idle in the account.
Fix
Keep deposits at or below ₹1.5 lakh. The calculator flags any excess and computes only on the eligible amount.
Closing PPF at 15 years by default
Why it matters
Many people withdraw at maturity out of habit. But an extended PPF keeps earning tax-free interest on a now-large balance — often the best low-risk return available.
Fix
Use the tenure slider to compare 15, 20 and 25 years and see how much an extension adds before you decide.
Treating PPF as a short-term plan
Why it matters
PPF has a 15-year lock-in; the full amount can't be withdrawn early. People who need the money sooner are caught out.
Fix
Use PPF for long-term, goal-based saving. For shorter horizons, the calculator's sister tools (SIP, FD) fit better.
Ignoring inflation
Why it matters
A maturity of ₹40 lakh in 15 years buys far less than ₹40 lakh today. Planning on the headline figure overstates your real wealth.
Fix
The calculator shows the maturity in today's money so you can judge its real purchasing power.
Pro Tips
Get More From Your PPF
Deposit by 5 April
Pay the year's amount at the start of the financial year so it earns a full 12 months of interest, not a partial year.
Aim for the ₹1.5 lakh limit
The full ₹1.5 lakh both maximises tax-free growth and uses your entire Section 80C deduction in one product.
Extend, don't close
At 15 years, extend in 5-year blocks. Interest on a large balance compounds hard, often beating fresh low-risk options.
Use it for safety
PPF is government-backed and tax-free. Treat it as the secure core of your portfolio, alongside market-linked tools like NPS.
Open early for a child
A PPF in a minor's name started early gives decades of compounding — the tenure slider shows just how much that is worth.
Who Uses This
Who Uses This PPF Calculator
The PPF Calculator works across every stage of the workflow.
Salaried savers using 80C
Someone wanting a safe, tax-free home for their ₹1.5 lakh 80C limit checks what 15 years of PPF builds.
Long-term goal planners
A parent saving for a child's education compares 15, 20 and 25-year tenures to hit a target corpus.
People comparing PPF with NPS or FD
An investor weighs PPF's fixed 7.1% tax-free return against market-linked NPS before splitting their savings.
Account holders near 15 years
A subscriber approaching maturity models extending one 5-year block to see how much extra tax-free interest it earns.
Monthly investors
Someone who can only save monthly checks how much less that earns than a single April deposit.
Glossary
Key PPF Terms
Every important term you'll encounter in this calculator and the broader topic.
- PPF (Public Provident Fund)
- A government-backed, 15-year savings scheme with a fixed, tax-free return. Deposits qualify for Section 80C and the maturity is tax-free.
- Maturity Value
- The total balance in your PPF account at the end of the tenure — your deposits plus all the compounded interest.
- EEE (Exempt-Exempt-Exempt)
- A tax status where the deposit, the interest, and the maturity are all tax-free. PPF is one of the few EEE products in India.
- Section 80C
- The income-tax section that lets you deduct up to ₹1.5 lakh of eligible investments, including PPF, from taxable income (old regime).
- Lock-in Period
- The 15 years during which a PPF account cannot be fully closed. Partial withdrawals are allowed from the 7th year.
- Extension Block
- After 15 years, PPF can be continued in 5-year blocks, with or without fresh deposits, any number of times.
Help & answers
Frequently asked questions
Everything you need to know about how the PPF Calculator works.
01What is a PPF calculator?
A PPF calculator projects what your Public Provident Fund grows to at maturity. You enter your yearly deposit, the interest rate and tenure; it shows the maturity value, the total you invested, and the tax-free interest you earn over 15 years or more.
02How is PPF interest calculated?
PPF interest is compounded yearly but accrues on the lowest balance between the 5th and the last day of each month. A deposit made by 5 April earns a full year of interest; depositing monthly earns slightly less. For FY 2025-26 the rate is 7.1%.
03What is the PPF interest rate for 2025-26?
The PPF interest rate is 7.1% per annum for FY 2025-26, held at that level through the January–March 2026 quarter. The government reviews it every quarter, so it can change — this calculator lets you set any rate to model your own assumption.
04What is the maturity of ₹1.5 lakh per year in PPF?
Investing ₹1.5 lakh a year at 7.1% for 15 years grows to about ₹40.68 lakh — ₹22.5 lakh invested plus roughly ₹18.18 lakh of tax-free interest. Extending one 5-year block (still contributing) takes it past ₹66 lakh.
05What is the maximum I can invest in PPF?
₹1.5 lakh per financial year. Any amount above ₹1.5 lakh earns no interest and gets no Section 80C deduction, so this calculator computes only on the first ₹1.5 lakh and flags any excess you enter.
06Is PPF tax-free?
Yes — PPF has EEE (Exempt-Exempt-Exempt) status. Your deposit qualifies for a deduction up to ₹1.5 lakh under Section 80C, the interest is tax-free, and the maturity amount is fully tax-free. It is one of the most tax-efficient options in India.
07What is the PPF tenure and can I extend it?
PPF runs for a minimum of 15 years. After that you can extend it in blocks of 5 years, with or without further deposits, any number of times. Extending with contributions keeps compounding the corpus, as this calculator shows.
08Should I invest in PPF monthly or yearly?
A single lump sum by 5 April earns the most, because it gets a full year of interest. Monthly deposits earn slightly less — about ₹1.2 lakh less on a ₹1.5 lakh/year, 15-year plan. If you can, invest the year's amount early; otherwise monthly is still fine.
09PPF vs NPS — which is better?
PPF gives a fixed, fully tax-free return (7.1%) with no annuity and full access at maturity; NPS is market-linked (9–12%) but locks part of the corpus into a pension. PPF suits safety-first savers; NPS suits those wanting growth and the extra ₹50,000 tax break.
10Can I withdraw from PPF before 15 years?
Not fully. PPF has a 15-year lock-in, but partial withdrawals are allowed from the 7th year, and loans against the balance from the 3rd to 6th year. Only at maturity can you withdraw the whole amount tax-free.
11Can I extend PPF without making fresh deposits?
Yes. After 15 years you can extend in 5-year blocks with or without deposits. Without deposits, the corpus keeps earning tax-free interest and you can withdraw any amount once a year. With deposits, you can withdraw up to 60% of the opening balance over the block.
12How long does it take to make ₹1 crore in PPF?
Investing the full ₹1.5 lakh a year at 7.1%, a PPF crosses ₹1 crore in about 25 years — roughly two 5-year extensions past the 15-year term. Smaller yearly amounts take longer; the calculator shows the exact year your corpus reaches ₹1 crore.
13Can I take a loan against my PPF?
Yes, between the 3rd and 6th year. You can borrow up to 25% of the balance from two years earlier, repayable within 36 months. A loan keeps your corpus compounding — often better than a withdrawal before partial withdrawals open up in year 7.
14Is this PPF calculator free and accurate?
Yes — it is free, needs no sign-up, and runs in your browser. It uses the standard PPF compounding maths and the 7.1% FY 2025-26 rate, and models yearly versus monthly deposits accurately. Future rates are set quarterly by the government, so treat long-term figures as an estimate.
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India Business Operations
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retirement savings
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Topics
ppf calculatorpublic provident fund calculatorppf calculator 2025ppf interest calculatorppf maturity calculatorppf return calculatorppf account calculatorppf 15 years calculatorhow to calculate ppfppf monthly investment calculatorppf 1.5 lakh per yearppf tax benefit
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