March 27, 20264 min read

Future Value Calculator — What Will Your Money Be Worth?

Calculate the future value of a lump sum or regular investments. See how compounding, time, and interest rate grow your money over 5, 10, 20, or 30 years.

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"If I invest ₹5 lakh today at 10%, what will it be worth in 20 years?" Future value is the answer — and the numbers are often surprisingly large, which is exactly why starting early matters so much.

The CalcHub Future Value Calculator computes FV for both lump sums and regular contributions.

Future Value Formula

Lump Sum

FV = PV × (1 + r)ⁿ

With Regular Contributions

FV = PV × (1 + r)ⁿ + PMT × [((1 + r)ⁿ − 1) / r]

Where: PV = present value (initial investment), PMT = periodic contribution, r = rate per period, n = number of periods.

Lump Sum Growth Table

What does ₹1,00,000 grow to?
YearsAt 6%At 8%At 10%At 12%At 15%
1₹1,06,000₹1,08,000₹1,10,000₹1,12,000₹1,15,000
3₹1,19,100₹1,25,970₹1,33,100₹1,40,490₹1,52,090
5₹1,33,820₹1,46,930₹1,61,050₹1,76,230₹2,01,140
10₹1,79,080₹2,15,890₹2,59,370₹3,10,580₹4,04,560
15₹2,39,660₹3,17,220₹4,17,720₹5,47,360₹8,13,710
20₹3,20,710₹4,66,100₹6,72,750₹9,64,630₹16,36,650
25₹4,29,190₹6,84,850₹10,83,470₹17,00,010₹32,91,900
30₹5,74,350₹10,06,270₹17,44,940₹29,95,990₹66,21,180
At 12% for 30 years, ₹1 lakh becomes ₹30 lakh — 30× your money through compounding alone.

Lump Sum + Monthly SIP Growth

₹5,00,000 lump sum + ₹10,000/month at 12%:
YearsLump Sum AloneSIP AloneCombined
5₹8,81,170₹8,16,700₹16,97,870
10₹15,52,920₹23,23,390₹38,76,310
15₹27,36,030₹50,45,760₹77,81,790
20₹48,23,150₹98,92,600₹1,47,15,750
25₹85,00,030₹1,87,88,500₹2,72,88,530
Combining a lump sum with regular SIP creates exponential wealth — the lump sum compounds from day one while SIP adds fresh capital monthly.

The Power of Starting Early

₹10,000/month SIP at 12%, starting at different ages (retiring at 55):
Start AgeYears InvestingTotal InvestedFuture Value
2530 years₹36,00,000₹3,52,99,000
3025 years₹30,00,000₹1,87,88,000
3520 years₹24,00,000₹98,93,000
4015 years₹18,00,000₹50,46,000
4510 years₹12,00,000₹23,23,000
Starting at 25 vs 35 — investing just ₹12 lakh more — gives you ₹2.54 crore more. Time is the most powerful variable in the FV equation.

How to Use the Calculator

  1. Open the CalcHub Future Value Calculator
  2. Enter initial investment (lump sum, ₹)
  3. Enter regular contribution (monthly SIP, ₹)
  4. Enter annual return rate (%)
  5. Enter time period (years)
  6. See: future value, total invested, wealth gained, and year-by-year growth

Rule of 72 — Quick Doubling Estimate

Years to double ≈ 72 / Interest rate
RateDoubles In
6%12 years
8%9 years
10%7.2 years
12%6 years
15%4.8 years
At 12%, money doubles every 6 years. In 30 years, it doubles 5 times: 2⁵ = 32× your investment.

What return rate should I assume?

Conservative: 8% (balanced portfolio). Moderate: 10–12% (equity mutual funds, long-term historical average in India). Aggressive: 14–15% (high-growth equity). For planning, use 10% — optimistic enough to motivate, conservative enough to not disappoint.

Does future value account for inflation?

The standard formula doesn't. To find real (inflation-adjusted) future value, subtract inflation from your return rate. If nominal return is 12% and inflation is 6%, use 6% to see purchasing power growth. ₹1 lakh at 6% real return for 20 years = ₹3.21 lakh in today's purchasing power.

Can future value be negative?

No — unless you're modeling losses (negative return rate). FV with a positive rate always grows. With a 0% rate, FV = PV (money doesn't grow but doesn't shrink). With negative rates (like real returns below inflation), FV in purchasing power terms can shrink.


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