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KVP Calculator

Investment

Find out exactly how long Kisan Vikas Patra takes to double your money at the current rate — and see the year-by-year growth to maturity.

Free · No sign-up · Private5 min readUpdated 27 July 2026

In short: Kisan Vikas Patra (KVP) is a government-backed Post Office certificate that doubles your investment at a fixed rate of 7.5% p.a. compounded annually — currently in about 115 months (roughly 9 years 7 months) — but it offers no Section 80C deduction and the interest earned is fully taxable.

Results

Invested amount

₹1,00,000

Years to double

10

About 115 months

Maturity value (2×)

₹2,00,000

AI insights

  • You put in ₹1,00,000 and it grows to ₹2,00,000 — about 2.0× your money, with ₹2,00,000 earned on top.
  • Roughly 100% of the final value is growth, not your own contributions — the compounding is doing the heavy lifting.
  • Staying invested longer, or stepping the amount up each year, tilts this even further in your favour.

KVP value growth

How your investment compounds each year until it doubles.

Year-wise growth

Year-wise growth
YearInterest earnedValue
1₹7,500₹1,07,500
2₹15,562₹1,15,562
3₹24,230₹1,24,230
4₹33,547₹1,33,547
5₹43,563₹1,43,563
6₹54,330₹1,54,330
7₹65,905₹1,65,905
8₹78,348₹1,78,348
9₹91,724₹1,91,724
10₹1,06,103₹2,06,103

Balance compounded annually until it reaches double the investment.

How the KVP Calculator works

Formula

t = ln(2) ÷ ln(1 + r)
t
Time (in years) for the money to double
r
Annual interest rate (decimal)
ln
Natural logarithm
A
Maturity value = 2 × principal

Step-by-step calculation

Worked with the default values.

  1. 1

    Annual rate (r)

    7.5% p.a.

    = 7.5%

  2. 2

    Time to double (t)

    ln(2) ÷ ln(1 + r)

    = 9.58 yrs (≈ 115 months)

  3. 3

    Maturity value

    A = P × 2

    = ₹2,00,000

How it works

  • You invest a lump sum and the amount compounds annually at a fixed government-set rate.
  • The scheme is designed so the money doubles over a defined period — currently about 115 months at 7.5% p.a.
  • At maturity you receive exactly twice your investment; the return is assured and unaffected by markets.

Examples

₹1,00,000 at 7.5% p.a.

Doubles to ₹2,00,000 in about 9 years 7 months (≈ 115 months).

₹5,00,000 at 7.5% p.a.

Grows to ₹10,00,000 over the same roughly 115-month doubling period.