Annuity Calculator

Calculate the periodic payout or pension amount generated from an initial lump sum annuity purchase.

Inputs

Initial Investment (₹)

1,00010,00,00,000

Interest Rate (% p.a.)

120

Tenure (Years)

140

Annuity Type

Calculation Results

Monthly Payout Amount

₹11,102

Total Payout Received

₹13,32,246

Total Interest Earned

₹3,32,246

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Formula & Mathematical Explanation

\displaystyle PMT_{ord} = \frac{PV \times i}{1 - (1 + i)^{-n}},\ PMT_{due} = \frac{PMT_{ord}}{1 + i}

For an Ordinary Annuity, payments are made at the end of each period. For an Annuity Due, payments are made at the beginning of each period, which reduces the required installment to discharge the same present value.