NPS Calculator
Estimate NPS corpus at age 60, annuity income, and lump sum from monthly contributions.
Written by Anil Gautam · Updated
How does the NPS calculator project your corpus at 60?
The tool assumes the same contribution goes in at the start of every month until you turn 60 and grows at your expected return, divided by 12 and compounded monthly. Its corpus formula is the one used for SIPs: FV = M × ((1 + r)^n − 1) ÷ r × (1 + r), with M the monthly contribution, r the monthly rate and n the months left. A 10% setting therefore works out to about 10.47% a year once monthly compounding is counted.
With the defaults, ₹10,000 a month from age 30 at 10%, you invest ₹36,00,000 over 30 years and the projected corpus is ₹2,27,93,253. The 40% annuity setting puts ₹91,17,301 into the annuity corpus and leaves a lump sum of ₹1,36,75,952. Your pension estimate is annuity corpus × annuity rate ÷ 12, which at 6% gives ₹45,587 a month.
How much do starting age and expected return change the result?
Start the same ₹10,000 a month at 40 and the corpus at 60 is ₹76,56,969. You invest two-thirds as much, ₹24 lakh, and end with about a third of the age-30 figure. The return assumption moves the result almost as much: over 30 years, 8% gives ₹1,50,02,952 and 12% gives ₹3,52,99,138.
Raising the annuity share trades lump sum for pension: going from 40% to 60% lifts the pension estimate from ₹45,587 to ₹68,380 a month and cuts the lump sum to ₹91,17,301. Every figure is in future rupees: if prices rise 6% a year, ₹45,587 a month in 30 years buys roughly what ₹7,937 buys today.
What does the NPS calculator leave out?
The monthly amount stays flat until 60, so a contribution that rises with your salary will end above the projection. If your employer also contributes, add that amount to the monthly figure to include it. Exit age is fixed at 60, and the annuity slider cannot go below 40%, the minimum share this calculator assumes. PFRDA sets the exit rules and has changed them before, so confirm the current minimum annuity share for your account before you rely on the split.
Real annuity quotes depend on the insurer, your age when you buy and the option you choose, such as whether the purchase price is returned to your nominee, so treat the pension line as a rough guide. For the corpus alone, the SIP Calculator gives the same figure for the same monthly amount, return and years.