retirement calculator · planning

what corpus do you actually need to retire?

Most people guess. This one does the math properly — inflation-adjusts your future expenses, sizes the corpus for the years you'll be retired, then tells you what monthly SIP from today gets you there.

● live · updates as you slide inflation-adjusted two-stage returns
about you · today
current age
32
1860
planned retirement age
60
4075
today's monthly expenses
₹60,000
₹10,000₹5,00,000
about retirement
years in retirement
25
10 yrs40 yrs
inflation
6.0%
2%10%
return — before retirement (equity)
12.0%
6%18%
return — after retirement (debt-mix)
7.0%
4%12%
Mumbai's true inflation on housing, school fees, and lifestyle goods runs higher than the official ~5%. Many planners use 6-7%. The pre-retirement return assumes you're heavily in equity (long horizon). Post-retirement is mostly debt + hybrid (lower volatility).
monthly expenses at age 60
₹3.07 L
₹3,07,481 per month, inflation-adjusted
corpus you'll need at retirement
₹7.48 cr
→ monthly SIP from today
₹38,420
assuming 6.0% inflation · 12% pre-ret · 7% post-ret · not guaranteed
years to retirement
28 yrs
total you'd SIP
₹1,29,09,120
or just talk to archita directly.

you've run the numbers. now run them by archita.

Leave an email or a number — either one works — and Archita will follow up with a plain-English read on what these figures mean for you. No spam. No drip campaigns.

the boring math behind it

three honest answers.

how do we get the future expense?

Today's monthly expenses, compounded forward by inflation for the years until retirement. ₹60,000 today at 6% inflation, in 28 years, becomes roughly ₹3.07 lakh per month. That number is what you'll actually need to spend each month at retirement — not today's ₹60k.

Most retirement plans fail because they use today's number. Don't. Use the inflated one.

how do we get the corpus needed?

Present value of a growing annuity, basically. Your corpus needs to fund inflation-rising monthly withdrawals for the entire retirement duration — while still growing at the post-retirement return rate.

We use a real return (post-retirement return minus inflation) to discount the future withdrawals, multiply by 12 months × retirement years, and you get the corpus needed at retirement age. The math is standard "present value of annuity due" with the inflation adjustment baked in.

how do we get the required SIP?

Same reverse-SIP math as the Goal SIP calculator — but the goal is the corpus we just calculated, and the timeline is the years until retirement, and the return rate is the higher pre-retirement (equity) one.

Want help actually picking the funds and setting up the SIP? Talk to Archita. That's literally the conversation she has every day.

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