TallyKnot

SIP Calculator

See how regular monthly investing could grow over time. Enter a monthly amount, how long you invest and an expected yearly return, and the calculator shows how much you put in, the estimated growth and the projected value — year by year, with a chart. Returns are an assumption, not a promise.

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Your plan
%
An assumption about the long-term average, not a guarantee.
Projected value-
Amount invested-
Estimated growth-

Invested vs growth, year by year

  • Invested
  • Growth

Year by year

Why regular investing adds up

Investing a steady amount every month does two things. It builds a habit, and it lets each contribution grow for longer. In a long plan, the growth can end up larger than everything you put in.

Example. 1,000 a month for 12 months at a 0% return is simply 12,000 invested with no growth. Raise the expected return and the later years do most of the work, because the early money has had years to compound.

How the projection is built

The yearly return you enter is turned into an effective monthly rate, and each monthly amount grows at that rate until the end. A starting lump sum, if you add one, grows for the whole period. This is a projection of an average return — the real path is never a straight line.

Keep expectations realistic

  • Pick a return you can defend over the long run, not the best year you have seen.
  • Remember fees and taxes reduce the real result.
  • Inflation means the future value buys less than the same number today.
  • To see a fixed lump sum grow instead, use the Compound Interest Calculator.

Frequently asked questions

What is a SIP?

A Systematic Investment Plan means investing a fixed amount at regular intervals — usually every month — into a fund or portfolio, instead of one lump sum. It spreads your buying over time and builds the habit of investing.

Is the projected value guaranteed?

No. Markets go up and down, so the return you enter is only an assumption about a long-term average. The real result could be higher or lower. Use the projection to compare choices, not as a promise.

How is the growth worked out?

Each monthly amount is assumed to grow at an effective monthly rate taken from the yearly return. Contributions made earlier have more time to grow, so most of the final value in a long plan is growth, not the money you put in.

What does contribution timing change?

If you invest at the start of each month, each amount has one extra month to grow compared with investing at the end. Over long periods that makes a small positive difference.

Does this include fees, tax or inflation?

No. The projection is before fund fees, taxes and inflation. Those reduce the real outcome, so treat the figure as a gross estimate.

TallyKnot Cashbook

Track your expenses every day, for free

A calculator gives you one answer. A cashbook shows you the whole picture: write down cash in and cash out, see where the money goes in charts and on a calendar, and share a ledger with your family, team or friends.

  • Use it right in your browser, no sign-up
  • With a free account: shared ledgers in sync on Android and the web
  • Charts, calendar view and categories