Future Value Calculator
This future value calculator shows what a lump sum grows to over time at a given interest rate, using annual compounding. Enter your starting amount, rate and time period to see the result.
The lump sum you're investing today.
The yearly rate this amount earns.
How many years the money grows for.
Future value
$17,908
How to use this future value calculator
- 1Present value: the amount you're starting with today.
- 2Annual interest rate: the yearly rate you expect this amount to earn — check your specific account or investment for its actual rate.
- 3Time period: how many years the money will grow for, untouched.
Understanding your results
Future value is what your lump sum grows to after compounding for the full period. Growth earned isolates the actual gain — useful for seeing how much of the future total came purely from interest or investment returns rather than your original deposit.
The formula
Future value = Present value × (1 + Rate)^YearsThis is the standard compound interest formula: your starting amount is multiplied by one plus the interest rate, raised to the power of the number of years — each year's growth compounds on top of the previous year's total, not just the original amount.
A worked example
$10,000 invested today at a 6% annual rate for 10 years grows to about $17,908 — a gain of roughly $7,908, purely from compounding, without any additional contributions along the way.
Notes for the UK, US and India
This calculator assumes annual compounding and no additional contributions — for a plan involving regular monthly deposits on top of a starting amount, use the DCA, SIP or 401(k) calculators instead, which model an ongoing contribution stream alongside compounding.
Frequently asked questions
Does this account for inflation?+
No — this shows nominal future value. To see purchasing power in today's terms, use the Inflation Calculator alongside this one to adjust the result downward for expected inflation.
What if my investment compounds monthly instead of annually?+
More frequent compounding produces a slightly higher future value at the same nominal rate — this calculator uses annual compounding for simplicity, which is a conservative (slightly lower) estimate compared to monthly compounding.
Can I use this for a savings account instead of investments?+
Yes — the same compound interest math applies to a high-yield savings account or CD; just use that account's actual annual rate.
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