Enter a starting amount, an expected annual return, how many years you will hold, and any monthly contribution. The calculator compounds it monthly and shows the final value versus what you actually put in.
Growth · Free Calculator
Compound Growth Calculator
See what a starting balance plus monthly contributions becomes at a given annual return.
Final value —
Total growth —
Total you contributed —
Heads up: Assumes a constant return compounded monthly. Real markets are volatile. Not investment advice.
Frequently asked questions
What return should I assume?
The S&P 500 has returned roughly 10% annually before inflation over the long run, but no return is guaranteed. Model a conservative and an optimistic case, not a single number.
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