Investment Return Calculator (ROI)

Calculate investment return (ROI) free online from initial and final value. Get total return percentage and annualized return, accounting for the holding period.

Initial Investment

Final Value

Holding Period (years)

Browser only.

How to Use This Tool

Enter initial and final valueUse your actual investment figures

Enter the holding periodHow long you held the investment in years

See total and annualized returnBoth figures calculated instantly

Why Annualizing Matters for Honest Comparison

A 60% total return sounds impressive until you learn it took 8 years to achieve -- that's actually a fairly modest annualized return. This calculator computes both total return (the simple percentage gain) and annualized return (the equivalent yearly rate), since comparing investments fairly requires putting them on the same time basis.

The Annualization Formula

Annualized Return = (Final/Initial)^(1/years) - 1, expressed as a percentage. This formula correctly accounts for the compounding effect over the holding period, rather than simply dividing total return by years, which would understate the actual compound annual growth rate.

What This Calculation Cannot Tell You

This works purely from the numbers you provide -- it cannot predict future returns, account for risk taken, or factor in dividends and distributions unless you've already included them in your final value figure. Use it to understand historical performance you have real data for, not as a forecasting tool.

Frequently Asked Questions

Total return is the simple percentage gain over the entire holding period. Annualized return converts that into an equivalent yearly rate, which is essential for fairly comparing investments held for different lengths of time -- a 50% gain over 5 years is very different from a 50% gain over 1 year.

Without annualizing, a longer-held investment with a higher total return percentage might actually have performed worse per year than a shorter-held investment with a lower total percentage. Annualized return puts both on the same yearly basis for fair comparison.

Only if you include them in your 'final value' input -- this calculator works from the values you provide, not from any external data source. For investments with distributions, add the cumulative distributions to your final value to get a more complete return picture.

It means the final value was lower than the initial value -- a loss. The calculation works the same way regardless of direction, showing the actual percentage change whether positive or negative.

It's useful for understanding historical performance you already have data for. For comparing future expected returns, this tool can't predict performance -- it only calculates the math for returns you specify or have already realized.