Calculate Return on Investment with Simple ROI, Annualized CAGR, dividends, and benchmark comparison vs S&P 500, Nifty 50, FD, and inflation.
A complete Return on Investment calculator that handles three real-world scenarios: simple ROI on initial-vs-final value, time-weighted annualized return (CAGR), and full compound-mode with monthly contributions plus arbitrary dividends or cashflow events. Solves IRR via bisection when cashflows are irregular. Compares your annualized return live against four benchmarks — S&P 500 (~10% CAGR), Nifty 50 (~12%), bank FD (~6%), and inflation (~4%) — so you instantly see whether your investment beat the market or just kept up with rising prices. Supports USD, INR, and AED with native locale formatting.
Simple ROI is the cleanest measure when you have a single buy-and-sell transaction with no cashflows in between: (final − initial) / initial. It tells you how much you made in absolute terms but ignores how long it took. CAGR annualizes that return so a 50% gain over 2 years (~22% CAGR) can be compared apples-to-apples with a 30% gain over 1 year (30% CAGR). IRR is what you need when there are intermediate cashflows — additional contributions, dividends, partial sales — because it accounts for the timing of every cash event. This calculator switches automatically: Simple mode shows ROI, Annualized shows CAGR, and Compound mode with cashflows uses IRR.
An investment that returned 5% during a year of 6% inflation actually lost purchasing power — your dollars bought less at the end than at the start. Real return (nominal return − inflation) is what determines whether you grew wealthier in any meaningful sense. The benchmark chips on this calculator include an inflation reference precisely so you can see whether you cleared the most important hurdle. Beating the index is a bonus; beating inflation is the floor.
The most frequent error is using simple ROI for a multi-year holding — a 100% gain over 7 years sounds great until you realize that's only 10.4% annualized, just barely market average. Other traps: forgetting to subtract fees and taxes, ignoring sequence-of-returns risk (averages mask volatility), confusing money-weighted with time-weighted returns when there are contributions, and benchmarking against last year's hot index instead of the long-term average. This calculator tries to push you toward the right answer by showing CAGR and IRR rather than headline ROI when timing matters.
ROI is the total percentage gain over the entire holding period (final − initial) / initial. CAGR is the annualized equivalent — the steady yearly rate that would produce the same total return when compounded over the same period. CAGR lets you compare investments held for different lengths of time.
When you add cashflows or a monthly contribution, the calculator computes the Internal Rate of Return (IRR) using bisection. Each contribution is treated as a negative cashflow at its date, dividends as positive cashflows, and the final value as the terminal cashflow — IRR is the discount rate that makes their net present value zero.
These are the four reference points most investors actually care about. S&P 500 (~10% CAGR) and Nifty 50 (~12% CAGR) are the long-term equity benchmarks for the US and India. Bank FD (~6%) is the risk-free baseline. Inflation (~4%) tells you whether your real purchasing power grew. If your CAGR is below inflation, you lost money in real terms.
They are long-term historical averages used as conservative reference points. Real one-year returns swing wildly above and below these numbers — for long-horizon planning, the long-term averages are a more honest comparison than any single recent year.
Yes. ROI math is identical across asset classes. Use Simple ROI for one-shot deals (flips, business sales), Annualized for buy-and-hold assets, and Compound mode when you have additional capital injections or rental income / dividend distributions along the way.
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