About
What this is, and why you can trust the numbers
How Much Would I Have If is an independent, education-only calculator that answers one question — “how much would I have if I'd invested in something, starting some year ago?” — across stocks, crypto, indices, and more. No sign-up, no paywall, no advice.
What the site does
The domain name is the search query. Every page answers a version of “how much would I have if I'd put money into X since year Y.” From there you can compare assets head-to-head, see the leaderboard of what grew the most, check what a fixed amount became, or browse every scenario. The Learn section explains the concepts behind the math in plain English.
Where the data comes from
Asset prices are real historical closes pulled from Twelve Data. Inflation adjustments use the U.S. Consumer Price Index (CPIAUCSL) from the Federal Reserve Bank of St. Louis (FRED). For broad indices and some commodities the figures use a liquid, tradeable proxy (for example an S&P 500 ETF rather than the bare index level); because every result is built from price ratios, the absolute price level cancels out and the growth multiple stays faithful. This site is not affiliated with, endorsed by, or sponsored by either data provider.
How every figure is calculated
Nothing here is hand-typed or cherry-picked. Each number — the headline result, the compound annual growth rate, the inflation-adjusted “today's dollars” figure, the best and worst years, the maximum drawdown — is computed from the same shared price series by the same code, every time. The full set of formulas, the assumptions, and the known limitations are written out on the methodology page. If you want to understand a concept first, the Learn cluster covers dollar-cost averaging, CAGR, and nominal vs. real returns.
Editorial standards & corrections
The goal is to be accurate and honest rather than impressive. Results are historical facts derived transparently from public data — there is no forecasting, no “hot tip,” and no incentive to make any asset look better than it was. Where the data has limits (some series are coarser than others, and inflation-adjusted figures use a standard CPI deflation), those tradeoffs are documented on the methodology page rather than hidden.
Spotted a number that looks wrong, or a price that's out of date? Please tell us — flag it on X at @howmuchif. Verified corrections are applied on the next data refresh.
Who makes this
How Much Would I Have If is an independent project — built and maintained by a single developer, not a brokerage, fund, or media company, and not affiliated with any of the assets or data providers it references. It exists because the “what if I'd bought back then” question is a genuinely useful, genuinely human way to build intuition about long-term investing — and because the honest answer should be free and transparent.
Just for curiosity — not advice
Everything on this site is for education and curiosity only. Past performance never predicts the future, markets fall as well as rise, and nothing here is investment, tax, or financial advice. For decisions about your own money, talk to a licensed professional.