What an investment in any US stock or ETF in any past month would be worth today, vs the S&P 500.
ticker lookup Real prices · dividends reinvested · monthly additions
Free Investing Calculators for Websites
Free investing calculators for stock returns, portfolio backtests, dividends, valuation, bonds, compound growth and inflation. Use them here, or add any of them to your own website or blog with a copy-and-paste embed code: no sign-up, no API key, no cost.
How a starting amount and monthly savings grow over time, after fees, tax drag and inflation.
Chart · year-by-year table · fees and inflation
What an amount from any year or month since 1913 is worth in another, from official US CPI data.
Since 1913 · average rate · inflation by year
Total return, price return and the part added by dividends for any stock or ETF between two months.
ticker lookup Annual rates · yearly returns
The return of any US stock or ETF after inflation between two months, in total and per year.
ticker lookup Before vs after inflation · real return by year
How a mix of up to 10 stocks and ETFs would have done: return, volatility and worst drawdown.
ticker lookup Rebalancing · yearly returns · vs SPY
Your annual return from start and end values, or from dated deposits and withdrawals (XIRR).
ticker lookup CAGR · IRR / XIRR · vs inflation and a benchmark
Profit or loss, return, break-even price and tax on a stock trade, including commissions.
ticker lookup Annual return · short vs long-term tax
Yearly and monthly dividend income from your stocks and ETFs, with a month-by-month calendar.
ticker lookup Portfolio yield · 5-year growth · payment months
Future dividend income, yield on cost and how much reinvesting dividends adds.
ticker lookup DRIP vs cash · yield on cost · dividend tax
Fair value of a dividend stock with the Gordon growth or two-stage model, and the growth priced in.
ticker lookup Sensitivity table · implied growth
Benjamin Graham’s fair value from earnings and book value, with the margin of safety and his tests.
ticker lookup Growth formula · P/E and P/B tests
Your new average cost after buying more shares, or the shares needed to reach a target average.
ticker lookup Break-even rise · target average · price lookup
Yield to maturity, current yield, yield to call and duration from a bond’s price, coupon and maturity.
Price at other yields · duration
Investing all at once versus spreading it out, in steady, crash and volatile markets.
4 market paths · break-even return
How long money takes to double, triple or quadruple, with the exact figure alongside.
Rules of 72, 114 and 144 · inflation halving
How far your portfolio has drifted from its target mix and the trades that bring it back.
Drift bands · buy and sell amounts · tax estimate
What things will cost in the future and how much of its value your money loses.
Future cost · purchasing power · real return
Whether your pay kept up with prices: an old salary in today’s money and your real raise.
Real change · raise needed · since 1913
How cash in a money market fund or earning nothing did against inflation, month by month since 1954.
ticker lookup Real Fed funds rates · vs a stock or ETF
The federal funds rate since 1954, today’s target range and every Fed hike and cut since 1982.
Chart · hiking and cutting cycles
The month your savings reach $1 million, and what $1 million will be worth by then.
Date to target · levers that change it
Add a calculator to your website
- Copy and paste: each calculator page has an embed code generator. Pick the theme, currency and starting values, copy the code and paste it into your page.
- Works almost anywhere: the calculator runs in an iframe, so it works on WordPress, Blogger, Wix, Squarespace, Webflow, Ghost and plain HTML.
- Fits your page: article or sidebar width, light or dark theme, and an optional auto-height script so there is no scroll bar or empty space.
- Private and fast: everything is calculated in the visitor’s browser. No cookies, no tracking and no ads.
Frequently asked questions
Are the calculators free to use on my website?
Yes. Every calculator is free for personal and commercial websites. Copy the embed code from the calculator's page and keep the credit line with the two links under the calculator.
Where does the stock data come from?
Calculators with a ticker lookup use the same end-of-day data as the Quotelinks stock and ETF pages: split-adjusted closing prices, dividends and key ratios for US-listed stocks and ETFs.
Which websites can embed the calculators?
Any site that accepts HTML: WordPress, Blogger, Wix, Squarespace, Webflow, Ghost and plain HTML pages. The calculator runs in an iframe, so it doesn't conflict with your site's styles or scripts.
Can I change the look of an embedded calculator?
Yes. Choose article or sidebar width, a light, dark or automatic theme, the currency, and the starting values before you copy the code.
Do the calculators collect visitor data?
No. All calculations run in the visitor's browser. The calculators set no cookies and show no ads.
Also free: stock widgets
Show live end-of-day stock quotes, a ticker tape or the day’s market movers on your site with the free stock market widgets.