Tools

Calculators we built ourselves. Every one runs in your browser, works on a phone, and needs no account. Your numbers never leave your device.

Showing all 7 tools.

Plug in your tickers and allocations, get a clean chart you can actually screenshot and share without it looking terrible.

Buying more? Selling some? See exactly what it does to your average cost before you do it.

See what a starting amount plus monthly contributions grows into, with a chart of your money versus the interest it earned.

Project your dividend income year by year, with dividends reinvested through a DRIP or taken as cash.

Tell it how much you're willing to lose, where you're getting in, and where you're bailing. It tells you exactly how many shares to buy.

Breakeven, max profit, max loss, and a payoff chart for any call or put, bought or sold.

Enter your salary or hourly rate and watch what you've earned today tick up by the second. Leave it open through the workday.

Looking for tools made by other people? Browse the directory.