🧮 Investing Calculators

Everything runs in your browser - nothing is sent to a server. For educational reference only, not investment advice.

Compound Interest Calculator

See how an initial investment plus monthly contributions grows over time at a target rate of return.

Initial investment ($) Monthly contribution ($) Annual return (%) Years

Calculate how many shares to buy based on how much of your account you're willing to risk on this trade.

Account balance ($) Risk per trade (%) Entry price ($) Stop-loss price ($)

Compare valuation multiples for two stocks side by side. A lower multiple isn't automatically "cheap" - sector and growth rate matter.

Share price ($) EPS ($) Book value per share ($)

Share price ($) EPS ($) Book value per share ($)

For the concepts behind these numbers, see the Stock Basics and Trading Strategies courses.