Tools
Small calculators that show how the math works. Every one runs entirely in your browser with made-up numbers — they’re illustrations to build intuition, never advice or predictions.
Compound growth
Watch a steady monthly contribution grow when its returns are reinvested.
Open the tool →Retirement projection
Project what regular contributions could become by the time you retire.
Open the tool →Debt payoff: avalanche vs snowball
Compare two ways to clear debt — least interest, or quickest early wins.
Open the tool →Dollar-cost averaging
See how investing on a schedule averages your cost across a bumpy price.
Open the tool →Dividend reinvestment
Compare reinvesting dividends with taking them as cash over the years.
Open the tool →