Interactive Calculators

Financial Tools

Build your portfolio, plan your retirement, optimize your taxes, and allocate your savings — all for free.

Model Portfolio Builder

Generate a diversified 3-5 fund Vanguard portfolio based on your age and risk tolerance.

See if you're on track to retire comfortably — and what to adjust if you're not.

Find your personalized emergency fund target (3/6/9/12 months) based on your situation.

Compare avalanche vs snowball strategies and see how fast you can be debt-free.

Visualize your ideal budget split between needs, wants, and savings — the simplest budget you'll ever use.

Compare tax scenarios to see whether paying taxes now (Roth) or later (Traditional) saves you more money.

See if your 529 plan is on track to cover college costs — and what to adjust if it's not.

Split your monthly savings across competing goals — emergency fund, retirement, house, and more.

Understand the differences between index funds. See why we recommend Vanguard and explore alternatives.