Free Investing Tools & Calculators
Plain-English calculators that show the math behind your money decisions. Free, no signup, every formula shown so you can check it.
Compound Interest
See how monthly contributions compound into real growth over time.
Free · no signup CalculatorFee Drag
What a small expense-ratio difference costs you over decades.
Free · no signup Calculator401(k) Match
The value of the "free money" your employer match leaves on the table.
Free · no signup ComparatorETF vs Mutual Fund
Index vs active and ETF vs mutual fund — structure and strategy compared.
Free · no signup CalculatorRetirement Savings Goal
The monthly number that gets you to your target, worked backward.
Free · no signup ComparatorRoth vs Traditional IRA
Which account wins based on your tax rate now vs in retirement.
Free · no signup ComparatorPay Off Debt or Invest?
Your debt's guaranteed interest vs expected investment returns.
Free · no signup Comparator401(k) or Roth IRA?
The priority order: employer match first, then Roth vs traditional.
Free · no signup CalculatorAm I Saving Enough?
The on-track retirement check using the 4% rule.
Free · no signup CalculatorEmergency Fund
How many months of expenses your savings covers.
Free · no signup ComparatorCompare Two Funds
Fund A or Fund B — fee and structure compared in dollars.
Free · no signup CalculatorRule of 72
How long until your money doubles at a given return.
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