Financial calculators
Free to use. Create an account to save and revisit your results.
Plan your money
Compound Growth Calculator
What could your money grow to? A year-by-year projection at a growth rate you choose, with taxes and inflation. No goal, no withdrawals.
Open →Freedom Date Calculator
When could work become optional? The year your investments could cover the yearly spending you want, in today's dollars.
Open →Emergency Fund Calculator
How much cash to keep for a rough patch, and how long until you have it.
Open →Debt Payoff Calculator
When your card or loan will be paid off, what an extra payment saves, and what that payment could grow to after.
Open →True Cost of a Purchase Calculator
The price tag is what you pay today. The true cost is what that money would have grown to.
Open →Home and real estate
Before you buy: what a mortgage really costs, what you can afford after investing first, and whether to rent.
Mortgage Amortization Calculator
Where every mortgage payment goes: mostly interest at first. See what extra principal payments save.
Open →Invest-First Home Budget Calculator
Not how much house a bank will lend you: how much fits after you've invested for your future first.
Open →Rent vs Buy Calculator
Which leaves you wealthier after the years you'll stay: buying, or renting and investing the difference.
Open →Pay Off the Mortgage or Invest? Calculator
Same extra money each month (and a yearly bonus): pay down the mortgage, or invest it. See which comes out ahead, after inflation.
Open →For parents
Give your kids the head start compounding rewards most. The Parents Hub explains how each account works.
Roth IRA for Kids Calculator
A child with a paycheck can have a Roth IRA. See what a few years of contributions could grow to, tax-free, by retirement.
Open →Custodial Account Calculator
Invest for your child from day one (UTMA/UGMA). See what they'd have when they take it over, and what it becomes if they leave it alone.
Open →Teen Account Calculator
A teen investing their own money (13 to 17), with an optional parent match. See what a few hundred dollars from a summer job can become.
Open →529 College Savings Calculator
Will your 529 cover college? See the share it pays for, and the monthly amount that would cover it all.
Open →Trump Account Calculator
The new account for kids: a $1,000 government deposit for babies born 2025 to 2028, up to $5,000 a year, and what it grows to.
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