The money toolkit
Money calculators
Two connected toolkits that lead with the answer, not a form: grow your money with compound interest, and plan the finish line with the retirement calculators.
Grow your money
Compound interest & investing
Model any savings or investment plan, see your money grow, and ask “what if?”.
Compound Interest Calculator
The flagship — model any savings or investment plan and ask “what if?”
Open →Daily Compound Interest Calculator
Interest added every day — see the APY effect.
Open →Investment Growth Calculator
Project a portfolio with monthly contributions.
Open →Investment Return Calculator
Turn an annual return into a total, with APY.
Open →Roth IRA Compound Interest Calculator
Project tax-free Roth IRA growth over decades.
Open →CD Compound Interest Calculator
How much a certificate of deposit earns by maturity.
Open →Savings Goal Calculator
Plan a target — down payment, emergency fund, more.
Open →Compound Interest Savings Account Calculator
What a high-yield savings account earns over time.
Open →Plan the finish line
Retirement planning
From “can I retire?” to “how much do I need?”, the 401(k), Social Security, the 4% rule, and how long your money lasts.
Retirement Calculator
Can you retire when you want? See your verdict and how to close any gap.
Open →401(k) Calculator
Project your 401(k) with employer match — and see if you’re on track.
Open →How Much Do I Need to Retire?
The nest egg your spending needs — in today’s money.
Open →Retirement Savings Calculator
Are your savings on track for retirement?
Open →Social Security Calculator
How Social Security fits your retirement plan.
Open →401(k) Withdrawal Calculator
How much you can draw from a 401(k), and for how long.
Open →Retirement Savings by Age
How much to have saved by 30, 40, 50, 60.
Open →How Long Will My Money Last in Retirement?
How many years your savings will last.
Open →4% Rule Calculator
The 4% rule: your target nest egg and safe withdrawal.
Open →Retirement Withdrawal Calculator
A sustainable yearly withdrawal, and how long it lasts.
Open →Popular “can I retire?” scenarios
Verdict-first answers for the most-searched age and savings combos.
Can I retire at 55 with $2 million?
The verdict, the income, and how long $2 million lasts from 55.
Open →Can I retire at 60 with $1 million?
The verdict, the income, and how long $1 million lasts from 60.
Open →Can I retire at 62 with $500,000?
The verdict, the income, and how long $500,000 lasts from 62.
Open →Can I retire at 65 with $1 million?
The verdict, the income, and how long $1 million lasts from 65.
Open →