15 calculators
Calculators that answer the money question on the page
Type a balance, a payment, or a tax year income. The result updates as you change the numbers. No account, and none of this is advice.
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Compound Interest Calculator
What a balance becomes after years of deposits and compounding.
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Investment Time Machine
What a past lump sum would be worth on a historical path.
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Retirement Calculator
A nest egg at retirement, and the income a 4% draw would pay.
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Loan Payment Calculator
The monthly payment and the interest a fixed loan charges.
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Tax Bracket Calculator
Federal tax on ordinary income, and the rate that actually applies to the next dollar.
Investing
6Compound Interest Calculator
What a balance becomes after years of deposits and compounding.
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ROI Calculator
Total gain and the yearly rate, so a short hold can be compared with a long one.
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DCA Calculator
Ending value when you buy a fixed amount every month.
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Dividend Yield Calculator
Yield and cash income from a dividend and a share price.
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Investment Time Machine
What a past lump sum would be worth on a historical path.
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Stock Profit Calculator
Profit after commissions and a tax rate you choose.
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Planning
5Savings Goal Calculator
How many months a monthly deposit takes to hit a target.
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Retirement Calculator
A nest egg at retirement, and the income a 4% draw would pay.
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FIRE Calculator
The portfolio that covers your spending, and the years to get there.
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Emergency Fund Calculator
A cash buffer sized to your monthly bills.
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Net Worth Calculator
Assets minus debts, including the house and the mortgage.
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Loans and taxes
3Loan Payment Calculator
The monthly payment and the interest a fixed loan charges.
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Inflation Calculator
How much buying power a dollar amount loses at a rate you choose.
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Tax Bracket Calculator
Federal tax on ordinary income, and the rate that actually applies to the next dollar.
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Creators
1Before you start
- Do I need an account?
- No. The numbers stay in the browser. Nothing on these pages is saved to an account.
- Are the results advice?
- No. Each calculator is a sketch from the numbers you type. Fees, taxes, and market moves can change a real result.
- Which calculator should I open first?
- Compound interest if you are saving over years. Loan payment if you are borrowing. Tax bracket if you want the federal rate on ordinary income.