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United States · 17 tools

Investments & Savings calculators

See how contributions, time and rate compound — then stress the growth assumption you just typed. Figures use the inputs you enter; they are not a local-tax or lender quote.

Start here, then explore the groups below.

Compound InterestCalculate how compound interest grows savings or increases debt over time. Enter principal, rate, compounding frequency and term to project your final balance.Investments & SavingsInvestment ReturnCalculate simple investment profit, total return, and annualised return from a starting value, ending value, and holding period.Investments & SavingsSavings GrowthCalculate how your savings grow over time with regular contributions and compound interest. Project your future balance to plan for any savings goal.Investments & SavingsRetirement SavingsCalculate how much you will have at retirement based on your savings and contributions.Investments & Savings

Test the assumption, not a predicted return

Savings and investing calculators show how contribution, time and rate compound. They do not forecast markets. Run a cautious rate next to an optimistic one and keep fees in the same units as the growth rate.

  1. Fix the time horizon before you compare products or wrappers.
  2. Use the same contribution schedule in every scenario.
  3. Treat any growth rate as an input you chose — then stress it down.

Contribution, time, then rate

This hub brings together the investments tools currently available for US visitors. Start with the calculator closest to your question, enter figures that reflect your own situation, and compare more than one scenario when the decision is important.

The tools show the maths implied by the inputs. They do not replace provider quotes, professional advice, or country-specific rules that are not shown in the calculator. Review the assumptions beside each result before using it to make a decision.

More tools in this category17

Use these supporting calculators when you need a more specific comparison or a second opinion on the same decision.

Compound InterestCalculate how compound interest grows savings or increases debt over time. Enter principal, rate, compounding frequency and term to project your final balance.Investment ReturnCalculate simple investment profit, total return, and annualised return from a starting value, ending value, and holding period.Savings GrowthCalculate how your savings grow over time with regular contributions and compound interest. Project your future balance to plan for any savings goal.Retirement SavingsCalculate how much you will have at retirement based on your savings and contributions.Dividend YieldCalculate the dividend yield of a stock by dividing the annual dividend by the share price. Assess income potential before investing in dividend-paying shares.Future ValueCalculate the future value of an investment or savings plan with compound interest. Enter the principal, rate, compounding frequency and time to project growth.Present ValueCalculate the present value of a future cash flow discounted at a given interest rate. Understand what a future sum or annuity stream is worth in today's money.AnnuityCalculate annuity payments, present value and future value for fixed income streams. Estimate how much regular income your pension or investment will generate.SavingsCalculate how your savings will grow with regular deposits and compound interest. Enter your balance, monthly contribution and rate to project future savings.Index FundProject index fund investment growth with lump sum and regular contributions. See long-term compound returns.401(k)Calculate how much your 401(k) will grow by retirement. Enter your contribution, employer match, and expected return to project your nest egg and monthly retirement income.Roth IRACalculate how your Roth IRA will grow by retirement. See projected tax-free balance, total contributions, and the equivalent pre-tax value vs a Traditional IRA.Net WorthCalculate your net worth by entering assets and liabilities. See your total wealth, liquid assets, and debt-to-asset ratio to track your financial health.FIRECalculate your FIRE number and years until early retirement. Enter expenses, savings rate, and investment return to find your path to financial independence.529 College SavingsCalculate how much your 529 plan will grow. Enter contributions, investment return, and cost inflation to see your projected savings balance and funding gap.HSA Calculator (Health Savings Account)Calculate your HSA tax savings and projected balance. See how the triple tax advantage saves you each year and how your balance grows with investment returns.Social Security Benefit EstimatorIllustrate a US Social Security primary insurance amount from average annual earnings, then apply early-claim reduction or delayed-retirement credits. Not an SSA statement.

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