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Investing Calculators

Calculators for investment returns, dividends, bonds, options, portfolio rebalancing, fees and retirement income.

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CD Rate Calculator

Calculate the interest and maturity value of a certificate of deposit, and the cost of withdrawing early.

Annuity Payout Calculator

Calculate the regular payout a lump sum can provide for a fixed number of years at a given interest rate.

Safe Withdrawal Rate Calculator

Calculate the first-year retirement withdrawal from a portfolio, then how many years it lasts with inflation-adjusted withdrawals.

Fund Expense Ratio Calculator

Compare how two fund expense ratios affect the final value of an investment and the total cost of fees over time.

Portfolio Rebalancing Calculator

Calculate current portfolio weights and the buy or sell amount for each holding to return to your target allocation.

Options Profit and Loss Calculator

Calculate profit or loss at expiry for long or short calls and puts, with break-even, maximum gain and loss, and a payoff table.

Treasury Bill Yield Calculator

Calculate a Treasury bill's discount yield, bond-equivalent yield and dollar return from face value, price and days to maturity.

Bond Yield to Maturity Calculator

Calculate a bond's yield to maturity, current yield and the approximate YTM from price, coupon, face value and years to maturity.

Dollar-cost Averaging Calculator

Calculate the shares bought, average cost per share and gain from investing a fixed amount at regular intervals.

Dividend Reinvestment Calculator

Compare the growth of an investment with dividends reinvested against taking dividends as cash, with dividend and price growth.

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Let’s build something worth finding.

Tell us where you want the business to be in twelve months. We will come back with a costed plan, a realistic timeline, and the numbers we expect to move — no obligation, no jargon.

30-minute call, no pitch deck

Fixed-price proposal in 48 hours

You own everything we build