Financial

  • Continuous Compound Interest Calculator
    Calculate continuous compound interest with the formula A = Pe^(rt). Find the future value and total interest from principal, rate, and time instantly.
  • Overtime Pay Percentage Calculator
    Calculate overtime pay with any percentage uplift (time-and-a-half, double time). Enter hours, base rate and uplift % to see total OT pay and premium.
  • New Salary From Hike Percentage Calculator
    Calculate your new salary after a percentage hike. Enter your current salary and the raise percent to instantly see your revised pay and increase amount.
  • Simple Interest Percentage (Rate) Calculator
    Find the simple interest rate as a percentage from principal, interest earned, and time. Rate = (I / (P x T)) x 100. Free, instant, accurate.
  • Kelly Criterion Calculator
    Calculate the optimal bet or investment fraction with the Kelly Criterion. Enter win probability and odds to get your ideal stake and half-Kelly amount.
  • Tax-Inclusive Price Breakdown Calculator
    Break a tax-inclusive gross price into its net (pre-tax) amount and the sales tax portion. Enter the gross price and tax rate to see the full breakdown.
  • Markup Percentage From Cost and Price Calculator
    Calculate markup percentage from cost and selling price. Find profit, markup %, and margin instantly with this free pricing calculator.
  • Selling Price From Markup Calculator
    Calculate the selling price from unit cost and markup percent. Find your retail price and profit per unit instantly with this markup calculator.
  • Add Tax Percentage to Price Calculator
    Add a tax percentage to a net price instantly. Enter the net amount and tax rate to get the gross price plus the tax amount.
  • Selling Price From Margin Percent Calculator
    Calculate the selling price you need to charge from your cost and a target gross margin percent. Also shows profit per unit and equivalent markup.
  • Margin to Markup Percentage Converter
    Convert gross margin percentage to markup percentage instantly. Enter a margin % and get the equivalent markup on cost with the exact formula explained.
  • Markup to Margin Calculator
    Convert markup percentage to profit margin percentage instantly. Enter your markup % and get the equivalent gross margin with the exact formula.
  • Gross Margin Percentage Calculator
    Calculate gross profit margin percentage from revenue and cost. Instantly see profit, margin %, and markup % with this free margin calculator.
  • Reverse Sales Tax Calculator
    Work backward from a total price to find the pre-tax amount and sales tax. Enter the tax-inclusive total and tax rate to split out the base price.
  • Monthly Savings Needed for Goal Calculator
    Find the monthly deposit needed to reach a savings goal by a target date, accounting for compound investment growth at your expected annual return.
  • Debt-Free Date Calculator
    Find out when you'll be debt-free. Enter your balance, interest rate, and monthly payment to see months to payoff, your payoff date, and total interest.
  • Dividend Reinvestment (DRIP) Calculator
    Estimate how reinvesting dividends compounds your investment. Compare DRIP future value vs taking cash dividends, with total gain and DRIP advantage.
  • Hourly Overtime & Double-Time Calculator
    Calculate total gross pay from regular, overtime (1.5x) and double-time (2x) hours at any hourly rate. Free, instant, and easy to use.
  • Mortgage Closing Cost Calculator
    Estimate mortgage closing costs and total cash needed at closing from home price, down payment, and a 2-5% closing cost rate (US).
  • Position Size Calculator
    Calculate the ideal number of shares to buy based on your account size, risk percentage, entry price, and stop-loss. Trade with disciplined risk management.
  • Investment Growth with Monthly Contributions Calculator
    Calculate the future value of an investment with an initial deposit plus regular monthly contributions and compound interest. See total interest earned.
  • Profit and Loss Percentage Calculator
    Calculate profit or loss percentage instantly from cost price and selling price. Enter CP and SP to see your profit/loss amount and percentage.
  • 401(k) vs Roth 401(k) Calculator
    US retirement tool: compare a traditional 401(k) and a Roth 401(k) after taxes, accounting for upfront tax savings invested and your retirement tax rate.
  • Balance Transfer Interest Savings Calculator
    Estimate how much you save by moving credit card debt to a lower-APR card. Compares interest costs and subtracts the balance transfer fee.

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