TradingCrypto liquidation price calculatorEstimate the liquidation price of an isolated-margin USDT-margined futures position, long or short.TradingPosition size calculatorSize every trade from the amount you are willing to lose, not from a gut feeling.TradingFutures PnL & ROE calculatorSee the real profit of a leveraged trade after trading fees and funding.TradingRisk/reward & break-even win rate calculatorFind out how often a setup must win to be worth taking.TradingDCA / average entry price calculatorCombine several buys into one average entry price.InvestingPortfolio rebalancing calculatorGet back to your target allocation with exact buy and sell amounts.Small businessBreak-even calculatorHow many units do you need to sell to cover your costs?Small businessProfit margin & markup calculatorMargin and markup are not the same. Get both, or set a price from either one.Small businessEtsy, Shopify & Amazon fee & profit calculatorEstimate what you keep from each sale after platform and payment fees.Food businessRecipe cost & food cost % calculatorCost a recipe from its ingredients and price the plate by target food-cost %.Small businessOvertime & shift hours pay calculatorTotal a week of shifts, including overnight ones, and calculate overtime pay.Small businessReorder point & safety stock calculatorKnow exactly when to reorder so you do not run out.Personal finance50/30/20 budget calculatorSplit your take-home pay into needs, wants and savings in seconds.InvestingCompound interest calculatorSee how a starting amount and monthly contributions grow over time.TradingDaily compounding calculator (1% a day)See what a constant daily % gain compounds to. Spoiler: almost no one sustains it.Personal financeSavings goal calculatorFind the monthly amount that gets you to your goal on time.Personal financeLoan & mortgage amortization calculatorMonthly payment, total interest and a yearly amortization schedule.Personal financeDebt payoff calculator: snowball vs avalancheCompare both popular payoff methods with your real debts.InvestingFIRE / retirement number calculatorHow much do you need to retire, and how long will it take?Personal financeInflation calculatorSee how inflation changes prices and the value of your money.TradingPercentage change & loss recovery calculatorCalculate % change, and the gain needed to get back to even after a loss.Small businessHourly to salary calculatorConvert hourly pay to annual salary, or salary to an hourly rate.Small businessSales tax & VAT calculatorAdd tax to a price, or work out the tax inside a tax-inclusive price.TradingLeverage & margin requirement calculatorHow much margin a position needs, or how big a position your margin allows.
Guides with worked examples
Guide · TradingHow to calculate liquidation price for a leveraged positionGuide · TradingThe position sizing formula, with worked examplesGuide · InvestingCompound interest with monthly contributions, explainedGuide · Food businessFood cost percentage formula, with worked examplesGuide · Small businessBreak-even analysis: a worked example for small businessesGuide · Personal financeDebt snowball vs avalanche: a side-by-side example
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