
Free tools
Trading Calculators
TheDesperateTrader.com· Size trades, track returns and lower your cost basis
A growing set of free calculators for day traders. Every one runs instantly in your browser with no sign-up. Size a trade to your risk, work out the profit on a position, or find your new average after adding shares.
Position Size CalculatorHow many shares to buy for a set dollar risk, with max loss and 1R/2R/3R targets.Stock Profit CalculatorYour exact dollar profit or loss, total return % and breakeven price on any trade.Average Down CalculatorBlended average cost after adding to a position, plus the move back to breakeven.Risk Reward CalculatorReward-to-risk ratio, the breakeven win rate it implies, and your expectancy.Loss Recovery CalculatorThe exact gain needed to break even after a loss, with a drawdown table.Dollar Cost Average CalculatorTotal shares, blended average cost and return across a series of buys.
Tools sharpen the trade; the scanner finds it. Get free real-time unusual-volume alerts, no card required.
No card · 5 premium daysFrequently asked questions
Everything you need to know about our free trading calculators on TheDesperateTrader.
- Are these trading calculators free?
- Yes. Every calculator on this page is completely free, works instantly in your browser, and needs no account, email or credit card. They are here to be useful and to introduce you to our free real-time scanner.
- Which calculator should I use?
- Use the position size calculator before a trade to decide how many shares to buy for a set risk. Use the stock profit calculator to see the gain, loss or return on a trade. Use the average down calculator when you add to an existing position and want your new average cost and breakeven.
- Do the calculators account for fees and taxes?
- The profit calculator lets you enter commissions and fees. None of the tools calculate taxes, which depend on your holding period and tax situation. They are educational tools, not tax or investment advice.
Explore the market
Free, live market tools. No account required to look.
Free Stock ScannersEvery scanner in one placeCaught EarlyWhat our scanner flagged before it ranHow It WorksOur data, methodology & accuracyStock Market TodayWhat’s actually moving right nowStocks to WatchTop 10 to watch next session, with reasonsTrending StocksWhat’s moving & being searched nowStock Sectors & ThemesAI, crypto, energy, banks & 40 moreBiggest Gainers TodayTop gainers & most activeWhy Stocks Are MovingToday’s movers + the catalyst behind eachInsider BuyingStocks insiders are buying (Form 4)Biggest Losers TodayTop decliners & worst performersPremarket MoversTop gainers & losers before the bellGap ScannerBiggest gap ups & downs. Did it fill?After Hours MoversTop gainers & losers after the closeMost Active StocksHighest dollar-volume names52-Week Highs & LowsStocks making new highs & lowsOversold StocksLowest RSI, mean-reversion watchLow Float StocksSmallest floats, squeeze watchMost Volatile StocksBiggest daily range by ATR%Most Shorted StocksHighest short % of floatShort Squeeze StocksTop squeeze candidates by scorePenny StocksMost active under $5Stocks Under $1Most active sub-$1 namesStocks Under $10Most active under $10Overbought StocksHighest RSI, extended / pullback watchWeekly MoversBiggest gainers & losers this weekStock ScreenerScan by price, volume & RVOLThe Money MapMarket cap added or wiped, by sectorSector PerformanceBest & worst sectors todayStore ClosuresRetail & restaurant stocks under pressureEarnings CalendarWho reports before open & after closeEarnings Next WeekThe week ahead, biggest names by dayMoving After EarningsBiggest post-earnings gainers & losersEconomic CalendarFOMC, CPI, jobs & market-moving dataDividend CalendarEx-dates, yields & buy-by datesIPO CalendarRecent & upcoming stock listingsDaily RecapHow each session played outRVOL ScannerLive unusual-volume alertsHalt ScannerLive trading halts & resumesStock Halts TodayHalted stocks + reasons & resumesLive AlertsThe real-time scanner feedSmart MoneyInsider buys, 5% stakes & 13FReddit RadarTrending tickers & top postsGoogle Search RadarStocks America is Googling nowMarket CalendarEconomic, earnings & dividends in oneCrypto PricesLive Bitcoin, Ethereum & top coinsCurrency ConverterExchange rates: EUR, GBP, JPY & moreMortgage RatesCurrent 30-year & 15-year ratesAI StocksThe AI buildout: chips, cloud & softwareSemiconductor StocksChipmakers & equipment, and why they move