Free Day Trading Calculators
- Options Profit CalculatorBuild a trade of up to six legs and see its payoff chart, break-evens, maximum profit and loss, and how time decay changes the result before expiration.
- Position Size CalculatorTurn your account size, risk percentage and stop into the number of shares, lots or contracts to trade in stocks, crypto, forex or futures.
- Risk/Reward Ratio CalculatorEnter an entry, a stop and a target to see the dollar risk, the dollar reward and the win rate the trade needs to break even after fees.
- Kelly Criterion CalculatorFind the growth-maximizing share of your account to risk from your win rate and payoff ratio, along with half and quarter Kelly.
- Drawdown CalculatorSee how many losses in a row reach a given drawdown at your risk per trade, what gain recovers it, and how likely that streak is.
- Day Trading SimulatorRun 1,000 randomized trade sequences from your win rate and trade size, and read the median, the unlucky tenth and the chance of ending down.
- Iron Condor CalculatorEnter four strikes and premiums to see the credit, the width of the profit zone, both break-evens and the loss if a wing is breached.
- Trading Expectancy CalculatorWork out the average profit per trade from your win rate and average win and loss, and the win rate you need to break even.
- Trade Risk CalculatorSet a stop at a chart level or a percentage from entry and see how many shares fit your risk limit and how large that position is against your account.
- PDT Rule Day Trade CounterFINRA replaced the pattern day trader rule in 2026, and this counter tracks the old rolling five-day count for brokers that still apply it during the phase-in.
- Day Trading Tax EstimatorEstimate 2026 federal tax, net investment income tax and state tax on short-term gains, or the deduction and carryover from a net loss.
- Trading Margin CalculatorCalculate the initial margin, buying power and price where maintenance margin is breached, for long and short stock positions.
- Stock Average Down PlannerAdd your purchase lots to see the weighted average cost, then find how many shares a new buy would take to reach the average you want.
- CAGR CalculatorConvert a start value, an end value and a holding period into a single annual growth rate, with yearly contributions handled correctly.
- Long Call Options CalculatorSee the cost, break-even and profit at any stock price for buying a call, and how much value it loses to time if the stock stands still.
- Long Put Options CalculatorSee the cost, break-even and downside profit for buying a put, including the maximum if the stock falls to zero.
- Bull Call Spread CalculatorPrice a call debit spread from two strikes and see net debit, capped profit, break-even and return on risk.
- Bear Put Spread CalculatorPrice a put debit spread from two strikes and see net debit, capped profit, break-even and return on risk.
- Covered Call CalculatorSee the premium income, adjusted cost, return if the shares are called away and return if the stock goes nowhere.
- Cash-Secured Put CalculatorSee the premium, the cash to set aside, the effective purchase price if assigned and the return on that cash.
- Long Straddle CalculatorSee the total premium, both break-evens and the percentage move the stock has to make for a call and put at one strike to pay off.
- Wheel Strategy CalculatorFollow one cycle of selling a put, taking assignment and selling a call, with cost basis at each step and the return on the cash tied up.
- Forex Pip CalculatorGet the US dollar value of one pip on ten currency pairs at standard, mini, micro or custom position sizes.
- Forex Lot Size CalculatorEnter your risk percentage and stop distance in pips to get the lot size for a currency pair, rounded down to a size a broker will fill.