Trading calculators
for smarter trades.

Calculate optimal share quantity based on account size and risk.

Find the mathematically optimal percentage to risk per trade.

Calculate probability of blowing your account based on trading stats.

Calculate P/L, breakeven, and max gain/loss for calls and puts.

Calculate risk/reward ratio, R-multiple, and minimum win rate.

Calculate the value of a pip for any currency pair and position size.

Calculate total exposure and tick value for any futures contract.

Calculate expected price range based on implied volatility.

Find the strike price where option holders lose the most money.

Estimate the probability an option expires in or out of the money using IV and time to expiration.

Calculate dollar risk, reward, R-multiple, and breakeven win rate for any trade.

Calculate compound annual growth rate from starting value, ending value, and time period.

Measure your strategy's risk-adjusted performance with the annualized Sharpe Ratio.

Measure risk-adjusted returns using downside deviation instead of total volatility.

Calculate breakeven points for multi-leg options strategies like iron condors, straddles, and spreads.

Calculate European call/put prices using the Black-Scholes model with optional dividend yield.

Calculate implied volatility (IV) from an option's market price using Black-Scholes.

Calculate Delta, Gamma, Theta, Vega, and Rho for European options using Black-Scholes.

Calculate risk/reward ratio, expected value, and minimum win rate for any trade setup.

Calculate maximum drawdown and the return needed to recover from losses.

Calculate profit or loss, percentage return, and breakeven price for any stock trade.

Calculate required margin to open a position based on size, price, and leverage.

See how your trading account grows with compound returns over time.

Calculate weighted portfolio return from individual holding weights and returns.

Calculate dollar-cost averaging results with average cost and lump sum comparison.

Calculate average cost per share when buying at multiple prices.

Calculate the correct forex lot size based on account size, risk, and stop loss.

Calculate effective leverage ratio and exposure relative to account equity.