SHEET 40 — CALCULATORS

Free options calculators.

Fast, free, educational math for defined-risk options trading. Credit spreads, iron condors, position sizing and implied moves — every result leads with max loss, because that is the number that matters.

Educational research only. Not financial advice.

FIG. 40.1Credit Spread CalculatorMax loss, max profit, breakeven, return on risk and an approximate POP for put and call credit spreads.MAX LOSSBREAKEVENPOP ≈OPEN CALCULATOR →FIG. 40.2Iron Condor CalculatorFour strikes, one credit — wing widths, max loss, both breakevens and the width of your profit zone.MAX LOSS2× BREAKEVENPROFIT ZONEOPEN CALCULATOR →FIG. 40.3Position Sizing CalculatorAccount size and a risk budget in, suggested contract count out — with a quarter-Kelly sanity reference.RISK %CONTRACTS¼ KELLYOPEN CALCULATOR →FIG. 40.4Implied Move CalculatorTurn implied volatility and DTE into an expected move with 1σ (68%) and 2σ (95%) price ranges.EXPECTED MOVE1σ / 2σRANGE MAPOPEN CALCULATOR →FIG. 40.5Options Profit CalculatorSingle-leg calls and puts — P/L at expiration, max loss, max profit, breakeven and a payoff diagram.P/L CURVEMAX LOSSBREAKEVENOPEN CALCULATOR →FIG. 40.6Event Contract EV CalculatorYes-price, fee and your probability estimate — implied probability, fee-adjusted EV and breakeven probability.IMPLIED PFEE-ADJ EVBREAKEVEN POPEN CALCULATOR →FIG. 40.7Crypto Position Sizing CalculatorAccount size, risk budget and a volatility-aware stop distance — position size, dollar risk and a liquidation-awareness check.RISK $POSITION SIZEVOL PRESETSOPEN CALCULATOR →FIG. 40.8Commodity Risk CalculatorNotional, margin, stop distance and dollar-per-point — margin-to-equity, risk per contract and contracts for your budget.MARGIN/EQUITYRISK / CONTRACTCONTRACTSOPEN CALCULATOR →

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