Free Options Calculators for Nifty, Bank Nifty & US
Work out Nifty and Bank Nifty premium, Greeks and max loss before you open the trade. US options tools are listed too.
Calculators
Theta Decay Calculator
Free theta decay calculator for Nifty & Bank Nifty options. See daily premium erosion, weekend impact, weekly vs monthly time decay. 7 inputs, 18 outputs.
Nifty Options Premium Calculator
Calculate Nifty, Bank Nifty, and FinNifty options premium with Black-Scholes. Delta, Gamma, Theta, Vega, probability of profit, and lot P&L.
Options Greeks Calculator 2026: Delta Gamma Theta Vega
Enter spot, strike, days to expiry and volatility to get all four Greeks, with a plain explanation of what each number means for your position.
Options Breakeven Calculator
Calculate options breakeven for calls and puts on Nifty and Bank Nifty: intrinsic value, time value, probability of profit, and theta decay.
Nifty Options Profit Calculator — P&L at Expiry
Call or put, buy or sell, strike and premium in. P&L, breakeven and max loss out, for Nifty and Bank Nifty. Free.
Bank Nifty Straddle Calculator 2026: Premium & Breakeven
Enter the ATM call and put premiums to get both breakevens, max profit, max loss and margin needed for a Bank Nifty long or short straddle.
Black Scholes Calculator
Free Black Scholes calculator. Enter spot, strike, days to expiry, volatility and rate to get the theoretical option price plus delta, gamma, theta and vega.
Implied Volatility Calculator
Free implied volatility calculator. Enter the market option price, spot, strike, days to expiry and rate to solve the implied volatility using Newton Raphson.
Credit Spread Calculator
Free credit spread calculator for put and call vertical spreads. Get max profit, max loss, breakeven, return on risk and an estimated probability of profit.
Poor Man's Covered Call Calculator
Free poor man's covered call calculator. Enter your long LEAPS cost and short call credit to get net debit, max profit, max loss, breakeven and return on risk.