Calculator — OptionsLab

Building a multi-leg strategy? Open the strategy calculator →

Spot Price

Strike Price

DTE (days)

IV% (annual)

Risk-Free Rate%

Option Type

Option Price

—

Fair Value

Δ Delta

—

Directional

Γ Gamma ×1000

—

Acceleration

Θ Theta /day

—

Time decay

V Vega

—

IV sensitivity

Intrinsic

—

Real value

📊 INTERPRETATION

Enter values above to see Greeks analysis.

ℹ️ HOW TO USE

Enter the Open Interest (in lots) for each strike. Max Pain is where total option writer losses are minimized — market tends to expire near this level.

Enter OI Data

CE OI (lots) PE OI (lots)

📝 Sample OI data shown below — replace with actual values from NSE option chain

MAX PAIN STRIKE

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Enter OI data above to calculate

Buy Price (₹)

Current Price (₹)

Lots

Lot Size

Buy Value—

Current Value—

P&L per Lot—

Total P&L —

Return % —

💡 TIP

This calculator uses lot size × lots × (sell - buy) for total P&L. For accurate brokerage, use our brokerage calculator or your broker's margin calculator.