Free Stock Trading Calculators for Risk, Profit & Position Size

Initial Shares

Initial Price ($)

Additional Shares

New Price ($)

Average = (Shares₁×Price₁ + Shares₂×Price₂) ÷ (Shares₁+Shares₂)

Entry ($)

Exit ($)

P/L = (Exit − Entry) × Shares.

Entry ($)

Stop ($)

Target ($)

Breakeven win rate ≈ 1 / (1 + R), where R = Reward/Risk.

Price ($)

Initial Margin (%)

Required Margin = Price × Shares × Margin% · Leverage ≈ 1/Margin%.