Position Size Calculator

Calculate how much to buy to keep your risk constant.

Account Details
₹
%
Standard risk is 1% to 2%.
Trade Details
Recommended Quantity
0
Shares / Units to Buy
Risk Amount ₹ 0
Capital Required ₹ 0
Stop Loss Pts 0.00
Risk % Actual 0%
Insufficient Capital!
You need more margin for this quantity.

What is Position Sizing?

Position sizing refers to the number of units (shares, lots, coins) you invest in a specific trade. It is the most critical component of risk management.

The 1% Rule

Professional traders suggest never risking more than 1% to 2% of your total trading capital on a single trade. This ensures that even a string of losses won't wipe out your account.

How is it Calculated?

The formula used in this tool is:

Position Size = (Total Capital × Risk %) / Distance to Stop Loss

Example: If you have ₹1,00,000 capital and want to risk 1% (₹1,000), and your Stop Loss is ₹10 away from entry, you should buy 100 shares (1000 / 10).

Tool developed by Rahul Kumar (WPFixHub) to help Indian traders survive and thrive in the stock market.

What is Position Size Calculator?

A Position Size Calculator helps stock, forex, and crypto traders determine the exact number of shares/lots to buy based on account capital, risk percentage, entry price, and stop loss. Proper position sizing is THE most important risk management rule - it prevents account blowups and ensures you can survive losing streaks. Calculate optimal quantity to risk only 1-2% capital per trade, maximize profits while protecting downside, and trade like professionals!

Formula

Position Size = (Capital × Risk%) ÷ (Entry Price - Stop Loss) Risk Per Share = Entry Price - Stop Loss Max Risk Amount = Capital × Risk% Example: ₹1L capital, 2% risk, Buy ₹100, SL ₹95. Qty = (1,00,000 × 0.02) ÷ 5 = 400 shares

Benefits of Using Position Size Calculator

Exact Quantity Calculation – Know how many shares to buy
Risk Management – Never risk more than 1-2% per trade
Capital Preservation – Protect trading account from big losses
Stop Loss Based – Position size based on your SL level
Multi-Asset Support – Works for stocks, forex, crypto, commodities
Free & Professional – Used by profitable traders worldwide
Pro Tip: #1 rule: Risk only 1-2% capital per trade! ₹2L account? Max risk = ₹4,000. This way you can survive 50 consecutive losses (unlikely!) without blowing account. Position sizing is MORE important than entry/exit strategy!

Frequently Asked Questions

Professional traders: 1-2% per trade. Aggressive: 3-5% (risky!). Example: ₹5L account, 2% risk = ₹10,000 max loss per trade. This allows 50 trades before losing even half capital. Beginners should start with 0.5-1%!

₹3L capital, risk 2%, buy TCS at ₹3,500, SL ₹3,400. Risk per share = ₹100. Max risk = 3,00,000 × 2% = ₹6,000. Position size = 6,000 ÷ 100 = 60 shares. Total investment = 60 × 3,500 = ₹2,10,000 (70% of capital).

Don't trade that stock! If position sizing says buy 500 shares but you can only afford 200, either: (1) Skip the trade, (2) Tighten stop loss, (3) Trade smaller-priced stocks. NEVER compromise on risk % to fit a trade!

Intraday: Tighter SL (1-2%), smaller position size BUT with margin (3-5x leverage). Delivery: Wider SL (3-5%), larger position size, no leverage. Risk % should be same (1-2% of capital) for both!

Same formula! Example: $10,000 account, 1% risk, EUR/USD at 1.1000, SL 50 pips (0.0050). Risk = $100. Position size = 100 ÷ 0.0050 = 20,000 units = 0.2 lots (mini). Always calculate in account currency!

Poor position sizing! They risk 10-20% per trade, hit 3 losses = account destroyed. With 2% risk, you need 50 consecutive losses to blow account! Position sizing + stop loss = survival. Trading edge = profits. Master sizing first!

Related Calculators

Risk Reward Calculator
Brokerage Calculator
Margin Calculator
Reviewed by Rahul Kumar | Founder, WPFixHub
Updated: August 2026
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