Crypto Position Size Calculator 2026
Calculate the exact position size you should take based on your account balance, risk tolerance, entry price, and stop loss. Used by professional traders to enforce the “2% rule” — risk no more than 2% of capital per trade. Free, no registration.
Inputs
How Position Sizing Works
The universal formula behind professional risk management:
Example: $10,000 account, 2% risk, BTC entry $50,000, stop $48,500 (3% adverse move):
- Risk amount = $10,000 × 2% = $200
- Stop distance = (50000 − 48500) / 50000 = 3%
- Position size = $200 / 3% = $6,667
- If you have $2,000 margin available, leverage needed = $6,667 / $2,000 = 3.33x
The 2% Rule (Why It Matters)
Risking no more than 2% per trade means:
- 10 consecutive losses = -18% drawdown (recoverable)
- 20 consecutive losses = -33% drawdown (still recoverable, but rare)
- 50 consecutive losses = -64% drawdown (career-ending probability ~0.1% with 50% win rate)
Compare to 10% risk per trade: 10 consecutive losses = -65% drawdown. You’d never recover statistically.
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What is position sizing in crypto trading?
Position sizing determines how much capital to allocate to a single trade based on your account balance, risk tolerance, and stop loss distance. The goal: cap potential loss at a fixed percentage of account regardless of trade direction or market.
What’s the 2% rule?
Never risk more than 2% of total account on a single trade. Example: $10,000 account → max $200 risk per trade. With proper position sizing, this means 10 consecutive losses = only -18% drawdown.
Should I always use leverage?
Leverage amplifies both profits and losses. Use only enough leverage to reach your target position size after risk-based sizing. Beginners should start at 2-3x; experienced traders rarely exceed 10x for swing trades.
How do I set my stop loss?
Place stop loss based on technical levels (below support for longs, above resistance for shorts) — not based on max acceptable loss. Then use position size calculator to determine size that respects your risk %.
Does this work for spot trading too?
Yes. Spot positions don’t require leverage, but the risk-based sizing logic identical. Just ignore the leverage output — your max position size = position you can buy outright with available capital.
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