FinanceCalcs
Crypto Position Size Calculator
Position sizing is the single most important risk management decision in crypto trading. Enter your account size, how much you’re willing to risk on this trade, your entry price, and your stop loss — and get the exact position size that keeps your risk controlled.
Professional traders never ask “what should I buy?” before asking “how much should I risk?” Position sizing is how you stay in the game long enough to be right.
Crypto Position Size Calculator
BTC -- $0 entry • $0 stop
Position Size: 0 BTC
Trade Summary
Risk % Scenarios
| Risk % | Max Loss | Position Size | Coins |
|---|
Consecutive Loss Impact
| Losing Trades | Account Value | Drawdown | Recovery Needed |
|---|
"The goal of a successful trader is to make the best trades. Money is secondary. If you keep the losses small and let the winners run, the money takes care of itself."
— Alexander Elder, Trading for a Living
Why position sizing matters more than your entry
Most crypto traders spend enormous time finding the “perfect entry.” Professional traders spend that time on position sizing. The reason: a well-sized position in a bad trade does far less damage than an oversized position in a good trade that temporarily goes against you before working out.
The core formula is straightforward: your maximum dollar risk divided by the distance to your stop loss gives you your position size. If you have a $10,000 account, risk 1% ($100), and your stop is 5% below entry, then your position should be $2,000. If the stop hits, you lose $100 — exactly 1% of your account. You can take 50 consecutive losing trades before losing half your account, which gives you ample time to reassess.
The same math works with leverage, though leverage amplifies the danger. 10x leverage means a 10% move against you wipes out your entire margin. Position sizing with leverage must account for the full notional position value, not just the margin required.
lightbulb Position Sizing Example
Account: $10,000 — Risk per trade: 2% — Entry: $67,000 BTC — Stop: $63,000
| Step | Calculation | Result |
|---|---|---|
| Max risk ($) | $10,000 × 2% | $200 |
| Stop distance ($) | $67,000 − $63,000 | $4,000 |
| Stop distance (%) | $4,000 / $67,000 | 5.97% |
| Position size | $200 / $4,000 | 0.05 BTC |
| Position value | 0.05 × $67,000 | $3,350 |
| % of account | $3,350 / $10,000 | 33.5% |
If the stop is hit, you lose exactly $200 — 2% of your account. The position is 33.5% of your account, which is far less than most traders would put on a “high conviction” trade.
Position Sizing FAQs
What percentage should I risk per trade?
Professional traders typically risk 0.5%–2% per trade. At 1% risk, you can lose 100 consecutive trades before losing your account — which is statistically almost impossible even with a terrible strategy. At 10% risk (common among retail crypto traders), 10 consecutive losses wipe the account. Losses in streaks of 5–15 are statistically normal even for profitable strategies.
How does leverage affect position sizing?
Leverage changes your margin requirement but does not change your risk in dollar terms — if you size correctly. With 5x leverage and a 2% stop loss on the leveraged position, your 2% stop becomes 10% of margin. The calculator handles this by computing the notional position size and showing required margin separately. The max loss stays exactly what you set.
What is a good risk-to-reward ratio?
Most professional traders require at least 2:1 R:R before taking a trade — risking $1 to make $2. At 2:1 R:R, you only need to win 34% of your trades to break even (before fees). At 3:1, you only need to win 25%. Crypto’s volatility makes 2:1 and 3:1 setups reasonably common on higher timeframe charts.
Terminology
Position Size
The total dollar value of your trade, or the number of coins/contracts. Determined by your risk amount divided by your stop distance per unit. The correct position size ensures that if your stop loss is hit, you lose exactly your pre-defined risk amount.
Stop Loss
A pre-defined price at which you automatically exit a losing trade. Without a stop loss, a trade can theoretically go to zero. The distance between your entry and stop loss determines how large your position can be for a given risk amount.
Risk-to-Reward Ratio (R:R)
The ratio of potential profit to potential loss. A 2:1 R:R means you stand to gain $200 if right and lose $100 if wrong. Higher R:R ratios mean you need to be right less often to be profitable overall.
Drawdown
The decline from a peak account value to a trough. A 50% drawdown requires a 100% gain just to recover — this asymmetry is why keeping individual losses small is so critical. A 20% drawdown only requires a 25% recovery.
Liquidation Price
With leverage, the price at which your entire margin is lost and the exchange closes your position forcibly. With 10x leverage, a 10% adverse move liquidates you. Liquidation prices are shown in the calculator when leverage is greater than 1x.
Disclaimer: All calculators on this site are provided for informational and educational purposes only. Results are estimates based on the inputs you provide and mathematical formulas — they do not account for taxes, fees, inflation, risk, or other real-world factors that may affect financial outcomes. Past performance does not guarantee future results. Nothing on this site constitutes financial, investment, legal, or tax advice. Always consult a qualified professional before making financial decisions.
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