CoinAera

Position Size Calculator

Calculate ideal position size from account balance, risk percentage, entry price, and stop loss.

Use this crypto position size calculator to set risk %, enter balance, entry, and stop distance, and get the exact size and quantity that fits your plan.

How to use

  • 1) Pick a coin and we fill current price.
  • 2) Adjust inputs; results auto-refresh.
  • 3) Copy results and open the next tool if needed.

Inputs

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Recent & popular

Live price fills entry/buy fields for quick setup. Adjust any value before calculating.

USD
%
USD
USD
Enter values and click Calculate to see results.

How it works

Enter balance, risk %, entry, and stop. The calculator returns a size that keeps dollar risk within limits, which makes it easier to survive losing streaks and compare trades on the same risk basis instead of changing size impulsively.

Formula

Position Size = (Account Balance × Risk %) ÷ (Entry − Stop) for longs. The smaller your allowed risk or the wider your stop distance, the smaller the position needs to be. That tradeoff is what keeps risk controlled.

Example

Balance $10,000, risk 1%, entry $100, stop $95 → size ≈ $2,000. A $5 move equals $100 risk (1%). If the same trade required a much wider stop, the calculator would force a smaller position, which is exactly what protects the account from oversized losses.

Tips

  • Set risk first, then size—never the other way around.
  • Adjust size when volatility widens stops.
  • Align with risk/reward targets before placing orders.

FAQ

What risk % should I use?

Commonly 0.5–2% depending on volatility and experience.

Can this work for futures?

Yes; incorporate leverage but keep dollar risk fixed.

Do I include fees?

For precision, include expected fees/slippage in the risk calc.

Continue your trade plan

Move from this calculator into the next tools that usually matter most: sizing, reward-to-risk, fees, and the supporting guides that explain the trade logic.

Step 1 → Profit CalculatorStep 2 → Position Size CalculatorStep 3 → Risk Reward CalculatorStep 4 → Liquidation Calculator

Related Crypto Calculators

Continue the trade plan with the next calculators that usually matter after this step, from fees and position sizing to exit planning and downside control.

Stop Loss

Stop Loss Calculator

Set a stop loss level for a crypto trade and estimate stop price plus dollar risk for long or short positions.

Risk/Reward

Risk Reward Calculator

Measure trade risk, reward, and reward-to-risk ratio for crypto entries, stops, and targets.

Profit

Crypto Profit Calculator

Calculate crypto trading profit, total revenue, and ROI from your entry and exit prices.

Liquidation

Liquidation Calculator

Estimate the liquidation level of a leveraged crypto long or short position.

Fees

Trading Fee Calculator

Calculate trading fees for one-way or round-trip crypto trades and estimate their effect on net proceeds.

Related Guides

Crypto Risk Management Guide: Sizing, Stops, and R:R

Manage crypto risk with position sizing, stop losses, and reward-to-risk planning linked to calculators.

How to Use a Stop Loss in Crypto (With Calculator)

Place crypto stop losses, set risk, and avoid liquidation using a stop loss calculator.