πŸ“ŠRiskSizer

Crypto Position Size Calculator

Calculate how many coins to buy based on your risk budget and stop-loss distance β€” for Bitcoin, Ethereum, and any altcoin.

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Results update automatically as you type

Position Direction: -
Quantity: 0
Position Value: $0.00
Stop Loss Price: $0.00
Distance to Stop: 0%
Potential Loss: $0.00

πŸ“œ History

βš™οΈ Advanced settings Show/hide calculator blocks, choose exchange β–Ό

πŸ“ Form Blocks

Field for token / ticker input
If disabled β€” automatic TP 3:1
Include commission in calculations
ATR button in the stop loss toggle

πŸ“Š Result Blocks

Warnings and risk messages

πŸ“‘ Exchange for Quotes

Quotes are fetched from the selected exchange first. If not found β€” tries others.

Why crypto needs precise position sizing

Crypto markets move 5–20% in a single day. Without correct position sizing, a single trade can wipe out weeks of gains. This calculator defines your intended risk β€” actual loss may be higher if slippage or a price gap prevents your stop-loss from filling at the planned price.

How the crypto position size calculator works

Enter your account balance, the percentage you are willing to risk, your entry price, and your stop-loss price. The calculator outputs the exact quantity of coins to buy. Formula: Quantity = Risk ($) Γ· (Entry βˆ’ Stop-loss).

Bitcoin (BTC) position sizing example

Account: $10,000. Risk: 1% = $100. BTC entry: $65,000. Stop-loss: $63,500 (distance: $1,500). Result: $100 Γ· $1,500 = 0.0667 BTC. If BTC drops to $63,500 and the stop fills at that price, the loss is approximately $100. Slippage may cause a slightly different outcome.

Ethereum (ETH) position sizing example

Account: $5,000. Risk: 1% = $50. ETH entry: $3,200. Stop-loss: $3,040 (distance: $160, which is 5%). Result: $50 Γ· $160 = 0.3125 ETH.

Position sizing with leverage

Leverage does not change your risk β€” it changes your margin requirement. With 10Γ— leverage and a $65,000 BTC entry, your liquidation price is much closer to entry, so your effective stop-loss must be tighter. Always calculate position size based on your stop-loss price, not your liquidation price.

Supported exchanges

Works for all spot and futures markets: Binance, Bybit, OKX, Kraken, Coinbase, and any exchange where you can set a stop-loss. The formula is universal β€” exchange-specific lot sizes or tick sizes are handled by rounding the result.

Frequently asked questions

How do I calculate position size for BTC? ↓
Divide your risk amount by the distance between entry and stop-loss. Example: $100 risk, BTC entry $65,000, stop $63,500 β†’ $100 Γ· $1,500 = 0.0667 BTC.
What risk percentage should I use for crypto? ↓
Most professional crypto traders use 0.5–1% per trade due to high volatility. Beginners should start with 0.5%. Never exceed 2% on a single trade.
Does this calculator work for altcoins? ↓
Yes. Enter any coin price and stop-loss. The math is identical regardless of the asset β€” only the price and stop distance matter.
How do I account for leverage in my position size? ↓
The calculator gives you the position size in coins. With leverage, you need less margin to hold that position, but your risk stays the same. Always base your stop-loss on technical levels, not on your liquidation price.
How does crypto volatility affect position sizing? ↓
Higher volatility means wider stop-losses (to avoid being stopped out by noise), which means smaller position sizes. Use ATR-based stops to set stop distance proportional to current volatility.

Use the calculator above to compute your position size instantly. For a full guide on the formula and examples, see our position sizing guide.

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