Bitcoin Position Size Calculator (2026)

Position size (in BTC) = (account size × risk percent) / (entry price - stop-loss price). Risk percent is typically 1-2% of total account for swing traders, 0.25-0.5% for scalpers. The stop-loss distance defines how much per BTC you lose if the stop hits.

Conservative traders risk 0.5-1% per trade, allowing 100-200 trades before account ruin even with a 50% win rate. Aggressive traders risk 2-3%. Above 3% per trade, drawdown sequences quickly become fatal during normal losing streaks.

Leverage multiplies the notional position but not the dollars at risk per trade. With 5× leverage, your position is 5× larger but your stop-loss still triggers at the same percent move — meaning leverage shortens the stop-loss distance and increases per-trade volatility.

Yes — even experienced traders use calculators because position sizing math is easy to fudge in the moment. Calculating size before every trade enforces discipline and prevents the 'I'll just size up this once' mistake that compounds into ruin.

Yes — Custom Trading Platform's calculators expose an /embed/calculators/<slug>/ endpoint that returns an iframe-friendly version. Copy the embed code, paste it into your blog or trading journal, and the calculator works inline.