Crypto Position Size Calculator

Estimate crypto trade size from account value, risk budget, entry price, and stop price.

Total trading account value for this planning scenario.

Percent of the account you are willing to lose if the stop is reached.

Planned average entry price.

Price where the trade idea is invalidated.

Use 0 to 8 decimal places for coin quantity output.

Optional fixed money risk. Leave blank to use account value and risk percentage.

Optional round-trip cost estimate as a percentage of notional value.

Optional leverage limit for a warning if the notional size is too large.

Long expects the stop below entry; short expects the stop above entry.

Symbol used for money values in the output and breakdown.

Breakdown

Enter account value, risk percentage, entry price, and stop price to estimate a position size.


Calculator

How it works

Position sizing starts with a risk budget: how much account value you are willing to lose if price reaches the stop. The tool divides that risk budget by the price distance between entry and stop, adjusted for your optional round-trip cost estimate.

Risk amount = account value × risk percentage

Position size = risk amount ÷ (entry-to-stop distance + estimated cost per unit)

The output includes estimated coin quantity, notional value, stop-distance percentage, effective risk, estimated cost allowance, and implied leverage so you can check whether the scenario fits your own rules before trading.


Question

Assumptions and limitations

This is a simple planning calculator. It does not fetch market prices, model liquidity, funding rates, borrow costs, liquidation thresholds, exchange maintenance margin, tax treatment, partial fills, price gaps, or changing volatility.

Use the same currency basis for account value, risk amount, entry price, stop price, and fee assumptions. Results are estimates only and are not financial, investment, tax, legal, or trading advice.

All calculations happen locally in your browser. Your trade plan is not sent to a server.


Books

References