how to use the position size calculator
- Enter your trading bankroll: the money set aside for trading, not your savings.
- Enter the share of it you accept to lose on this trade (1 to 2% is common).
- Enter the entry and your stop-loss, in market cap or price.
- Add round-trip fees and slippage, then read the position size.
formula
risk in USD = bankroll × risk % stop distance = (entry − stop) ÷ entry position size = risk in USD ÷ (stop distance + round-trip costs) rug-proof size = risk in USD
why memecoins need a rug-proof size
A stop-loss assumes you can sell near your stop. Memecoins break that assumption: a developer dump or a pulled pool can take the price down 90% between two blocks, and your sell fills far below the stop or not at all. The only size whose worst case equals your planned risk is the one where losing everything costs exactly that risk. With a $5,000 bankroll and 2% risk, that is $100 per ape.
worked example
Bankroll $5,000, risk 2% ($100). Entry at a $400K market cap, stop at $280K: a 30% stop distance. With 2% round-trip costs, each dollar in the trade loses 32 cents at the stop, so the position is $100 ÷ 0.32 = $312.50. If the token rugs instead, you lose $312.50, or 6.25% of the bankroll.
frequently asked questions
How much should I put in one memecoin trade?
A common rule is to risk 1 to 2% of your trading bankroll per trade. For fresh memecoins that can rug, keep the whole position near that amount, since the realistic worst case is a total loss.
How do you calculate position size?
Divide the dollars you are willing to lose by the distance to your stop as a fraction of the entry. $100 of risk with a 20% stop gives a $500 position.
Can I set stops in market cap?
Yes. Market cap and price move together for a fixed supply, so a stop at a $280K market cap works exactly like a stop at the matching price.
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