free tool · Degen risk and bankroll math

crypto position size calculator

Size every ape so a stop-out, or a rug, costs only what you planned.

100% free
No sign-up
No wallet connection

your numbers

Trading bankroll$

Risk per trade%share of the bankroll you accept to lose

Common:

Entry and stop by

Entry market cap$Stop-loss market cap$where you sell if wrong

Fees and slippage (2% round trip by default)

Round-trip fees and slippage%buy + sell fees and slippage, as a share of the position

your result

Position size6.3% of bankroll

$312.50

If the stop fills you lose $100.00 with the stop 30.0% below your entry, fees included.

Loss at stop-$100.00
Rest of the position$212.50
Not in this trade$4,687.50

If it rugs (no fill at stop)

-$312.50

-6.3% of bankroll

Rug-proof size

$100.00

size where a full rug = your risk

Position size at other risk levels · loss at the stop

0.5%$78.13loss -$25.00
1.0%$156.25loss -$50.00
2.0%$312.50loss -$100.00
5.0%$781.25loss -$250.00

Memecoins gap through stops: a rug or a dev dump fills far below your stop, or not at all. The rug-proof size is the only size whose worst case equals your risk.

Runs in your browser. Nothing is stored or sent to us. Not financial advice.

quick answer

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 to use the position size calculator

Decide how much to put into a trade before you buy. Enter your bankroll, the share you accept to lose, your entry and your stop (by market cap or price) and get the position size, the loss at the stop and the rug-proof size for tokens that can go to zero in one candle.

Enter your bankroll
Enter your trading bankroll: the money set aside for trading, not your savings.
Pick your risk
Enter the share of it you accept to lose on this trade (1 to 2% is common).
Entry and stop
Enter the entry and your stop-loss, in market cap or price.
Add the fees
Add round-trip fees and slippage, then read the position size.

formula

The exact math the position size calculator runs, so you can check any result by hand.

risk in USD = bankroll × risk %stop distance = (entry − stop) ÷ entryposition size = risk in USD ÷ (stop distance + round-trip costs)rug-proof size = risk in USD

guide

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 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.