Position size calculator
The largest position a stop distance and a dollar risk budget allow, for futures, forex, stocks and crypto — with the contract economics already worked out. Nothing is sent anywhere and nothing is stored — it computes in your browser.
Enter an entry, a stop on the other side of it, and what you are willing to lose. The size comes out of the distance between the two — there is nothing to configure.
What it is doing
Position size is not a preference. Once you have decided where the trade is invalidated and how much that being wrong is allowed to cost, the size is arithmetic: the dollar budget divided by what one unit loses over that stop distance.
The part that gets it wrong by hand is the middle term, because it is different for every asset class. A futures contract loses its point value per point — a stop twenty points away on one NQ contract is $400, on one MNQ it is $40. A forex pair loses its pip value per pip, scaled by lot size. A stock loses the price difference per share. This uses the contract economics in Edgekeeper's instrument catalog, so you pick the symbol rather than looking up its multiplier.
The answer is rounded down to a whole tradeable increment, which is why the risk it reports back is usually a little under your budget. Rounding up would put you over the number you just said was your limit.
The two things this version cannot see
A size that respects your per-trade risk can still end a funded account. If you are already down most of today's loss limit, the correct size is the one that fits in what is left of it, not the one that fits your usual budget. And if your balance is close to a trailing drawdown floor, the binding constraint is the distance to that floor.
Both need to know your account, which a public page deliberately does not. Signed in, the same calculator applies all three limits and tells you which one is binding. It is free, and there is no card.