Everything runs in your browser — nothing is uploaded, stored or sent anywhere. Use them alongside the guides, or on their own before you place a position.
Work backwards from the loss you can accept, not forwards from the size you fancy.
Every mode above computes the same thing. Only the units differ:
Position size = (account balance × risk %) ÷ distance to stop
For forex the distance to stop is in pips, so the pip value has to be converted into your account currency first — which is why the pair and the account currency both matter:
Units = risk amount ÷ (stop in pips × pip size × quote→account rate)
A £10,000 account risking 1% is risking £100. You want to buy EUR/USD with a 25-pip stop. One pip on EUR/USD is 0.0001 of the quote currency, USD. If GBP/USD is 1.27, then one USD is worth about £0.787, so a pip is worth £0.0000787 per unit.
£100 ÷ (25 × £0.0000787) = about 50,800 units, or roughly 0.51 standard lots. If the stop is hit you lose £100, not a penny more — which is the entire point.
Most traders decide the size they want and then place a stop where it feels affordable. That inverts the logic: the stop belongs where the idea is proven wrong, and the size adjusts to it. Getting this one habit right does more for a set of results than any indicator, because it is the only variable you fully control — see risk management.
1% or less. At 1%, a run of eight consecutive losses — which a 45%-win-rate strategy produces regularly — costs about 8% and is entirely survivable. At 10% risk the same ordinary streak costs 57%.
Because leveraged products let it be. Your risk is still the figure shown, provided the stop fills — but the notional tells you how exposed you are to a gap, which no stop can protect against.
Then the account is too small for that stop distance. The correct answers are a tighter structural stop or a smaller-denomination instrument — never a bigger risk percentage.
No. Both effectively widen your stop slightly. On a 25-pip stop with a 1-pip spread you are risking about 4% more than shown — immaterial at sensible sizes, and another reason not to trade stops so tight that costs dominate.
A positive edge still loses for long stretches. See it for yourself.
Liquidity is not constant. Knowing which desks are awake is half of intraday timing.