Position size calculator
Choose how much of your account a losing trade may cost and where your stop is. PipDesk gives the size that risks exactly that.
How it is worked out
Money at risk = balance × risk %. One pip (or point) is worth pip size × contract size per lot, in the quote currency, converted to your account currency. Lots = money at risk ÷ (stop × value of one pip per lot), rounded down to your lot step so you never risk more than you chose.
Questions
What risk per trade should I use?
Many professional traders risk 0.25% to 2% per trade, so that a losing streak cannot wipe out the account. Ten losses in a row at 1% cost about 9.6%; at 5% they cost 40%.
Why does the result change with my account currency?
A pip is worth an amount of the quote currency. If your account is in another currency, that amount is converted, so the same stop costs a different number of your dollars, euros or yuan.
Do spreads and commissions matter?
Yes. Your stop fills at the bid or ask, and commission adds to the loss. Add the typical spread to the stop distance for a more conservative size.