Profit and loss calculator

The gross result is (exit price − entry price) × units, in the quote currency, with the sign flipped on a sell. It is then converted into the account currency.

The R multiple relates the result to the stop distance. It is the only measure that lets you compare trades of different sizes: +2 R means the same thing on a micro lot and on ten lots.

The sensitivity table shows the result at other exits. The slope is constant: that is what separates a linear instrument from an option, whose profile curves instead.

The cost of getting in and out. You buy at the ask and sell at the bid: that gap is subtracted from the result in the very first second.

Financing on positions held for several days, whose sign depends on the interest differential between the two currencies — sometimes in your favour, often against you.

Successive conversions. A euro account holding a yen position goes through two rates, and the one used here is the current rate, not the one on the closing day.