The risk/reward ratio, sometimes known as the R/R ratio, is a measure that compares the potential profit of a trade to its potential loss. It is calculated by dividing the difference between the entry point of a trade and the stop-loss order (the risk) by the difference between the profit target and the entry point (the reward). For example, if you buy a stock for $10 with a profit target of $12 and set a stop-loss at $9, the risk-reward ratio is 1:2 because you’re risking $1 to make $2.