Risk-to-reward compares what a trade loses if you are wrong with what it makes if you are right. It is the one number that decides whether a strategy can survive a normal losing streak, and it is arithmetic rather than opinion — which is why it is the first thing to check on any setup, before the pattern, the indicator or the signal.
Risk is the distance from entry to invalidation. Reward is the distance from entry to target. A trade risking 20 pips to make 60 is 1:3. The break-even win rate for any ratio is 1 / (1 + ratio): 1:1 needs better than 50%, 1:2 needs above 33%, 1:3 needs above 25%, and 1:0.5 needs to be right two-thirds of the time just to stand still.
That last case explains most blown accounts. Taking small profits quickly and letting losers run inverts the ratio without anyone deciding to do it, and once the required win rate passes 70% no amount of good analysis rescues the strategy. Costs make it worse: spread, commission and swap all come out of the reward side, so a 1:2 on paper is often 1:1.7 in reality.
A 1:10 target that price never reaches is a 100% loss rate. The ratio only counts if the reward level is somewhere the market plausibly trades within the timeframe of the idea — inside the average range for that session, before the next major level, and not on the far side of a news release. Stretching the target to make the ratio look good is the most common way traders sabotage an otherwise sound plan.
The honest method is to place the invalidation where the idea genuinely fails — beyond the structure, not at a round number — then find the nearest realistic target and see what ratio falls out. If it is below 1:1.5, the setup usually is not worth taking, and no amount of moving the stop closer changes that.
Decide the money at risk first: a fixed small percentage of the account, typically 1% or less while learning. Position size is then risk amount divided by the stop distance in price, converted through the instrument's value per point. The ratio tells you whether the trade is worth taking; the size decides whether a losing streak is survivable.
Safabot's free calculators do the conversion for forex, crypto, stocks and futures, and its risk-to-reward calculator shows the break-even win rate alongside the ratio so the trade-off is visible before you commit.
Most consistently profitable approaches sit between 1:1.5 and 1:3 with an achievable target. Higher ratios are only better if price realistically reaches the level within the timeframe of the idea.
Above roughly 33% before costs. Spread, commission and swap raise that figure, so treat the mid-30s as the real floor.
Only when price has moved far enough that the original invalidation no longer describes the idea. Moving it early converts ordinary noise into a flat trade and quietly lowers your effective ratio.