TRADRILL / GUIDE / RISK MANAGEMENT
What Is the Risk/Reward Ratio? How to Calculate R:R (Beginner's Guide)
Written by DUOCODE TECHNOLOGYPublished and reviewed 8 min read
The risk/reward ratio compares how much you could lose on a trade to how much you are aiming to make. If you risk $1 to make $2, your ratio is 1:2. It is one of the simplest numbers in trading and one of the most useful, because it forces you to define the downside of a trade before you think about the upside. Defining that downside in advance is the whole point—the SEC's own glossary describes a stop order as an instruction that triggers once a set price is reached, which is how many traders cap the loss side of the ratio.[1]
This guide explains what the risk/reward ratio is, how to calculate it from your entry, stop-loss and target, and why it only tells half the story on its own—you have to combine it with how often you are right (your win rate). It is education only: no ratio guarantees a profit, and day trading can be very risky regardless of how carefully you plan. Before risking real money, you can rehearse setting stops and targets with virtual funds on Tradrill.[2]
Short answer
- The risk/reward ratio compares potential loss to potential gain—risking $1 to make $2 is 1:2.
- You calculate it from entry, stop-loss and target: risk is entry-to-stop, reward is entry-to-target.
- R:R only makes sense with your win rate—a good ratio can profit even when you are right less than half the time, and a poor ratio can lose even with a high win rate.
- Define your stop and target before you enter, and never move the stop just to avoid taking the loss.
What the risk/reward ratio means
The risk/reward ratio is simply the amount you stand to lose divided into the amount you are aiming to gain. If a trade could lose you $50 and you are targeting a $100 gain, the ratio is 1:2—one unit of risk for two units of reward. Traders often express the reward side as an 'R multiple', where 1R is the amount you risked: a target at 2R means you are aiming to make twice what you would lose if the stop is hit. Thinking in R keeps every trade on the same scale no matter the dollar size.[1]
The ratio does not predict which way the market will go. It only describes the shape of a single trade: how much room you are giving the position to go wrong versus how far you expect it to go right. A ratio on its own says nothing about whether you will actually reach the target, which is why it must always be paired with a realistic view of how often your trades work out. No ratio removes the underlying risk—the SEC and FINRA both stress that active trading can lead to rapid and substantial losses.[2] [3]
- Risk is what you lose if the trade goes against you and hits your stop.
- Reward is what you gain if the trade reaches your target.
- 1:2 means risking one unit to make two; a 2R target is twice the risked amount.
- The ratio describes one trade's shape—not the probability it works.
How to calculate R:R from entry, stop and target
To calculate the ratio you need three prices decided in advance: your entry, your stop-loss (where you accept the trade is wrong) and your target (where you plan to take the gain). Your risk per share is the distance from entry to stop; your reward per share is the distance from entry to target. Divide the reward distance by the risk distance and you have the ratio. A stop order, as the SEC describes it, is the instruction that closes the position once your risk price is reached—so the stop is what makes the risk side a real, defined number rather than a hope.[1]
Say you buy at $100, set a stop at $95 and a target at $110. Your risk is $5 per share and your reward is $10 per share, giving a 1:2 ratio, or a 2R target. Move the stop to $90 without moving the target and the ratio collapses to 1:1—you are now risking as much as you hope to make. This is why the stop and target belong in the plan before you enter: once you are in the trade, it is far harder to judge them honestly, and moving the stop away from price to avoid a loss quietly destroys the ratio you started with.[1]
Set the entry
Decide the price at which you would actually open the position, not a vague area.
Place the stop-loss
Choose the price that proves the trade wrong and defines your risk; a stop order triggers once that price is reached.
Set the target
Decide where you plan to take the gain—this defines the reward side.
Divide reward by risk
Entry-to-target distance divided by entry-to-stop distance is your ratio. Fix all three before entering.
Why R:R only works with your win rate
A ratio alone cannot tell you whether a strategy makes or loses money—you also need to know how often your trades win. The two combine into expectancy: roughly, your average win times your win rate, minus your average loss times your loss rate. This is why a trader can be right on fewer than half of trades and still come out ahead if the winners are large relative to the losers, and why a trader who wins most of the time can still lose overall if the occasional loss dwarfs the many small wins.[3]
The table below shows the breakeven win rate—the frequency at which winners just cover losers, before costs—for a few common ratios. A 1:1 trade needs to win more than half the time just to break even, while a 1:3 trade breaks even at just 25%. These figures ignore trading costs and slippage, which push the real breakeven higher, and they are arithmetic, not a promise: hitting a given win rate in the past is no assurance of repeating it. The CFTC specifically warns that hypothetical or simulated results have inherent limitations and do not represent actual trading.[4]
| Risk/reward ratio | Reward per unit of risk | Breakeven win rate |
|---|---|---|
| 1:1 | 1R | 50% |
| 1:2 | 2R | About 33% |
| 1:3 | 3R | 25% |
| 2:1 (poor) | 0.5R | About 67% |
These breakeven figures are arithmetic and ignore costs and slippage. They show what a ratio requires, not what any strategy will achieve—past or simulated win rates do not guarantee future results.
Common risk/reward mistakes beginners make
The most common mistake is entering without a defined stop or target at all, which leaves the ratio undefined and the loss open-ended. A close second is moving the stop further away as price approaches it—turning a planned 1:2 trade into a 1:1 or worse, and often into a much larger loss than intended. Chasing a high win rate for its own sake is another trap: cutting winners early and letting losers run produces a comforting string of small wins and a few large losses, which is exactly the profile that loses money over time.[3]
None of these mistakes are fixed by trading more or by using a 'better' ratio in isolation. The SEC warns that active and frequent trading can be extremely risky and lead to substantial losses, and no arrangement of entry, stop and target changes that underlying risk. The value of the ratio is discipline: it makes you decide, before you commit money, exactly how much you are willing to lose and what you are aiming for—and then hold yourself to it.[2]
- Entering with no stop or target leaves your risk undefined.
- Moving the stop to avoid a loss silently ruins the ratio you planned.
- Cutting winners early and letting losers run wrecks expectancy even with many small wins.
- A ratio is a planning tool, not a guarantee—the underlying risk stays.
Before you take a trade
Use this checklist to define your risk/reward before entering.
- I have set an entry, a stop-loss and a target before opening the trade.
- I have divided reward distance by risk distance to know my ratio.
- I know the win rate my ratio needs just to break even before costs.
- I will not move my stop away from price to avoid taking the loss.
- I understand no ratio guarantees a profit and that trading can lose money.
Frequently asked questions
- What is a risk/reward ratio in trading?
- It compares how much you could lose on a trade to how much you aim to gain. Risking $1 to make $2 is a 1:2 ratio. You calculate it from three prices set in advance—entry, stop-loss and target—where risk is the entry-to-stop distance and reward is the entry-to-target distance.
- What is a good risk/reward ratio?
- There is no single 'good' number, because a ratio only makes sense alongside your win rate. A 1:2 or 1:3 ratio needs a lower win rate to break even, but it is only useful if your trades realistically reach the target. No ratio guarantees a profit, and hypothetical results have inherent limitations, so treat any target win rate as arithmetic, not a promise.
- How do I calculate risk/reward from a chart?
- Pick your entry, your stop-loss and your target. Measure the distance from entry to stop (your risk) and from entry to target (your reward), then divide reward by risk. Buying at $100 with a $95 stop and $110 target is $5 risk versus $10 reward, or 1:2. A stop order closes the position once your risk price is reached.
- Can I be profitable with a low win rate?
- It is possible to net positive while winning fewer than half your trades if your winners are large relative to your losers—this is expectancy at work. The reverse is also true: a high win rate can still lose overall if the occasional loss is much bigger than the many small wins. Win rate and ratio must be considered together, and neither guarantees future results.
Related guides
- TRADRILL / GUIDE / RISK MANAGEMENTRisk Management for Beginner Traders: Size, Stops and DrawdownA beginner-friendly, non-signal routine for trading risk management: define risk tolerance, decide the loss before the entry, understand what a stop-loss can and cannot do, and rehearse position sizing in simulation.
- TRADRILL / GUIDE / RISK MANAGEMENTWhat Is a Stop-Loss Order and How to Set OneA stop-loss is a resting order that triggers once price reaches a set level, used to cap a loss. Learn how to set one, and how stop and stop-limit orders differ.
- TRADRILL / GUIDE / PRACTICE ROUTINEHow to Build a Trading PlanA step-by-step trading plan you can actually follow: set goals and risk tolerance, size risk capital, write a pre-trade checklist and per-trade rules, and rehearse it in a simulator before risking money.
- TRADRILL / GUIDE / TRADING DISCIPLINE7 Common Trading Mistakes Beginners Make (and How to Avoid Them)The most common beginner trading mistakes—no plan, overtrading, revenge trading, ignoring risk, misusing leverage—and practical, non-hype ways to avoid each.
Sources and further reading
Authoritative sources consulted for how stops, risk and simulated performance work in this guide. Accessed 4 August 2026.
- [1]U.S. SEC — Investor.gov: Stop Order (Glossary)
- [2]U.S. SEC — Investor.gov: Thinking of Day Trading? Know the Risks. (Director's Take)
- [3]FINRA: Rule 2270: Day-Trading Risk Disclosure Statement
- [4]U.S. Commodity Futures Trading Commission: CFTC Letter No. 01-60 — Rule 4.41 hypothetical-performance disclosures
Use the ratio to plan, not to predict
The risk/reward ratio is a discipline tool: it forces you to define your loss and your goal before money is on the line. Tradrill lets you rehearse setting stops and targets and reviewing your ratios with virtual funds—no trade signals, no auto-trading, and no promise that a practice result will repeat live.
Educational information only. Tradrill provides no trading signals, no auto-trading and no financial advice. Trading carries risk of loss; no risk/reward ratio guarantees a profit, and simulated results are not a promise of future or live performance.