Risk Reward Calculator
Estimate the risk and potential reward of a trade before entering the market. This calculator helps traders evaluate risk-reward ratio, required win rate, profit factor, Kelly position sizing, and account risk.
Risk Reward Calculator: How to Calculate Risk, Reward, and Trading Edge
If you've ever entered a trade and wondered "Is this worth it?" — a Risk Reward Calculator is exactly what you need.
This tool helps traders evaluate any trade setup before clicking "buy" or "sell." Instead of guessing, you get real numbers: how much you could lose, how much you could gain, and whether the trade is worth taking in the first place.
In this guide, we'll walk you through everything — from the basics of the risk reward ratio to advanced metrics like Kelly Criterion and Risk of Ruin.
What Is a Risk Reward Ratio?
The risk reward ratio compares how much you're risking on a trade versus how much you stand to gain.
It answers one simple question:
"For every dollar I risk, how many dollars could I make?"
Example:
| Parameter | Value |
|---|---|
| Entry Price | $100 |
| Stop Loss | $95 |
| Take Profit | $120 |
| Risk | $5 |
| Reward | $20 |
| Risk Reward Ratio | 1 : 4 |
A 1:4 ratio means you risk $1 to potentially earn $4. The higher this ratio, the better your trading setup.
Risk Reward Ratio Formula
Risk = Entry Price − Stop Loss
Reward = Take Profit − Entry Price
Risk Reward Ratio = Reward ÷ Risk
Practical example:
- Entry Price = $200
- Stop Loss = $190
- Take Profit = $240
→ Risk = $10 | Reward = $40 → Ratio = 1:4
Why Risk Reward Matters More Than Win Rate
Here's something most beginners get wrong: you don't need to win most of your trades to be profitable.
What matters is the quality of your wins compared to your losses.
| Trader | Win Rate | Risk Reward | Result |
|---|---|---|---|
| Trader A | 70% | 1:1 | Moderate profits |
| Trader B | 40% | 1:3 | Potentially more profitable |
Trader B wins fewer trades — but each win is 3x bigger than each loss. Over time, that math works in their favor.
This is why professional traders obsess over risk reward, not just win rates.
How to Use a Risk Reward Calculator
- Enter your Entry Price — the price where you plan to open the trade
- Enter your Stop Loss — the price where you'd exit if the trade goes wrong
- Enter your Take Profit — your target exit price if the trade goes right
- Enter your Position Size — how many units or contracts you're trading
- Enter your Account Size & Win Rate — used to calculate advanced metrics
- Click Calculate — get your full trade analysis instantly
Key Metrics the Calculator Provides
Risk per Unit
How much you lose per unit if stop loss is hit.
Example: Entry $100, Stop Loss $95 → Risk = $5/unit
Reward per Unit
How much you gain per unit if take profit is reached.
Example: Entry $100, Take Profit $120 → Reward = $20/unit
Break-Even Win Rate
The minimum win rate needed to avoid losing money.
Break-Even Win Rate = Risk ÷ (Risk + Reward)
Example: Risk $5, Reward $20 → Break-even = 20%
This means you only need to win 1 in 5 trades to break even.
Profit Factor
How much gross profit your strategy generates per dollar lost.
Profit Factor = Gross Profit ÷ Gross Loss
| Profit Factor | What It Means |
|---|---|
| Below 1.0 | Losing strategy |
| 1.0 – 1.5 | Weak |
| 1.5 – 2.0 | Good |
| Above 2.0 | Strong |
Trade Expectancy
The average expected profit per trade over time.
Expectancy = (Win Rate × Reward) − (Loss Rate × Risk)
A positive expectancy means your strategy is profitable long-term.
Trade Edge
Measures the statistical strength of your trading advantage. A higher edge means a more robust strategy.
Kelly Criterion
Estimates the optimal position size to maximize long-term account growth while managing risk.
Risk of Ruin
The probability of losing your entire account. It's influenced by:
- Your win rate
- Your risk per trade
- Your account size
Keeping risk below 1–2% per trade dramatically lowers this number — which is exactly why professional traders follow strict position sizing rules.
Real-World Example
| Parameter | Value |
|---|---|
| Entry Price | $100 |
| Stop Loss | $95 |
| Take Profit | $115 |
| Position Size | 10 units |
Results:
| Metric | Result |
|---|---|
| Risk per Unit | $5 |
| Reward per Unit | $15 |
| Risk Reward Ratio | 1 : 3 |
| Break-Even Win Rate | 25% |
This trader only needs to be right 1 in 4 trades to stay profitable — a very manageable threshold.
What Is a Good Risk Reward Ratio?
| Ratio | Assessment |
|---|---|
| 1:1 | Low — barely worth the risk |
| 1:2 | Acceptable — minimum recommended |
| 1:3 | Good — solid setup |
| 1:4+ | Excellent — high-quality trade |
Most experienced traders won't enter a trade unless the setup offers at least a 1:2 ratio.
Core Risk Management Rules Every Trader Should Follow
The 1% Rule
Never risk more than 1% of your total account on a single trade. This protects you from wiping out during a losing streak.
The 2% Rule
Some traders extend this to 2%, especially in more volatile markets — but never more.
Position Sizing
Adjust how many units you trade based on your stop loss distance and account size — not just gut feeling.
Diversification
Don't put all your capital into one trade or one market. Spread risk across multiple setups.
Frequently Asked Questions
What is a good risk reward ratio for beginners?
Start with a minimum of 1:2. As you gain experience, aim for 1:3 or higher.
Can you be profitable with a 40% win rate?
Yes — if your average win is at least 2x your average loss, a 40% win rate can be very profitable.
Does a great risk reward ratio guarantee profits?
No strategy guarantees profits. But a strong ratio significantly improves your odds of long-term success.
How often should I use a risk reward calculator?
Before every trade. It takes 30 seconds and removes emotional decision-making from the equation.
Final Thoughts
Trading without analyzing risk is like driving without a seatbelt — you might be fine, but the consequences of being wrong are severe.
A Risk Reward Calculator gives you clarity before you enter the market. It helps you spot high-quality setups, avoid bad trades, and build the kind of disciplined habits that separate profitable traders from the rest.
Whether you trade forex, crypto, stocks, or futures — consistently applying risk reward analysis is one of the simplest ways to improve your results.
Use the calculator before your next trade. Your future self will thank you.
Explore our complete toolkit inside All Tools and trade smarter today.