Most losing trades don't fail because the wave count was wrong. They fail because the position was too big, the risk-reward didn't justify the entry, or the Fibonacci levels were never checked in the first place. These three free calculators handle that math for you, in seconds, before you click buy or sell.
No signup, no account, no data stored. Enter your numbers, get your answer, close the tab if you want. That's the whole idea.
Fibonacci Calculator — enter a swing high and low to get every retracement and extension level for your wave count, instantly.
Position Size Calculator — enter your account balance, risk tolerance, and stop loss to find exactly how many units to trade.
Risk/Reward Calculator — enter your entry, stop, and target to see your ratio and whether the trade is even worth taking.
Use them together. Find your Fibonacci levels first, use them to set your stop and target, then check the risk-reward before you size the position. That's the order professional traders actually follow, in that sequence, every time.
Fibonacci Retracement & Extension Calculator
Enter a swing high and low to get retracement and extension levels for your wave count.
| Retracement | Price Level |
|---|
| Extension | Price Level |
|---|
Educational tool only. Not financial advice. Extension targets at 261.8% and beyond are more common in high-volatility assets like crypto.
Position Size Calculator
Never risk more than you plan. Enter your account and trade details to find the right size.
| Price Risk per Unit | - |
| Position Size | - |
| Position Value | - |
This is a price-based calculation, so it works for stocks, crypto, indices, and futures directly. For forex, use your pair's price difference (not pips) for Entry and Stop Loss.
Risk / Reward Ratio Calculator
Check whether a setup is worth taking before you enter.
| Risk (price distance) | - |
| Reward (price distance) | - |
Every level above depends on the swing high and low you enter — get that wrong and the whole calculation shifts. If you'd rather work from a wave count that's already mapped out across 26+ instruments, forex to crypto to indices, updated daily, this is worth fourteen days of your time.
Start the 14-Day TrialAffiliate link — we may earn a commission if you sign up. Trial period, continues as a paid plan unless cancelled.
How to Use These Calculators Properly
Reading the Fibonacci levels
The 38.2% and 61.8% retracement levels matter most. In an Elliott Wave count, a Wave 2 or Wave 4 pullback that stalls near one of these two levels is a strong sign your count is on track. If price blows straight through 78.6% without reacting, treat that as a warning that your wave count, not just the trade, needs a second look. On the extension side, 161.8% is the minimum realistic Wave 3 or Wave 5 target; 261.8% and beyond show up more often in fast-moving assets like crypto than in slower ones like large-cap indices.
Sizing the position correctly
Professional traders typically cap risk at 1-2% of account balance per trade, not because bigger risk can't work, but because of how drawdown math behaves. Losing 20% of an account requires a 25% gain just to get back to even; lose 50%, and you need a 100% gain. Keeping risk small on any single trade is what keeps a string of losses from turning into a hole you can't climb out of. Enter your real account balance and an honest stop loss, not a hoped-for one, and let the calculator do the rest.
Judging the risk-reward ratio
A ratio below 1:1 means you're risking more than you stand to gain, rarely worth it. Most experienced traders won't take a setup below 1:2, and many hold out for 1:3 or better on lower-probability entries. The math matters here more than it feels like it should: at a 1:1 ratio you need to win over half your trades just to break even after costs, while at 1:3 you can be profitable winning barely a third of the time. A good risk-reward ratio forgives an imperfect win rate. A poor one doesn't.
Frequently Asked Questions
How much of my account should I risk per trade?
Most professional and prop-firm traders risk between 1% and 2% of their account on any single trade. Beginners are often better off starting closer to 1% until their wave-reading and stop placement have proven themselves over a real track record, not just a few lucky trades.
What counts as a good risk-reward ratio?
1:2 is the generally accepted minimum, meaning your potential reward is at least twice your risk. 1:3 or higher is considered strong, especially for counter-trend or lower-probability setups where you won't win as often.
Do these calculators work for crypto, forex, and stocks?
Yes. The Position Size and Risk/Reward calculators use price differences, so they work directly for stocks, crypto, indices, and futures. For forex, use the price difference between your entry and stop rather than pip count, and the math still holds.
Why did the Fibonacci calculator give me a negative extension level?
Deep extensions (261.8% and especially 423.6%) can fall below zero when the original swing is large relative to the asset's price. Treat a negative result as a sign that level isn't realistic for this particular swing, and lean on the 161.8% and 261.8% levels instead.
What's the difference between position size and lot size?
Position size is the raw number of units, shares, or coins you're trading. Lot size is forex-specific shorthand for standardized contract sizes (a standard lot is 100,000 units of the base currency). Our calculator gives you position size directly in units, which you can convert to lots if your broker's platform requires it.
Are these calculators really free?
Yes, completely. No signup, no account, no data stored on our end. Enter your numbers, get your answer, and close the tab whenever you're done.
If checking these numbers is becoming a habit before every trade, it might be worth letting a live wave count do that groundwork instead of building it from scratch each time — 26+ instruments tracked daily, so the swing points are already there when you open the chart.
Start the 14-Day TrialAffiliate link — we may earn a commission if you sign up. Trial period, continues as a paid plan unless cancelled.