The ideal risk per trade on a prop firm account is 0.5-1% of your account balance. On a 25K Apex account, this means risking $125-$250 per trade. Our risk calculator computes exact position sizes for any futures or forex instrument based on your account size, risk tolerance, and stop loss distance.
Manage your capital intelligently and respect prop firms drawdown rules
$10,000 max total loss
$5,000 max per day
500 units
1:2.0
10
5
Risk per trade ≤ 2%
Currently: 1%
RR Ratio ≥ 1:2
Currently: 1:2.0
Trades before DD ≥ 10
Currently: 10
Leverage ≤ 20x
Currently: 10x
Whether you're a beginner or experienced trader, our risk calculator helps you make informed decisions. Specifically designed for prop firms like Apex Trader Funding, Topstep and FundedNext, it instantly calculates your ideal position, risk exposure, and alerts you before rule violations.
It's simple: enter your capital, risk limits, and trade details. The tool does the rest. You immediately see if your setup is viable or needs adjustment. No more complex Excel calculations.
Don't let chance decide your success. With our calculator, every trade is optimized to maximize your gains while minimizing risks. Join the thousands of traders already using it to pass their challenges and maintain their funded accounts.
Enter your account size (the funded account balance, e.g., $50,000 for an Apex 50K), your risk per trade (typically 0.5-2% of your account), and your stop loss distance in ticks or pips.
The calculator instantly shows you the exact position size to use. For example, on a 50K Apex account risking 1% with a 10-tick stop on NQ ($5/tick), you should trade exactly 1 contract — risking $50 per trade. Going above this means you're overleveraged.
Why this matters for prop trading: Most prop firm failures come from incorrect position sizing, not bad entries. A single overleveraged trade can blow through your trailing drawdown and end your evaluation. Use this calculator before EVERY session.
Position Size tells you exactly how many contracts or lots to trade. Never round up — always round down to stay within your risk tolerance.
Risk Amount ($) shows the dollar value at risk if your stop loss is hit. This should never exceed your daily loss limit (if your firm has one). On firms like Apex with no daily loss limit, keep it under 2% of your remaining drawdown buffer.
Risk/Reward Ratio: If your R:R is below 1:1.5, consider widening your target or tightening your stop. Professional prop traders typically aim for 1:2 or higher.
Risking more than 2% per trade. On a $50K account with $2,500 trailing drawdown, a single 3% loss ($1,500) wipes 60% of your buffer. Stick to 0.5-1% during evaluations.
Not adjusting after losses. After 2 consecutive losses, cut your size in half. After 3, stop trading for the day. This prevents the revenge trading spiral.
Ignoring trailing drawdown mechanics. Your trailing drawdown follows your equity high-water mark. A $500 unrealized profit that you don't lock in still moves your drawdown threshold up.
Too many contracts too early. Start with minimum size until you're 30-40% to your profit target. Then gradually scale up. Never go full size on day one.
Forgetting commissions. NQ round-trip commissions are ~$4.18 per contract. On 10 trades/day with 2 contracts, that's $83.60 — a meaningful drag on a $50K account. Factor this into your risk calculations.
Deep dive: Read our complete Risk Management Guide for Prop Traders for advanced strategies.
Start at 0.5% risk on a new evaluation account. You can always increase later, but one early blowup can end your challenge before it starts. Most successful funded traders use 0.5-1% per trade.
Build a safety buffer first. Get to 50% of your profit target before increasing position size. This gives you room to absorb a losing streak without hitting your drawdown.
Use this calculator BEFORE every session. Pre-calculate your position sizes for the contracts you plan to trade. Write them down. This removes emotion from sizing decisions during live trading.
Different rules = different risk. Firms with no daily loss limit (Apex, Lucid) allow slightly more aggressive sizing. Firms with 5% daily limits (FTMO, Topstep) require tighter control. Adjust your parameters accordingly.
Everything you need to know to master risk management in prop trading
Enter your account size (10k to 300k$), max allowed drawdown (5-20%), and your daily loss limit (2-10%). These three parameters define your trading room according to your prop firm rules.
The tool recommends 1-2% maximum per trade. The color code guides you: green (≤2%) for conservative management, yellow (2-3%) for moderate, and red (>3%) for risky. Most pro traders stay under 2%.
The calculator automatically divides your risk amount by your stop loss distance. For example: with $1000 risk and a stop 2$ away, you get 500 units. Simple and precise.
Enter your entry price, stop loss and take profit in the dedicated fields. The tool instantly calculates the distance in points, the risk/reward ratio, and adjusts position size accordingly.
It's the ratio between your potential gain and maximum loss. A 1:2 ratio means you earn $2 for every $1 risked. The tool displays this ratio in real-time and recommends a minimum of 1:2.
Leverage multiplies your actual exposure. With 10x leverage and a position of 1000 units, you control 10,000 units. The tool displays both values for total transparency.
It's the number of consecutive losing trades before reaching your max drawdown. If the tool shows '10', you can lose 10 trades in a row before breach. Aim for minimum 20 for a good safety margin.
It's the maximum number of losing trades you can take in a day before reaching your daily limit. If it's less than 3, reduce your risk per trade.
The alert appears when your risk per trade exceeds 3%. It's a strong signal to reduce your exposure. Prop firms favor consistency, not big shots.
The pie chart shows three zones: green (secured capital), yellow (acceptable risk zone), red (daily limit). Ideally, 80% of your capital should stay in the green zone.
The green/red dots instantly validate if your parameters respect best practices: risk ≤2%, RR ≥2, trades before DD >10, and reasonable leverage.
Yes! Whether it's Apex Trader Funding, Topstep, FundedNext or others, simply adjust the parameters according to their specific rules (drawdown, daily loss, etc.).
In challenge, you can be slightly more aggressive (2% risk). In funded, stay conservative (1-1.5%) to protect your account long term.
Follow the tool's alerts, respect the displayed limits, and always check the number of trades before drawdown. If it's less than 15, reduce your risk.
Perfectly! For scalping, use 0.5-1% risk with tight stops. The tool will automatically calculate larger positions thanks to short stops.
Excellent too. With wider stops, the tool will automatically adjust for smaller positions. Aim for an RR of at least 1:3 in swing.
Use 1-1.5% risk, check that you have at least 5 trades before the daily limit, and maintain a minimum RR of 1:2.
Reduce your risk by half (0.5-1%) until back to balance. The tool allows you to simulate this approach by adjusting the risk slider.
Beyond 5% loss on your account, start reducing risk. The tool shows you exactly where you stand relative to your limits.
Always keep a buffer of at least 20 trades before DD (displayed in the tool). If this number drops below 15, it's the signal to reduce your exposure.
Widen your take profit or tighten your stop loss in the tool. See the impact on the ratio instantly. Aim for minimum 1:2, ideally 1:2.5 or more.
The tool calculates gross. Mentally deduct $5-10 per trade for commissions. On small accounts, this can significantly impact the real RR.
Enter your usual parameters and check: do you get alerts? Is the number of trades before DD sufficient? Is the RR acceptable? The tool validates instantly.
Yes, each parameter modification instantly recalculates all metrics. No need for a 'calculate' button.
Absolutely. The tool works in generic units. Whether it's pips, points or ticks, simply enter your price levels.
Parameters stay in memory during your session. For permanent saving, note your preferred configurations or take a screenshot.
Visual alerts and color codes create psychological guardrails. Red = stop. It's simple and effective to avoid emotional decisions.
The tool lets you free, but red alerts are there to remind you of the consequences. Look at how many trades before DD - it often puts things in perspective.
Calculate each position separately, then mentally add the total risk. Never exceed 5% total simultaneous exposure.
Yes! Change the parameters to see the impact. Test with different stops, different leverages, different risk percentages. It's an excellent learning tool.
Configure the exact challenge rules (DD, daily loss) and find the sweet spot: enough risk to reach the target, but with enough margin for bad days.
No, it's a guide to make informed decisions. Success depends on your execution, discipline and strategy. But respecting the tool's parameters drastically increases your chances.
Calculate your potential earnings with different prop firm profit splits.
Simulate prop firm challenges with Monte Carlo analysis.
Review of FTMO with 5% daily loss and 10% max drawdown limits.
Futures prop firm with no daily loss limits - simpler risk management.
Master all aspects of risk management for funded trading.
Strategies to manage risk effectively during evaluations.