Calculate futures contracts from $ Risk and stop loss (points) — use alongside TopstepX.
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Version
1.13.0
updated 17 Oct 2026
About Futures Position Size
Calculate exactly how many futures contracts to trade from your dollar risk and your stop loss in points.
Built for futures traders who use web trading platforms such as TopstepX: open the calculator in Chrome's side panel right next to your chart, type the stop-loss distance, and instantly see the contract size for every risk level.
FEATURES
• Contracts = $ Risk ÷ (stop loss points × $ per point + fee)
• Enter your stop in points — or type the entry and stop prices and the points are calculated for you (rounded to the tick size, long or short detected)
• Optional stop-loss buffer per table — extra points or % of the stop distance, with the exact stop price to place
• Several risk levels calculated at once (e.g. $100 / $300 / $500)
• 12 popular CME futures contracts built in (equity index, metals and energy, in mini and micro sizes) — or add your own contract with a custom $ per point
• Rounding you control: always round down (never exceed your risk) or round up when the fraction is above your own threshold (e.g. ≥ 0.5)
• Real dollar risk and % shown for every size — sizes above your risk are flagged in red
• Color-coded risk levels so you never read the wrong row — pick your own colors
• Mini ↔ micro suggestions, e.g. 0.6 NQ → 6 MNQ
• Round-trip fee per product — one click loads the TopstepX fee table
• Opens per tab with Alt+P — only on the tab where you need it
• Collapsible settings keep the panel compact while you trade
• Interface available in 7 languages
• Built-in quick guide
• Settings are saved automatically and synced with your Chrome profile
HOW TO USE
1. Click the toolbar icon or press Alt+P to open the side panel.
2. Pick a product and type your stop loss in points.
3. Read the number of contracts for each risk level and enter it in your platform.
PRIVACY
No account, no tracking, no data sent anywhere. The extension does not read or modify any website — it only calculates the numbers you type. Works offline.
SUPPORT THE DEVELOPER
This extension is free. If it helps your trading, you can support further development:
• PayPal: https://paypal.me/pumpmedia
• USDT (TRC20 / TRON network only): TR7w1Zb7AEy9SxwD7cH3LTvYQVNd4DNATj
DISCLAIMER
This is a calculation tool, not financial advice. Always double-check your order size before placing a trade. Contract specifications ($ per point) are provided for convenience — verify them with your broker or exchange. Not affiliated with, endorsed by, or sponsored by Topstep, TopstepX or CME Group. Product names are trademarks of their respective owners.
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