Stable automatic lot size calculation for MT5 on Windows and macOS — cTrader coming soon
No crashes. No recalculations. No platform lock-in.
Problems that affect consistency and execution quality
One miscalculation during fast execution can violate risk rules or blow account limits
Crashes during volatile markets break your consistency and force rushed decisions
Buying separate tools for different platforms adds friction and recurring expenses
Built by a trader who needed one stable lot sizing tool across all platforms — without crashes or workarounds. After years of frustration with unreliable calculators, this is the solution I wanted to exist: simple, stable, and platform-agnostic.
Three steps on MetaTrader 5
Define your risk percentage once in the indicator settings
Set your stop-loss level based on your technical analysis
The exact position size is computed in real-time, ready to trade
Built for professional traders who value reliability
Single purchase covers MT5 now. cTrader support is on the roadmap.
Works seamlessly across operating systems with no platform restrictions
Tested extensively during live market hours. No crashes during execution.
Automatic calculation eliminates manual steps and reduces decision latency
Maintain consistent risk percentage across all trades as required by most prop firms
Position size updates instantly as you adjust stop-loss. No lag during execution.
Full platform coverage with first-class support
| Platform | Windows | macOS |
|---|---|---|
MetaTrader 5 | ||
cTraderComing soon | — | — |
First-class support: Direct access to the developer who uses this tool daily.
No resellers. No outsourcing. Questions answered within 24 hours.
One license for all platforms. No hidden fees.
Costs less than one risk mistake
Try it risk-free
Best value - Save 26%
Includes MetaTrader 5. Works on Windows and macOS.
cTrader support is planned and not included at launch.
Stop calculating. Start trading with confidence.
Instant access. No setup complexity.