Prop Calculator Assistant: Precise MT5 trade math to protect funded accounts

This review in 2026 examines Prop Calculator Assistant performance and provides analysis of logged trades across live challenge attempts and funded account management. Prop Calculator Assistant is purpose-built for MT5 and deliberately separates trade math from market prediction. In this review we analyzed verified broker logs, parameter snapshots, and drawdown charts to measure reductions in sizing errors and improvements in rule adherence. What makes Prop Calculator Assistant unique is its emphasis on precision and transparency. Nikolaos Panagis designed a visual panel that calculates exact lot sizes, pip value, and percentage risk in real time based on user-defined stops and account balance. The panel does not auto-open trades or attempt to forecast price action; instead it ingests proposed entry and stop levels and outputs tightly defined lot recommendations, equity exposure, and projected profit or loss. This approach reduces cognitive load and prevents common mistakes under the stress of funding challenges. The algorithm performs best in accounts with clear risk rules such as FTMO-style daily loss limits and overall drawdown caps. It handles both low-volatility and high-volatility environments by adjusting recommended lot sizes to maintain target risk percentages. Expected performance characteristics include fewer sizing errors, higher consistency in rule compliance, and improved survival rates during challenge attempts. For MT5 users, Prop Calculator Assistant provides auditable calculations and integrates cleanly with standard order ticket workflows, making it a practical utility for traders focused on disciplined risk management rather than automated signal generation.