PHP-FPM Calculator - Optimize PHP-FPM Configuration for Your Server
Generate optimal PHP-FPM configuration based on server RAM and application type. Calculate pm.max_children and spare servers with 18+ framework presets (WordPress, Laravel, Magento).
Key Features
- Calculate optimal pm.max_children
- Memory usage estimation
- 18+ framework presets
- Dynamic vs static mode recommendations
- Performance tuning suggestions
Use Cases
- WordPress performance optimization
- Laravel server tuning
- Magento configuration
- VPS resource optimization
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Login with GoogleGenerate optimal PHP-FPM configuration based on your server RAM and application type. Calculate pm.max_children, spare servers, and memory allocation with industry-standard formulas.
CMS Platforms
Frameworks
Lightweight Apps
Micro Frameworks
E-Commerce
API Servers
Custom / Other
Dynamic mode adapts the number of workers to traffic and suits most workloads.
Server RAM available to the instance.
Allocate for OS, database, cache, and other services.
Retain headroom to prevent out-of-memory issues.
Preset value for the selected app.
Preset value for the selected app.
🌟 Recommended VPS Provider
Onidel Cloud VPS
Perfect for: Web applications, databases, development, production workloads
This calculator estimates safe PHP-FPM pool settings using a buffer and safety factor so that your workers stay within available memory. Adjust the inputs to match your environment and review warnings before applying changes.
Formula: Usable RAM = (Total RAM - Reserved RAM) × (1 - buffer%). Max Children = floor(Usable RAM / Average Process MB) × safety factor. Expected Usage = Max Children × Average Process MB. Safety Margin = Usable RAM - Expected Usage.