RAM for a cPanel Server Server
cPanel & WHM with Apache, PHP, MariaDB and mail scanning. That needs about 5.63 GB; a 8 GB plan leaves room to spare. Adjust it below.
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Operating System
Web Server
Choose a plan with
Estimated use 5.63 GB, plus 25% headroom
Where It Goes
Linux300 MB
Apache150 MB
PHP-FPM (16 workers)960 MB
Database1.29 GB
cPanel & WHM1.5 GB
Mail and ClamAV1.46 GB
VPS RAM Calculator
Memory for cPanel Server
Linux300 MB
Apache150 MB
PHP-FPM (16 workers)960 MB
Database1.29 GB
cPanel & WHM1.5 GB
Mail and ClamAV1.46 GB
Plan to Choose8 GB
cPanel & WHM with Apache, PHP, MariaDB and mail scanning.
Figures are typical; check real use with free -h and htop after a week of normal traffic, and resize if the server swaps.
Questions
How much RAM does a cpanel server server need?
About 5.63 GB for the set-up described; choose 8 GB to leave headroom.
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