There is no single WordPress RAM number
A small brochure site and a busy WooCommerce store can both run WordPress while having completely different resource requirements. PHP workers, the database, caching, scheduled jobs, plugins and traffic all compete for memory.
Small websites
For a low-traffic business or portfolio site, a small server can be enough when the software stack is efficient and the database is modest. The important point is to leave operating-system and database headroom instead of allocating every megabyte to PHP.
Agency and content-heavy sites
Sites with page builders, many plugins, editorial workflows or several simultaneous administrators benefit from more memory. Multiple PHP workers and database caches can otherwise push the server into swapping or process termination during traffic spikes.
WooCommerce and transactional workloads
WooCommerce pages are more dynamic and often less cacheable than a simple content site. Product searches, carts, checkout, integrations and scheduled jobs increase both PHP and database activity. Start with more headroom and measure real usage before a campaign or seasonal peak.
Measure before and after resizing
Watch memory pressure, swap use, database behaviour and response times. More RAM can help when memory is genuinely constrained, but it will not fix slow external APIs, inefficient queries or a broken cache configuration.
CloudBalkan Cloud Servers can be resized as the workload changes, which is preferable to guessing a permanently oversized configuration on day one.