---
title: What is the actual usable RAM after OS installation?
description: Usable RAM matches your plan’s allocation minus minimal system overhead from the OS.
url: "https://ncxhost.com/docs/what-is-the-actual-usable-ram-after-os-installation/"
updated: "2025-12-09"
category: VPS / DEDICATED / VIRTUALIZATION
---

# What is the actual usable RAM after OS installation?

Usable RAM matches your plan’s allocation minus minimal system overhead from the OS.