How Much RAM Does Your Minecraft Server Actually Need?
The real answer depends on your player count, mods, and world size — not whatever a random forum post told you.
The real answer depends on your player count, mods, and world size — not whatever a random forum post told you.
One of the most common questions we get from new customers is how much RAM they need. The honest answer is "it depends" — but that's not very useful on its own, so here's a more detailed breakdown of what actually consumes memory in a Minecraft server and how to size your plan accordingly.
The Java Virtual Machine itself consumes memory before Minecraft even starts. With a modern JVM and a Paper or Spigot server, you're looking at roughly 500MB–800MB just for the runtime overhead. That's your floor. Any RAM you allocate below about 1GB is going to be largely consumed before the game logic even starts.
Each connected player loads chunks around them, which increases memory usage. A rough rule of thumb for vanilla/Paper servers:
| Players | Recommended RAM | Notes |
|---|---|---|
| 1–10 | 2–4 GB | Small community or private server |
| 10–30 | 6–8 GB | Medium server, standard plugins |
| 30–60 | 10–12 GB | Busy server, plugin-heavy |
| 60+ | 14 GB+ | Large community, optimisation required |
The table above is for vanilla or lightly-modded servers. A modpack like All the Mods or a large Forge pack can easily double these requirements. Some modpacks explicitly state minimum server RAM requirements — take those seriously, and add a couple of GB on top of the stated minimum for headroom.
If your server is lagging at 20 players on 8GB, adding more RAM probably won't help. Lag is usually a CPU/TPS issue, not a memory issue. Check your timings before upgrading. We'd rather tell you that than sell you a plan you don't need.