How Much RAM Does a Minecraft Server Need?

Short answer: a small vanilla or Paper server for 2–5 players runs well on 2 GB of RAM, and 5–10 players on 4 GB. Modded servers need more: 6–8 GB for a light modpack and 10 GB or more for a large one. RAM is rarely the only limit, though — CPU speed decides how smoothly the server runs once it has enough memory.

RAM recommendations by player count

These are typical starting points for Minecraft Java Edition. They assume default view distance and a normal survival world.

Treat these as a place to start, not a rule. Two servers with the same player count can need very different amounts of memory.

What uses a Minecraft server's RAM?

A Java server keeps everything that is currently active in memory:

• Loaded chunks. Every player keeps the area around them loaded. Players who spread out across the map load far more chunks than players who stay together.
• Entities. Mobs, item frames, dropped items, minecarts and animals. Large mob farms are one of the most common causes of high memory use.
• Plugins and mods. Each one adds its own data. Mods that add new blocks, dimensions or world generation add the most.
• The Java runtime itself. The server needs some headroom above what the world uses so garbage collection can work without pausing the game.

That is why player count alone is a rough guide: ten players in one base use much less memory than ten players exploring in ten directions.

Signs your server needs more RAM

• The server crashes with an OutOfMemoryError.
• The console shows long garbage-collection pauses.
• Lag spikes happen at regular intervals rather than when something specific happens in game.
• Memory use sits near the limit the whole time players are online.

If memory stays well below the limit but the server still lags, more RAM will not help. The cause is usually CPU — see Minecraft Server CPU: What Actually Matters.

How to use less RAM

• Use Paper (or Purpur) instead of the vanilla server. Paper is a drop-in replacement for vanilla with large performance improvements, and most plugin servers already use it.
• Lower view-distance and simulation-distance. Both default to 10 chunks. Setting simulation distance to 6–8 reduces load noticeably while players still see far.
• Pre-generate the world. Generating new chunks is expensive. A plugin such as Chunky can generate the map before players explore it.
• Limit entities. Cap mob farms and clear dropped items regularly.
• Don't over-allocate. Giving a small server far more memory than it uses does not make it faster.

Is more RAM always better?

No. Once a server has enough memory for its world, players and plugins, extra RAM sits unused. Performance then depends on the CPU's single-thread speed, the storage, and how the server is configured. Paying for 16 GB for a five-player vanilla server is wasted money.

Bedrock servers

Bedrock Dedicated Server is written in C++, not Java, and uses noticeably less memory. 1–2 GB is enough for most small Bedrock servers, and 4 GB covers larger groups.

Which Beacon plan fits?

Beacon's Minecraft plans are sized by RAM, and every plan includes NVMe storage, backups and DDoS protection:

You can upgrade or downgrade at any time, so it is fine to start small. See every plan's specs and current price on the facts page, or compare plans in the store.