How Much RAM Does a Minecraft Server Need? (2026 Table)

A Minecraft: Java Edition server needs about 2 GB of RAM for vanilla or Paper with up to 5 friends, 4 GB for a Paper server with plugins and 10 to 25 players, and 8 GB or more for modpacks. Big modpacks with a crowd want 12 GB. What eats memory is mods, loaded chunks and players, roughly in that order, so the server type matters more than the headcount.

Minecraft server RAM by player count and server type

Our plans are sized for 10, 25, 60 and 120 players on 2, 4, 8 and 12 GB. Those numbers assume Paper with a sensible plugin list. On a modpack, cut them hard: the same 8 GB that is sized for 60 players on Paper is what we suggest for about 15 players on a big pack like All the Mods.

What actually uses RAM on a Minecraft server?

Four things, and knowing which one you have tells you how much to buy:

• The server itself. A plain vanilla or Paper server with nobody online already needs most of a gigabyte once the spawn area is loaded.
• Loaded chunks. Every player loads a square of chunks around them. With view-distance=10 that is 21 by 21 chunks per player, and players spread across the map load separate areas. Ten players in one base cost far less than ten players exploring in ten directions.
• Mods. This is the big one. Each mod loads its own code, blocks, items and recipes at startup. A pack with a few hundred mods can use several GB before anyone joins.
• Entities and block entities. Mob farms, item piles, hoppers, chests and machines all live in memory while their chunks are loaded.

Plugins are cheap by comparison. EssentialsX, LuckPerms, CoreProtect and GriefPrevention together barely move the needle. Map plugins that render the world and plugins that load lots of extra worlds are the exceptions.

How much RAM for vanilla vs Paper vs modded?

Not sure which server software you want yet? Our Paper vs Spigot vs Purpur vs Fabric vs Forge comparison helps you pick before you size it.

Can a Minecraft server have too much RAM?

Yes, in the sense that it stops helping. Java only uses what it needs, and garbage collection on a huge heap can make pauses longer, not shorter. A Paper server for 8 friends on 16 GB runs the same as on 4 GB. If you have plenty of RAM free and the server still lags, the problem is CPU time per tick, not memory. That is what the "Can't keep up!" message is about, and our guide on what Can't keep up means shows how to find the real cause with spark.

The flip side: too little RAM is easy to spot. Watch for any of these:

• java.lang.OutOfMemoryError: Java heap space in the console, followed by a crash.
• The server freezing for a second or two every few minutes while memory sits near the limit.
• A modpack that crashes during startup before it reaches "Done".

How do I check how much RAM my server is using?

On Paper, spark is built in. Run this in the console:

spark health

It shows memory use, TPS, MSPT and CPU. Look at memory after the server has been up for an hour with players on, not right after a restart. If it sits above 85 to 90 percent of the limit and you see the symptoms above, you need more. If it hovers at half, you do not.

On Fabric, Forge and NeoForge, install the spark mod from Modrinth or CurseForge for the same command. On GamezServers, the panel also shows live memory use next to the console.

How do I give a Minecraft server more RAM?

When you self host, you set it with the -Xmx flag in your start command, for example java -Xms4G -Xmx4G -jar server.jar nogui. Leave 1 to 2 GB of the machine's memory free for the operating system, and never set -Xmx higher than the RAM the machine actually has.

On a hosted server the plan decides it. On GamezServers you open Settings, pick a bigger plan and restart. The price difference is prorated for the rest of your billing period, and your world, plugins and mods stay where they are. You can also downgrade later if it turns out you overbought.

Does more RAM fix lag?

Only if you were short of RAM. Most lag on small servers comes from one place: too much work per tick. Lowering simulation-distance to 6, switching from vanilla to Paper and pregenerating the world with Chunky do more for a laggy 10 player server than doubling the memory. Our Minecraft server lag fix goes through those in order. Buy more RAM when you are adding a modpack, when players are spread far apart, or when spark shows memory at the ceiling.

FAQ

Is 2 GB enough for a Minecraft server?

For vanilla or Paper with up to about 5 friends, yes. It is not enough for modpacks, and it gets tight with lots of players exploring new chunks at the same time.

How much RAM do I need for 10 players?

4 GB on Paper with plugins is comfortable for 10. Vanilla with 10 people who stay near each other works on 2 GB but leaves little headroom. A modpack for 10 players wants 6 to 8 GB.

How much RAM for All the Mods 10?

Plan on 8 GB for a small group and 12 GB if you expect 10 or more players. Big NeoForge packs use several GB just to start.

Does RAM affect TPS?

Indirectly. With enough RAM, adding more does nothing for TPS. With too little, the garbage collector runs constantly and every pause shows up as lag. TPS is mostly about CPU and how much work each tick does.

Can I start small and upgrade later?

Yes. On GamezServers you can upgrade or downgrade any time from Settings, prorated, and nothing in your world changes. Starting on 4 GB and moving up if spark says so is a sensible plan.

Pick a plan that fits

If you are still unsure, start on the 4 GB Standard plan. It covers almost every Paper server for friends, and upgrading takes a restart. See the plans on Minecraft server hosting, or read choosing a plan. New customers get 50% off the first month, and you can split the bill with friends at checkout.