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How much RAM does your Minecraft server need?

A practical guide to sizing RAM for survival servers, plugin networks and modpacks, and how that maps to our Dirt to Netherite plans.

5 min read • Updated October 16, 2026

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The short answer

Most servers need less RAM than people expect, and giving a server far more than it needs does not make it faster. Use the table below as a starting point, then fine-tune with the plan finder.

Your setupTypical RAMPlan to start with
Small server for friends (up to about 5 players), vanilla or a few plugins2 GBDirt
Survival server, around 10 players, a dozen plugins4 GBStone
Community server, 20 to 40 players, minigames and plugins8 GBIron
Light modpack (around 40 mods)8 GBIron
Heavy modpack (150 to 250 mods)16 GBRedstone
Large network, 100+ players16 GB or moreRedstone, Gold and up

These are starting points

Every server is different. A server with a few heavy plugins can need more than a bigger server with simple ones. The plan finder on our Minecraft page does the maths for your exact setup.

What actually uses RAM

RAM use comes from a handful of things. As rough averages:

  • The server itself: about 1 GB for Vanilla, Paper, Purpur and Fabric, and about 1.5 GB for Forge and NeoForge. Bedrock is lighter, at around 0.75 GB.
  • Players: roughly 100 MB per active player, because the server keeps the chunks and entities around each player loaded.
  • Mods: about 40 MB per mod on average. Large content mods use much more than small utility mods.
  • Plugins: light plugins (chat, homes, permissions) use around 30 MB each, medium plugins (economy, claims, anti-cheat) around 100 MB, and heavy plugins (map renderers, world generators) can use 250 MB or more.
  • Your world: a higher view distance means more chunks in memory for every player.

Adding these up for a typical survival server (10 players, 8 light plugins, 2 medium plugins) comes to roughly 2.5 GB. With headroom, that lands on the 4 GB Stone plan.

Why you need headroom

Java manages memory automatically, and it needs spare room to do that without stalling the game. A server that sits at 95% memory use spends a lot of time cleaning up, and players feel it as short freezes.

As a rule, size your RAM so the server normally uses around 60 to 80% of it. Our plan finder adds a 25% buffer on top of the raw estimate for exactly this reason.

More is not always better

Buying a much bigger plan than you need will not fix lag that comes from the CPU or from a heavy plugin. See How to fix lag and low TPS to find the real cause.

RAM is only half the story

Minecraft does most of its work on one main thread, so a fast CPU matters as much as memory. Every plan includes a CPU allocation that grows with the plan, from 100% on Dirt to 700% on Netherite.

PlanRAMCPUStorage
Dirt2 GB100%10 GB SSD
Stone4 GB200%20 GB SSD
Iron8 GB300%30 GB SSD
Redstone16 GB400%40 GB SSD
Gold32 GB450%40 GB SSD
Emerald48 GB500%50 GB SSD
Netherite64 GB700%60 GB SSD

Busy servers with many players, big modpacks or lots of entities are CPU heavy. If you expect that, lean towards a larger plan even if the RAM estimate looks low.

Get an exact recommendation

  1. Open the plan finder on the Minecraft page.
  2. Choose your server software and version, or start from a preset such as Survival or Heavy modpack.
  3. Set your expected players, mods and plugins.
  4. Read the recommended plan and the RAM estimate, then pick the tier (Budget or Premium) that suits you.

Not sure about your numbers? Ask in our Discord and we will help you size it.

Still stuck?

Our team is online 24/7 on Discord and usually replies within minutes.