ValheimRAM Calculator

Size your Valheim dedicated server in seconds. Valheim's memory is driven by how much world you have explored and how much you have built, not just your player count, so this sizes on all three.

Server Configuration

Players 4

21020

Valheim's own co-op target is 10. Physgun plans do not cap slots, so higher counts are sized here rather than blocked.

World Exploration

Every zone you sail or walk through is written into the world save and stays there. An old world costs memory even when nobody is standing in it.

Build Density

Each placed piece is a networked object the server tracks forever. Build density is the single biggest lever on a long-running Valheim world.

Mods (BepInEx)

Auto-restart Interval Every 12h

Zones stay cached in memory after players leave them, so a long-running server creeps upward. A scheduled restart releases that cache, which lowers the headroom you need to buy.

Physgun Optimizations In-house tuning and scheduled auto-restarts that trim memory overhead and keep zone caching under control. Included on every Physgun Valheim server.

Recommended RAM

3GB

Recommended CPU

45%

Where the memory goes

Server baseline

1.60

Players (4)

0.52

World data (Fresh)

0.40

Builds (Modest)

0.30

Mods (Vanilla)

0.00

Physgun optimizations

-0.28

Steady state after a restart2.54 GB

Uptime headroom (every 12h)0.32 GB

Recommended Physgun plan

Viking

Best for a small viking squad

$10.87/mo

OC Ryzen 9 7900X [Up to 4 Cores]
DDR5 Memory [Up to 16GB]
NVMe Storage

Every Valheim plan ships the same 16GB of DDR5 and NVMe storage, so the tiers differ by CPU allocation and crew size rather than by RAM. The figure above is what your world will actually use.

How accurate is this
Valheim RAM calculator
?

Most Valheim sizing advice multiplies a flat number by your player count, which is the one input that matters least. A Valheim server holds the whole saved world in memory, so what actually fills it is how many zones you have explored and how many pieces you have placed. Every structure is a networked object the server keeps tracking long after you log off.

That is why a two-player world that has been running for a year can outweigh a ten-player world started last week. This calculator models world data, build density, mod overhead and uptime separately, then sizes against the footprint Physgun actually allocates after our tuning.

No caps

Player slots, never metered

16GB

DDR5 on every plan

7900X

Overclocked Ryzen 9 or better

A Valheim world hosted on a Physgun dedicated server

FAQ · Frequently. Asked. Questions.

Still unsure how to size your Valheim server? Check out the Physgun Knowledge Base, or hop into the Physgun Discord and our team will help you dial it in.

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A fresh world with a few friends runs comfortably in about 2GB to 3GB. An established world with several outposts sits closer to 4GB to 6GB, and a heavily sailed world with megabases and mods can pass 8GB. Every Physgun Valheim plan ships with up to 16GB of DDR5, so the calculator's job is telling you which tier your world actually needs rather than whether you have enough memory.