Minecraft Server RAM Calculator
The best Minecraft server RAM calculator, that estimates how much RAM your server requires to work without crashing, based on players, plugins, and world size.
Minecraft server start.bat file
Use our script to automatically generate a start bat file for your Minecraft server, which helps optimizations and healthier tick rates. The script used is automatically calculated by our RAM resource calculator for Minecraft. This script is assisted by Aikar's Flags. It only works on the Paper jar.
How to use our Minecraft RAM calculator
To start calculating how much RAM your server will need, choose between the plugins you wish to add, and adjust the player count. If you require more precise estimates, you can also tweak the word count. It is an important metric, that helps server owners to shrink, or grow worlds, for players on the server.
Each plugin uses a different amount of RAM, so we calculated the average spending.
Currently, we have added 600+ plugins. If you want us to analyze and add any Minecraft plugins, please submit this form, and we will add your plugin with priority.
How much RAM do I need for a Minecraft server?
Based on individual needs, Minecraft servers require at least 2GB of RAM for versions under 1.12. Newer versions require at least 4GB of RAM assigned. With these statistics set, we have outlined the specifications you need to know for creating a Minecraft server.
Frequently Asked Questions by Minecraft Server Owners
Why is my Minecraft server crashing?
Minecraft servers often crash due to low amounts of RAM being allocated to the server jar file. If you are using Windows to host your Minecraft server, reserve at least 4GB of RAM for the server, and keep at least 4GB of RAM for your computer to avoid crashes. As Windows is resource-intensive, you should not allocate all of your RAM to your server. If you wish to allocate more RAM to your server, use a different OS such as Linux. It requires only 512MB of RAM to keep your system running smoothly.
Can my computer run a Minecraft server?
Any computer can run a Minecraft server, even the older ones. Our Minecraft server RAM calculator estimates how many players it can upkeep based on the number of players, plugins chosen to run, and world size.
Is 1 GB of RAM good for a Minecraft server?
If you are playing older versions of Minecraft like 1.12 and below, 1GB of RAM is good for a server. However, versions 1.13 and above require at least 4GB to power up and use your server.
Does a Minecraft server need a CPU?
Minecraft servers require a CPU to be installed to operate. A single-threaded CPU from the Intel Celeron brand could handle plenty of player traffic, as it is designed for such purposes. And since Minecraft doesn’t use multi-threaded CPUs, you can easily invest in almost any budget CPU, rather than buying a gaming one.
Why is my Minecraft server laggy?
Many Minecraft servers have lag issues. The most basic issues that cause server lag are lag machines, too many player interactions, low amounts of RAM allocated, or an unoptimized Minecraft server. Our RAM calculator aims to help you allocate enough precious resources to avoid lag. If your lag persists, and tick rates continuously drop, consider optimizing your server.
A great start would be moving to the Paper JAR, and using Aikar’s Flags for a smoother server experience.
Is 4GB RAM enough for a modded Minecraft server?
Modded Minecraft servers require more RAM than those using plugins. Using 4GB of RAM to run mods could keep your server playable. It strictly depends on what mods you wish to install, and the number of players connected at the same time.
The recommended starting RAM is between 4 and 6GB to keep your server in good health.