How to change ram allocation minecraft
Emma Payne
Published Mar 24, 2026

Click on the Java/Minecraft. It will open the settings related to Minecraft. Under these settings, change the “Maximum Memory/RAM” according to your needs and hit “Save”. It will allocate Minecraft with the memory of your choice to …
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Then you should see a line of text like -Xmx1G. Change the 1 to the number of gigabytes of RAM that you’d like to allocate to Minecraft. At last, click the Save button to save the change. After that, Minecraft will use your allocated amount of RAM for the profile you selected.
MethodTipsWarnings Check your computer’s available RAM. The amount of available RAM will dictate how much memory you can allocate to Minecraft. To check RAM: Windows – Open Start, click the Settings gear, click System, click About, and look at the number next to “Installed RAM”. Mac – Open the Apple menu, click About This Mac, and look at the number to the right of the “Memory” headi…Update your Java program . Go to Java’s website at and …
Scroll your mouse over the “Minecraft” version that you want to allocate RAM to, then click the three dots on the right and select “Edit.” © Emma Witman/Insider You’ll have to reallocate RAM to …
You can allocate more ram to Minecraft server as it needs to satisfy its requirements. Method 1: Use the Default Launcher to Allocate More RAM to Minecraft server. Although originally it was not possible, the default Minecraft launcher has evolved over time and now you may increase the amount of RAM available to Minecraft.
Go to the “Installations” tab. Select the version of Minecraft you would like to change the RAM allocation to, and click on the 3 dots and click “Edit”. Click on “More options” on the bottom. Locate “JVM ARGUMENTS” and find “-Xmx2G”.
2GB RAM Example: java -Xmx2048M -Xms2048M -jar [your server file name].jar. You’ll notice all that’s changed is that we’ve added a few things in the middle of the original command. The next step is to substitute the [RAM in MB] parts with, as you may have guessed, the amount of RAM you want to allocate to your Minecraft server in megabytes.
Don’t worry, we’re only dealing with the first six characters! Change nothing but the fifth character, which should be a number followed by a G. That number indicates how much RAM is currently allocated to Minecraft. Simply delete this number and replace it with the amount of RAM (in Gigabytes) that you want to allocate to Minecraft.
So, if you already have 2GB of RAM allocated to Minecraft, it’ll say “Xmx2G”. To change the amount of RAM, simply replace the number. Save the changes and launch the game.
How do I allocate 8gb RAM to Minecraft? Launch the ATLauncher and click on the Settings tab (on the right-side menu pane).Click on the Java/Minecraft tab on the top navigation bar. …. Select the Maximum Memory/RAM drop-down selection and adjust it to your desired memory allocation using the arrows.
Allocate more RAM in Minecraft Launcher
- Check the available RAM on your PCRight click Windows Start menu and choose Settings.In the setting window,…
- Toggle on the JVM arguments switchStart the Minecraft Launcher by double-clicking the Minecraft icon on your PC.
- Adjust RAM for Minecraft
Related Questions
How do I allocate more RAM to Minecraft?
Emma Witman/Insider 2. Scroll your mouse over the “Minecraft” version that you want to allocate RAM to, then click the three dots on the right and select “Edit.” © Emma Witman/Insider You’ll have to reallocate RAM to each version of “Minecraft” individually.
How do I change memory allocation in Minecraft Java?
Click the three lines in the top-right corner, then Files, then Settings. CTRL + Comma will direct you to the Settings menu from inside the launcher. Then, in Minecraft, scroll all the way down to the bottom. A pane titled Java Settings will be shown. Find and select the Allocated Memory slider.
How do I allocate more RAM to my Java application?
Scroll down to “Java Settings” where you’ll see “Allocated Memory” with a slider. From here, simply drag and drop the orange ball on the slider to your preferred RAM allocation. Any change will be automatically saved. Quick tip: CurseForge, most third-party launchers, measures RAM usage in megabytes (MB), not gigabytes (GB).
How do I increase the memory size of a Minecraft server?
Open ATLauncher. Click on “Settings” on the bottom right of the launcher. Locate “Maximum Memory/Ram”. Change it to your desired amount and click “Save”. Locate “Options” on the top right. Select the “Memory size to allocate to Minecraft” dropdown menu and select your desired amount.