{"id":23001,"date":"2026-07-08T11:21:28","date_gmt":"2026-07-08T11:21:28","guid":{"rendered":"https:\/\/xgamingserver.com\/blog\/how-to-allocate-more-ram-to-minecraft\/"},"modified":"2026-07-08T11:21:28","modified_gmt":"2026-07-08T11:21:28","slug":"how-to-allocate-more-ram-to-minecraft","status":"publish","type":"post","link":"https:\/\/xgamingserver.com\/blog\/how-to-allocate-more-ram-to-minecraft\/","title":{"rendered":"How to Allocate More RAM to Minecraft"},"content":{"rendered":"\n

Quick answer:<\/strong> You allocate more RAM to Minecraft by editing the JVM argument<\/strong> -Xmx<\/code> \u2014 in the launcher for your client, or in the startup command for a server. For example, -Xmx6G<\/code> gives Minecraft up to 6 GB. Here’s how to do it for both, and how much you actually need.<\/p>\n\n\n\n

Not enough RAM causes stutters, long chunk loading, and “Out of Memory” crashes \u2014 especially with modpacks. But over-allocating can hurt too. This guide covers the right way to set memory for the client and for a server, plus how to size it. Need a number fast? Use our free Minecraft RAM Calculator<\/a>.<\/p>\n\n\n\n

How to Allocate RAM to the Minecraft Client<\/h2>\n\n\n\n

In the official launcher:<\/p>\n\n\n\n

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  1. Open the Minecraft Launcher<\/strong> and go to the Installations<\/strong> tab.<\/li>\n
  2. Hover over your installation, click the three dots<\/strong>, and choose Edit<\/strong>.<\/li>\n
  3. Click More Options<\/strong> to reveal the JVM Arguments<\/strong> field.<\/li>\n
  4. Find the value -Xmx2G<\/code> (the default is usually 2 GB). Change the number \u2014 for example -Xmx6G<\/code> for 6 GB. Only change this first number; leave the rest of the arguments alone.<\/li>\n
  5. Click Save<\/strong> and launch. Modpacks from CurseForge\/Modrinth launchers have a simple RAM slider in their settings instead.<\/li>\n<\/ol>\n\n\n\n

    How to Allocate RAM to a Minecraft Server<\/h2>\n\n\n\n

    A server’s memory is set in its startup command<\/strong> with two flags: -Xmx<\/code> (maximum RAM) and -Xms<\/code> (starting RAM). A typical line looks like:<\/p>\n\n\n\n

    java -Xmx4G -Xms4G -jar server.jar nogui<\/code><\/pre>\n\n\n\n
    Setting -Xmx<\/code> and -Xms<\/code> to the same value<\/strong> (here 4 GB) is common for servers, so the JVM reserves it all up front. If you host with a provider, you usually don’t touch the command at all \u2014 your Minecraft server hosting<\/a> plan’s RAM is set by the plan you pick, and the panel handles the flags for you.<\/p>\n\n\n\n
    How Much RAM Do You Need?<\/h2>\n\n\n\n