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Chat CalcMinecraft mod for 1.21.10

The *fastest* calculator around; built right into your chat; just type in and you'll see your answer!

client onlynewest supported 1.21.10Utility
Latest version
4.2.5
Minecraft
1.20.5 to 1.21.10
Java
Java 21+
Loader
Fabric
Licence
MPL-2.0
Downloads
356.8k
Updated
11 mo ago
Available on
Modrinth

Minecraft versions

Every version Chat Calc declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.10Fabric21+declared7 Oct 2025
1.21.9Fabric21+declared30 Sept 2025
1.21.8Fabric21+declared17 Jul 2025
1.21.7Fabric21+declared30 Jun 2025
1.21.6Fabric21+declared17 Jun 2025
1.21.5Fabric21+declared25 Mar 2025
1.21.4Fabric21+declared3 Dec 2024
1.21.3Fabric21+declared23 Oct 2024
1.21.2Fabric21+declared22 Oct 2024
1.21.1Fabric21+declared8 Aug 2024
1.21Fabric21+declared13 Jun 2024
1.20.6Fabric21+declared29 Apr 2024
1.20.5Fabric21+declared23 Apr 2024

Download

From Chat Calc’s own host. Nothing is re-hosted here.

4.2.5release15 Oct 2025

chatcalc-4.2.5.jar · 1.0 MB · for 1.21.10

Download latest
72f393bb784d…
Older versions17
  • 4.2.43 Oct 20251.21.91.0 MB5.4k downloadscd7e47c93159…Get
  • 4.2.33 Oct 20251.21.81.0 MB9.8k downloads4930b73d063b…Get
  • 4.2.23 Jul 20251.21.71.2 MB2.9k downloads7c6e4814c0a1…Get
  • 4.2.123 Jun 20251.21.61.2 MB1.7k downloads4cfe363f401f…Get
  • 4.2.023 Jun 20251.21.60.5 MB97 downloads1442599ad07c…Get
  • 4.1.1025 Mar 20251.20.5, 1.20.6, 1.21, 1.21.1, 1.21.2 +3 more0.1 MB86.8k downloadsc82612b39e6d…Get
  • 4.1.924 Dec 20241.20.5, 1.20.6, 1.21, 1.21.1, 1.21.2 +2 more0.1 MB11.0k downloadsffe9d74b01b8…Get
  • 4.1.85 Dec 20241.20.5, 1.20.6, 1.21, 1.21.1, 1.21.2 +2 more0.1 MB3.9k downloadsea1345b9a89e…Get
  • 4.1.729 Oct 20241.20.5, 1.20.6, 1.21, 1.21.1, 1.21.2 +1 more0.1 MB47.7k downloads01b1ffc507bb…Get
  • 4.1.62 Sept 20241.20.5, 1.20.6, 1.21, 1.21.10.1 MB20.9k downloadsce73fea7eeef…Get
  • 4.1.56 Aug 20241.20.5, 1.20.6, 1.21, 1.21.10.1 MB1.2k downloadsf77653557a29…Get
  • 4.1.425 Jul 20241.20.5, 1.20.6, 1.210.1 MB1.5k downloads1bea4a488a04…Get
  • 4.1.318 Jul 20241.20.5, 1.20.6, 1.210.1 MB329 downloads381644bb8beb…Get
  • 4.1.217 Jun 20241.20.5, 1.20.6, 1.210.1 MB1.4k downloadsbeb19cf5755c…Get
  • 4.1.114 Jun 20241.20.5, 1.20.6, 1.210.1 MB270 downloadsb0d684f1cd0f…Get
  • 4.1.013 Jun 20241.20.5, 1.20.60.1 MB117 downloads2e109611ec00…Get
  • 4.0.016 May 20241.20.5, 1.20.60.1 MB320 downloadsad478d628a6d…Get

Frequently asked

Does Chat Calc work on Minecraft 1.21.10?

Yes. 1.21.10 is the newest Minecraft version Chat Calc declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Which Minecraft versions does Chat Calc support?

Everything the author has declared, from 1.20.5 up to 1.21.10. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install Chat Calc on the client or the server?

The client only. There is nothing to install on the server side. That is the author's declared design, not a guarantee for every server: one running anti-cheat or missing a counterpart mod can still object.

Which platform or loader does Chat Calc support?

Fabric. A build for one platform or loader will not necessarily load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for Chat Calc?

On the newest Minecraft version it supports, Java 21 or newer. The requirement comes from the Minecraft version you run rather than from the mod itself, so on an older supported Minecraft the answer is that version's Java, not this one.

What licence is Chat Calc under?

MPL-2.0, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.

How do I install Chat Calc?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod and Minecraft all have to be on the same version, which is the usual reason a mod does not appear in game.

Where do I download Chat Calc safely?

Start with the author's page on Modrinth, which is where the data here is synced from. MCReference does not host or repackage files. The download link goes to the source recorded for that release; verify the publisher, filename and checksum before running it.

Works on the same versions

Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.

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Last checked 2 mo ago against Modrinth. We do not host files and we do not republish descriptions; every download link points at the author’s own release.

Is this information wrong or missing something? .