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Terminus Calculator

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About Terminus Calculator

Terminus Calculator is a free, fan-made tool that solves the Research Office math puzzle on the Terminus map in Call of Duty: Black Ops 6 Zombies.

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What Terminus Calculator Does

Terminus Calculator turns the three laptop symbols (X, Y and Z) into the three-number code that the Research Office computer accepts. The code reveals the location of the final DRI-11 Beamsmasher component, so players craft the Wonder Weapon without paying Dr. Peck 5,000 Essence.

  • The calculator applies the three fixed whiteboard equations: 2X + 11, (2Z + Y) − 5 and |Y + Z − X|.
  • A searchable table lists all 216 possible X, Y and Z combinations with their finished codes.
  • The tool is available in 6 languages: English, Español, Português, Français, Deutsch, Italiano.
  • The calculator is free, needs no account and works in any phone, tablet or PC browser.

Why Terminus Calculator Exists

The Terminus math puzzle must be solved during a live Zombies match, while zombies keep attacking. One wrong multiplication sends players back to the whiteboards. Terminus Calculator removes the arithmetic, so the code is ready in seconds and the Essence stays available for perks, weapons and Pack-a-Punch upgrades.

How the Calculator's Accuracy Is Checked

  • The three equations come from the right whiteboard in the Research Office. The equations are identical in every match and on every platform.
  • The six symbol values (0, 10, 11, 20, 21 and 22) come from the left whiteboard grid, where the row number is the first digit and the column number is the second digit.
  • The calculator and the 216-code table run on the same formula code, so both always show the same result for the same inputs.
  • The worked example on the home page (X = 20, Y = 11, Z = 10 → 51, 26, 01) is written out step by step, so anyone can verify it by hand.

Game updates can change Zombies quests. When an update changes the Terminus puzzle, the calculator and the guide are updated, and the “Last updated” date on each page changes with them.

Independence

Terminus Calculator is an independent community project. It is not affiliated with, endorsed by or sponsored by Activision, Treyarch or any other Call of Duty studio. Call of Duty® and Black Ops® are trademarks of Activision Publishing, Inc.; game names and symbols appear on this site only to identify the puzzle the tool solves.

Corrections and Feedback

Report a wrong code, a translation error or a broken page through the contact page. Every report is read, and confirmed errors are fixed.