Hogwarts Legacy – Arithmancy Door Locations

On your way through Hogwarts you probably came across some Arithmancy doors. Here’s a very simple guide to finding and solving them!

The Numbers… What Do They Mean?

It’s very easy! They go from 0 to 9 starting from the left side.

When you interact with the door it shows you two simple math problems:

Somewhere close are two blocks in the wall. You can interact with them to “roll” different pictures. The ? block corresponds to the upper one, the ?? block to the lower one. You can also see this when looking at the alignment of the triangles.

The numbers on the corners of the triangles need to add up to the numbers in the middle.

There’s no sound cue for the right solution, so once you are done just go back to the door and open it.


There are 12 doors in total, they are named after the nearest Floo point.

Greem Circle: Floo Point

Yellow/Orange Circle: ? and ?? blocks

Astronomy Wing (2 Doors, 1 Locked)

1. Charms Classroom

2. Transfiguration Classroom

Solution for left dial: Salamander (6)

Solution for right dial: Runespoor (3)

From the Transfiguration Classroom, turn around and take the doors on the left, then run up the stairs and go through a locked door. At the end of this cobweb-strewn hallway will be another puzzle.

The Grand Staircase (3 Doors)

1. Grand Staircase

The ?? block is directly next to the Floo point, the door and the ? block are up the stairs

2. Grand Staircase

Go up the Spiral staircase until you reach the door. ?? is right across from the door on the middle column.

3. Ravenclaw Common Room

The Great Hall (1 Door)

1. Great Hall

Library Annex (5 Doors, 1 Locked)

1. Divination Classrom

2. & 3. Divination Classrom

After heading through door six and following the corridor you get to the Arithmancy classroom, which has two doors in it.

4. Potions Classroom

5. Potions Classroom

Solution for left dial: Acromantula (8)

Solution for right dial: Runespoor (3)

After heading to the Potions Classroom Floo Flame, turn around and go back into the hall, where you’ll find this door directly in front of you.

South Wing (1 Door, 1 Locked)

1. Faculty Tower

Solution for left dial: Demiguise (0)

Solution for right dial: Hydra (9)

Head up into the Prefect Tower to get this door. Note that you’ll need to be invisible in order to avoid being caught, so use Evanesco or an Invisibility Potion.

Volodymyr Azimoff
About Volodymyr Azimoff 13317 Articles
I love games and I live games. Video games are my passion, my hobby and my job. My experience with games started back in 1994 with the Metal Mutant game on ZX Spectrum computer. And since then, I’ve been playing on anything from consoles, to mobile devices. My first official job in the game industry started back in 2005, and I'm still doing what I love to do.

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