# Auto-scale your drawing

The Exaplan **Autoscaler** can automatically calculate the scale of your uploaded 2D floor plan (PDF/Image) to match the real-world dimensions in a 1:1 ratio. This eliminates the need for manual scaling with the controls (+/-) and ensures precise alignment.

Once a reference object measurement is defined (e.g. a known wall length or marker distance), the Autoscaler computes the required scale factor and updates the projection accordingly.

<figure><img src="/files/pxrRM5tXJ1ZCWEa5cet7" alt="" width="300"><figcaption></figcaption></figure>

### **Steps:**

1. Select the layer you would like to autoscale.
2. In the control options, choose "**Ref**" under the scaling controls.\ <img src="/files/MqgStjPUCNZBN7AABSle" alt="" data-size="original">
3. This will pop up the autoscaler preview window.
4. Click on any two points on the preview on the preview to define a reference distance
   1. You can drag each point **(A/B)** individually to fine tune.
   2. Hold the "**shift**" key to snap to axis.
   3. Use the to **mouse wheel** to zoom in/out and **right click** to pan (navigation).&#x20;
5. Type in the real-word distance (m, , in, ft)
6. Click **Apply**\
   The system recalculates and applies the correct scale immediately.&#x20;

<figure><img src="/files/rir1SqjMvbN061GkBx30" alt="" width="563"><figcaption></figcaption></figure>


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