# Set a Target Weight

Target weight lets you calculate the report from a desired total padding weight for the base size.

The control is available in the [Editor Interface](/en/using-pesipiuma/introduction/editor-interface.md) after source data has been imported and only for users with edit permissions.

## Enable target weight

1. Open the project editor.
2. In the size toolbar, enable **Target Weight**.
3. Enter the target value in grams in the **Target Weight (g)** field.
4. Press **Enter** or leave the field to save the value.

When target weight is enabled, Pesipiuma calculates report weights relative to the base size. Coefficients are shown as percentages because they represent the scaling used to reach the target weight.

## Disable target weight

To return to normal coefficient-based calculation, turn off the **Target Weight** switch.

When the switch is off, the target weight is saved as `0` and Pesipiuma no longer applies target-weight scaling to the report.

{% hint style="info" %}
Use `100` as the neutral coefficient value when you want a piece or section to follow the target-weight calculation without additional adjustment.

**Example:**

If the model needs a piece to stay lighter than the others, use a coefficient below `100`. If it needs to stay heavier, use a coefficient above `100`. Pesipiuma keeps those proportions while calculating the report from the target weight.
{% endhint %}

{% hint style="warning" %}
Target weight is relative to the base size. Check that the correct base size is selected before relying on the generated report.
{% endhint %}


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