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# Value Scale Types

The different types of scaling that you can perform on element values.

## Topics

### Getting the Options

[`kIOHIDValueScaleTypeCalibrated`](/documentation/HIDDriverKit/kIOHIDValueScaleTypeCalibrated)

An option to scale the value with respect to a set of calibration properties.

[`kIOHIDValueScaleTypePhysical`](/documentation/HIDDriverKit/kIOHIDValueScaleTypePhysical)

An option to scale the value with respect to the physical minimum and maximum values.

[`kIOHIDValueScaleTypeExponent`](/documentation/HIDDriverKit/kIOHIDValueScaleTypeExponent)

An option to scale the value with respect to the element’s unit exponent.


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