The Map utility allows for the remapping of values between a user-defined range of values. One could remap a value between 0 to 1 to become a value between 2 to 3.
The Map utility can be found under the Utility section of the Effects Browser.
Value to map:
This is the intake value for the utility
Minimum of value:
This is the intake minimum value for the utility
Maximum of value:
This is the intake maximum value for the utility
This is the new defined output minimum
This is the new defined output maximum
Here the new value is defined using the remapped min/max ranges.