Letter Value Calculator

This tool takes a text and calculates the value of its letters. Every sign which is not a-z or A-Z will be ignored. You can provide additional values in the "extra values" field. If you tick the "Include numeric values" field the numbers 0-9 are included with their adherent value.

You can also define own sign/ value pairs. Just type [sign]\=[value] into the "extra values" field.
Example: !:=100
Multiple extra values need to be seperated by a line break.
Example:
!:=100
?:=-20