Do math with input_number

Configuration
1

How can I do math with an input number. Like add one to it when a switch is turned on or Input boolean is turned on?

2

Simplest way would be to use a Service call:
Input number: Increment
You would need to setup the helper with the correct increment (step size)

3

As Charles noted the input_number.increment and input_number.decrement services are good for those basic functions. You can also use templates within an input_number.set_value service call to access other math functions.

    - alias:  Increase by 5
      service: input_number.set_value
      target:
        entity_id: input_number.x
      data:
        value: "{{ states('input_number.x') | float(0) + 5 }}"

    - alias:  Increase by 5 steps
      service: input_number.set_value
      target:
        entity_id: input_number.x
      data:
        value: >
          {{ states('input_number.x') | float(0) + 
          (5 * state_attr('input_number.x', 'step') ) }}
4

I used the increment thing but this actually works better for me because I can just stick another variable for how great the increment is which is super useful, thank you, didn’t know I can do that :slight_smile: