# Creating variables

**Variables**are the building blocks of your models. If you're a spreadsheet user, you can think of them a bit like spreadsheet cells. If you're a programmer, you can think of them as, well, variables.

You can define a variable using a

**formula**. Formulas let you work with numbers, ranges, and other variables. Here are some examples:`25`

: constant value of 25`(0 to 1) * MyVariable`

: the product of a range and another variable`if VariableA > 10 then 1 else 0`

: self explanatory`sample(3, 5)`

: either the value 3 or the value 5 (discrete distribution)

Note that Causal's syntax optimizes for human-readability and -writeability, i.e. you can enter $10,000 as $10k and Causal will understand.

Headcount and Average salary annual are both Variables

Last modified 1mo ago