# Compare the cost

Lesson 3 of [Plan an alcohol-free outing](https://soberbars.fyi/academy/plan-an-alcohol-free-outing.md), 12 minutes.

Sober Bars has a free tool called the zero-proof night out cost. It compares a night on cocktails with the same night on zero-proof drinks. How the tool works You enter four numbers: drinks per night, your usual cocktail price, a zero-proof drink price and nights out per month. The tool multiplies d…

The rest of this lesson is for learners enrolled in the course. [See how Plan an alcohol-free outing works](https://soberbars.fyi/academy/plan-an-alcohol-free-outing.md).

Also on the [web page](https://soberbars.fyi/academy/plan-an-alcohol-free-outing/compare-the-cost).