Google Ads Calculator

Daily Budget: —
Clicks Needed: —
Estimated CPA: —

CPA (Cost Per Acquisition): The cost of acquiring one lead or sale through your Google Ads campaign.

Clicks Needed: The total number of clicks required to achieve your desired leads/sales, based on your conversion rate.

How do you calculate your Google Ads?

Google Ads costs are calculated by estimating the daily budget needed to reach a target number of leads or sales based on three key inputs:

  1. Average CPC (Cost per Click) – how much you typically pay for one ad click
  2. Conversion Rate (%) – the percentage of visitors who take the desired action (e.g. fill out a form, make a purchase)
  3. Target number of leads or sales per day

The formula looks like this:

  • Clicks Needed = Leads ÷ (Conversion Rate ÷ 100)
  • Daily Budget = Clicks Needed × CPC
  • Estimated CPA (Cost Per Acquisition) = Daily Budget ÷ Leads

This helps to understand how much ad spend is required to hit your goals — and where optimising your CPC or conversion rate can have the biggest impact.