Google Ads budget calculator
Estimate your required monthly Google Ads budget based on lead targets, conversion rate, and average cost per click.
Enter your numbers
Live results
Recommended monthly budget
$9,000.00
Required clicks
2000
Required impressions
57143
Estimated cost per lead
$75.00
What this calculator does
The Google Ads Budget Calculator helps agencies reverse-engineer monthly media spend from business goals. Instead of guessing a budget, you can start with lead or sales targets and model the cost needed to reach them. Enter your target conversions, landing page conversion rate, and average CPC to generate a recommended budget instantly. The tool also estimates required clicks and impressions, giving account managers a practical benchmark for campaign planning. Use it in onboarding calls, proposal decks, and budget review meetings where clients ask what spend level is needed to hit growth goals. By connecting performance assumptions to cost expectations, the calculator supports clearer planning and better expectation-setting from day one.
How to use this calculator
- 1
Set your target monthly leads or sales volume.
- 2
Enter average conversion rate, expected CPC, and click-through rate assumptions.
- 3
Review estimated clicks, impressions, and recommended monthly budget.
Why this matters for agencies
Budget planning errors create missed targets and difficult client conversations. A target-based budget model helps agencies align spend with outcomes, prevent underfunded campaigns, and justify investment with transparent assumptions.
Frequently asked questions
How much should I spend on Google Ads each month?
Your budget should be based on target leads, conversion rate, and CPC, not arbitrary percentages. This calculator helps model that relationship.
What if my conversion rate changes?
Small conversion-rate changes can materially impact required spend. Recalculate monthly using current landing page performance.
Does this calculator work for ecommerce and lead generation?
Yes. Replace target leads with target sales and use your real conversion rate assumptions to estimate spend.
Should I include management fees in this budget?
This tool estimates media spend. Add management fees separately when presenting total monthly investment to clients.
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