Google Ads Budget Calculator
Estimate how much you should spend on Google Ads to achieve your lead, booking, or sales target.
Enter your target number of monthly conversions and your target cost per acquisition (CPA). The calculator will show your recommended monthly and daily ad budget instantly.
Results disclaimer:
This calculator provides an estimated advertising budget based on the values you enter. It does not guarantee leads, sales, revenue, or profitability. Actual Google Ads performance can vary due to competition, auction prices, campaign setup, targeting, landing-page quality, seasonality, and market demand.
Frequent Asked Questions
How much should I spend on Google Ads per day?
Divide your monthly advertising budget by 30.4. For example, a $3,000 monthly budget equals approximately $98.68 per day.
What is a target CPA?
Target CPA means target cost per acquisition. It is the amount you are willing to spend on advertising to generate one lead, booking, or customer.
Can I start Google Ads with a small budget?
Yes, but the budget must be large enough to generate useful data. If your average CPC is $5 and your daily budget is $10, you may only receive two clicks per day, which can make optimisation slow.
Does a higher budget guarantee better results?
No. A larger budget can generate more traffic, but results depend on targeting, keyword selection, ad quality, offer strength, landing-page experience, and conversion rate.
Should I use target CPA for leads or sales?
Use the conversion event that matters most to your business. For e-commerce, this is usually a completed purchase. For service businesses, it may be a qualified lead, booked appointment, or phone call.