The amount of money you should spend on Google Ads varies based on your business, industry, and goals. Some spend tens of thousands of dollars - and more - on Google Ads while others find success with much less. To know where you should start, consider a test budget to narrow down the keywords with the most conversions for your business.
Because you will need 100-200 clicks on a keyword to know if it converts, you can calculate a test budget using this formula: number of keywords x cost per click (CPC) x 100 or 200.