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Ad testing budget calculator
Size a planning budget from variants, a target CPA, and assumed purchases per variant. Spending this amount does not guarantee conversions or statistical certainty.
By Drizzle team
Ad testing budget calculator
Size a planning budget from variants, a target CPA, and assumed purchases per variant. Spending this amount does not guarantee conversions or statistical certainty.
How to use the result
The formula multiplies variants by target CPA and planned purchases per variant, then spreads that planning amount across days. The purchase count is an assumption, not a guarantee. This is a budget worksheet, not a sample-size calculation or instruction to spend through a failing campaign.
Keep the inputs and the decision together
Save the figures or brief you used with the result. For calculations, use the same currency, period, and event definitions. For creative drafts, verify the product facts and adapt the wording to the footage you can produce. These tools run locally in your browser and do not send your entered text to a generation API.
Continue your work
Use the model library for provider documentation, the glossary for measurement definitions, and Drizzle pricing for current plan details. If you are ready to make an asset, follow the first creative guide.