Campaign Budget Calculator
Plan a campaign budget from a target conversion count, using either CPC + conversion rate or a direct CPA — two clearly separated models.
Use CPC + conversion rate when you know (or want to estimate) how much a click costs and what share of clicks convert — this shows the intermediate click volume, not just a final number. Use CPA directly when you already have a reliable cost-per-acquisition figure and don't need the click-level breakdown. Both are planning estimates based on assumptions you supply — actual results depend on real auction dynamics, seasonality, and audience quality that no formula can predict.
Calculated entirely in your browser — nothing you enter here is sent to a server.
Plan a campaign budget from a target number of conversions, using either CPC + conversion rate (which also shows the click volume you'd need) or a direct CPA figure — two separate, clearly labeled models, never blended together.
Every number here is a planning estimate based on assumptions you supply — real auction dynamics, seasonality, and audience quality will affect actual results in ways no formula can predict.
How to use the Campaign Budget Calculator
- Choose a model: From CPC + conversion rate, or From CPA.
- Enter your Target conversions as a whole number: the sales, leads or sign-ups you want.
- For the CPC model, enter Expected CPC ($) and Expected conversion rate (%); for the CPA model, enter Expected CPA ($).
- Click Calculate to see the estimated budget, plus required clicks for the CPC model, with the formulas used.
- Click Reset to clear all fields.
Example: Budget for 50 leads
With From CPC + conversion rate, a target of 50 conversions, an expected CPC of 1.80 and a conversion rate of 4 gives 1,250 clicks required and $2,250 estimated budget (50 ÷ 0.04 = 1,250 clicks, × $1.80). Switching to From CPA with an expected CPA of 45 gives the same $2,250, because $1.80 ÷ 4% is a $45 CPA.
Questions about the Campaign Budget Calculator
- Should I enter the conversion rate as 4 or 0.04?
- Enter it as a percentage, so 4 means 4%. The rate must be greater than 0 and no more than 100, because this model assumes each click converts at most once.
- Why are required clicks rounded up?
- You can only buy whole clicks, so the click count is rounded up and the budget is priced on it. 50 conversions at a 3% conversion rate needs 1,666.67 clicks, shown as 1,667 clicks and $3,000.60 at a $1.80 CPC.
- Does it work out a daily budget?
- No. The result is the total for whatever period your target conversions cover. To get a daily figure, divide the estimated budget by the number of days the campaign will run.
- Which currency does it use?
- The labels and result use a $ sign, but the math does not depend on currency. If you enter CPC or CPA in another currency, read the budget in that same currency.