Free tool

Ad budget calculator.

Works both ways. Put in a budget and see the customers, leads and revenue it should buy — or put in a goal and see the budget you need to hit it. Private, free, no account.

Done-for-you

Want a real budget plan for your business?

Tell us your industry and area and we’ll send you realistic benchmarks for your market — and a free plan for the budget it takes to hit your goal. No obligation.

How much should you spend on ads?

There’s no universal number — the right budget is the one that hits your goal at a cost you can afford. The way to find it is to walk the funnel, in whichever direction you already have a number for.

Start from a budget → see the result

If you know what you can spend, the calculator works forward:

  1. Clicks = budget ÷ cost-per-click
  2. Leads = clicks × landing-page conversion rate
  3. Customers = leads × close rate

Start from a goal → see the budget

If you know the outcome you want — say, ten new customers a month — the calculator runs the same funnel in reverse to tell you the budget it takes:

  1. Leads needed = target customers ÷ close rate
  2. Clicks needed = leads ÷ conversion rate
  3. Budget = clicks × cost-per-click

The two biggest levers on both sides are your conversion rate and your close rate. Improve either and the same budget produces more customers — or the same goal costs less to reach. Once you know the budget, our Google Ads ROI calculator and Meta ads ROI calculator show the return side in detail.