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PPC Budget Calculator

Work out the monthly Google Ads budget you need to hit your lead or sales target, based on your conversion rate and average CPC.

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Enter your numbers

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£
Monthly budget needed
Clicks needed
Cost per conversion

How the budget maths works

Clicks needed = target ÷ conversion rate. Budget = clicks × average CPC. Want 30 leads at a 4% conversion rate and £2.50 CPC? You need 750 clicks ≈ £1,875/month.

The three levers

Your budget is driven by target volume, conversion rate and CPC. Improving conversion rate is usually the cheapest lever — it cuts the clicks (and spend) you need.

Frequently asked questions

How much should I spend on Google Ads?

Enough to buy the clicks your target requires at your conversion rate and CPC — this tool gives the figure.

How do I lower the budget I need?

Raise conversion rate or lower CPC (better targeting, Quality Score, negatives) — both reduce the spend per result.

Is this free?

Yes — no sign-up.

Numbers not adding up?

If the figures aren't where you want them, I'll find exactly where your Google Ads budget is leaking — free, no obligation.

Call 07410 907 104 Get a free PPC audit