Skip to content
G

Google Ads Budget Calculator

Reverse-engineer the customers you want into the realistic ad budget required.

Google Ads Budget Calculator

Work backwards from the customers you need to the realistic ad budget required.

What the maths assumes

  • Average CPCs for the niche bracket you chose. Your actual CPC depends on keyword competitiveness, ad quality score, and location.
  • Click-to-enquiry rate of 6% as a healthy default. Trades often see 8–12%; legal/insurance can be 2–4%.
  • Enquiry-to-customer rate of 35% as a default, varies enormously by close skill and lead quality.
  • No campaign management fee included. Add £300–£800/month if you\'re using an agency.

Frequently asked questions

Are the CPC ranges realistic for the UK? +
Yes, these are typical Q4 2025 Google Ads CPCs for the UK. Specific keywords can be much higher (e.g. "personal injury solicitor" £20+, "boiler installation" £8–£15 in cities).
What's a realistic conversion rate from click to enquiry? +
For most service businesses, 4–10% on a properly targeted campaign. Below 3% usually means the landing page or keywords need work. Above 12% is exceptional.
Do I need a separate landing page or can I send ads to my homepage? +
A dedicated landing page typically doubles conversion rate. The homepage tries to please everyone; a landing page is built for one specific search intent.
What's the minimum budget that works on Google Ads? +
Below £20/day per campaign, you usually don't get enough conversions to optimise on. £500–£1,000/month is the realistic floor for most local services to see results.
Should I do Google Ads or SEO first? +
If you need leads in 30 days, ads. If you have 6 months and want compounding traffic, SEO. Most healthy businesses do both, weighted by which channel actually delivers.