Free Google Ads Calculators

Simple, instant tools to plan and sanity-check your Google Ads — built for local businesses by a specialist who runs these accounts every day. No sign-up, no stored data, just answers.

Budget Calculator

Work out the monthly budget you need to hit a lead target — plus the cost per lead and clicks it takes to get there.

Open calculator →

ROI & ROAS Calculator

See whether Google Ads pays off: your ROAS, new customers, revenue and cost per customer from the spend you put in.

Open calculator →

Cost-Per-Lead Calculator

Project your leads and cost per lead from spend, clicks and conversion rate — and see how it stacks up against a healthy range.

Open calculator →

Break-Even ROAS Calculator

Find the ROAS you need just to break even (from your profit margin) — and check whether your current return is actually profitable.

Open calculator →

Max CPA Calculator

Work out the most you can afford to pay per lead and per customer — the number to set your bids and Target CPA by.

Open calculator →

Customer Lifetime Value

See what a customer is really worth over their lifetime — revenue and profit — so you know how much you can spend to win one.

Open calculator →

Management Cost Calculator

See your all-in monthly cost — ad spend plus management — and whether a percentage or flat-fee model is cheaper for your budget.

Open calculator →

Which calculator should I use?

They answer different questions, and they work well together:

Planning your spend?

Start with the Budget Calculator — it tells you how much to put in to hit a target number of leads.

Wondering if it's worth it?

Use the ROI Calculator — it turns that spend into customers, revenue and a ROAS figure, so you can judge the return before you commit.

Common questions

Are these Google Ads calculators free?

Yes — every tool here is free, runs entirely in your browser, and needs no sign-up. Results are instant and nothing you type is stored.

How accurate are the results?

They're solid estimates based on the numbers you enter. Real-world results depend on your market, competition and tracking — treat the output as a starting point, then refine with live account data.

Prefer a real person to run the numbers?

I'll look at your actual account, tie the numbers to a real goal, and tell you honestly whether Google Ads is the right move — no pitch, no obligation.

See If We're a Fit →