In this article · 9 sections
- The three numbers you need
- The simple formula
- Setting a learning budget
- How Google spends your daily budget
- Make a small budget work harder
- When to increase budget
- When to pause or rethink
- Frequently Asked Questions
- Is there a minimum budget for Google Ads in India?
- Should I pay an agency on top of ad spend?
- How long before I know if ads work?
- Why are my clicks expensive?
- Plan your ad budget with us
"How much should I spend on Google Ads?" is usually the first question in any advertising conversation. The honest answer is that it depends on your industry, location, competition and goals. But that doesn't mean you have to guess. With a few simple figures, you can calculate a starting budget that's large enough to learn from — without risking money you can't afford.
The three numbers you need
- Average cost per click (CPC) for your main keywords.
- Conversion rate — the share of visitors who call, WhatsApp or submit a form.
- Close rate — the share of leads that become paying customers.
Estimate CPC using Google's Keyword Planner (inside Google Ads, free). It shows a range for "top of page bid". Treat it as a rough guide; actual costs often differ.
The simple formula
Cost per lead = CPC ÷ conversion rate
Cost per customer = cost per lead ÷ close rate
Example with illustrative numbers:
| Figure | Value |
|---|---|
| Average CPC | ₹20 |
| Landing page conversion rate | 8% |
| Cost per lead | ₹20 ÷ 0.08 = ₹250 |
| Close rate | 40% |
| Cost per customer | ₹250 ÷ 0.40 = ₹625 |
Now compare this with what a customer is worth to you (profit per job, or lifetime value for repeat customers). If a customer brings ₹2,000 profit, ₹625 acquisition cost is healthy. If they bring ₹400, the campaign needs a cheaper strategy or better conversion rate.
Setting a learning budget
A campaign needs enough clicks to show whether it works. A practical rule: budget for at least 100–200 clicks in the first month on your core keywords. Using the example above, 150 clicks × ₹20 = ₹3,000 for the month is a bare minimum test; more competitive industries need significantly more.
Automated bidding strategies also need conversion data to learn. Very small budgets spread across many keywords often produce too little data to optimise.
How Google spends your daily budget
- You set an average daily budget.
- Google may spend up to twice that amount on a busy day, to catch more opportunities.
- Over a month, it won't charge more than about 30.4 times your daily budget (the average days in a month).
So a ₹500 daily budget means roughly ₹15,200 per month maximum, even if individual days vary.
Make a small budget work harder
- Focus on your most profitable service and closest area first.
- Use high-intent keywords: "taxi Ludhiana to Delhi airport" rather than "taxi".
- Add negative keywords from day one: jobs, free, DIY, training, competitor names you don't want.
- Set location to Presence for local services. See location targeting.
- Schedule ads for hours when you can answer calls.
- Send traffic to a dedicated landing page, not your homepage.
- Track conversions before spending seriously. See conversion tracking.
When to increase budget
- Cost per customer is comfortably below customer value.
- Google shows "Limited by budget" and you're missing impressions.
- You can handle more leads without hurting service quality.
Increase gradually — for example 20–30% at a time — and watch cost per lead for a couple of weeks after each change.
When to pause or rethink
- After a reasonable test, cost per customer is above what a customer is worth.
- Leads are poor quality — check search terms and landing page clarity.
- You can't answer calls or reply quickly.
Sometimes SEO or Google Maps optimisation is a better first investment. See Google Ads vs SEO.
Frequently Asked Questions
Is there a minimum budget for Google Ads in India?
Google doesn't set a high minimum, but a budget that's too small won't produce enough data to learn what works.
Should I pay an agency on top of ad spend?
Management fees are separate from ad spend. Compare the total cost per customer, not just fees.
How long before I know if ads work?
Usually 4–8 weeks with proper tracking, depending on volume.
Why are my clicks expensive?
Competition, broad keywords, low Quality Score and poor landing pages all raise costs. See our Quality Score guide.
Plan your ad budget with us
Joboo Web builds realistic budget plans and manages campaigns transparently. See Google Ads management or contact us.
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