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Ad budget & ROI calculator
Enter a daily ad budget, your average cost per click, conversion rate and average order value. The calculator estimates clicks, conversions, cost per conversion, revenue and return on ad spend (ROAS) in rupees, for Meta, Google or marketplace ads.
Estimated results over 30 days
- Total ad spend
- ₹15,000
- Clicks
- 1,500
- 50 a day
- Conversions
- 45
- 1.5 a day
- Cost per conversion
- ₹333
- Revenue
- ₹67,500
- ROAS
- 4.50×
- revenue ÷ ad spend
Compare the cost per conversion with your profit per sale (not revenue) to see whether the campaign actually makes money.
How the calculation works
The calculator uses the same formulas you will see in any ads report:
- Clicks = daily budget ÷ CPC
- Conversions = clicks × conversion rate
- Cost per conversion (CPA) = ad spend ÷ conversions
- Revenue = conversions × average order value
- ROAS = revenue ÷ ad spend
For example, with a ₹500 daily budget and a ₹10 CPC you would get about 50 clicks a day. At a 3% conversion rate that is 1.5 conversions a day, or about ₹333 per conversion. With a ₹1,500 order value, ROAS would be about 4.5×. These are illustrative inputs, not benchmarks; real costs change with your city, season, competition and ad quality.
Turn the estimate into a decision
1. Work out your break-even point
Revenue is not profit. If you keep 40% of each sale after product and delivery costs, a ₹1,500 order earns ₹600, so you can pay up to ₹600 per conversion and break even on the first order. That is the same as a break-even ROAS of 2.5.
2. Find the weakest number
A high CPC points to a competitive audience or weak ad relevance. A low conversion rate usually means the landing page, form or WhatsApp follow-up needs work. A small order value may call for bundles or upsells. Improving any one of them changes every result below it.
3. Test small, then scale gradually
Treat the first one or two weeks as a test, replace the guesses with real numbers, and only then increase the budget in steps. The Meta Ads module and Google Ads module cover budgeting, bidding and A/B testing in detail, and our guide on Meta Ads vs Google Ads helps you pick a channel.
Frequently asked questions
What is a good ROAS?
There is no single good ROAS. It depends on your profit margin. If your gross margin is 40%, your break-even ROAS is 1 ÷ 0.40 = 2.5: below that, each first order loses money once the ad cost is counted. Businesses with strong repeat purchases may accept a lower ROAS on the first order.
Does this calculator include GST?
No. Enter your planned ad budget. In India, GST is generally added on top of ad spend on Meta and Google, so your bank outflow will be higher than the budget shown here.
Where do I find my CPC and conversion rate?
Use the averages from your Google Ads or Meta Ads Manager reports and your analytics. If you have not run ads yet, enter a cautious guess, treat the result as a scenario, and replace it with real numbers after a short test.
What is the difference between ROAS and ROI?
ROAS is revenue divided by ad spend. ROI usually compares profit with the total cost, including product, delivery and staff costs. A campaign can have a ROAS above 1 and still lose money if margins are thin.