Measuring ROAS
ROAS answers the only question that really matters: for every rupee I spent on ads, how many rupees came back?
What you will learn
- Define ROAS and calculate it
- Read whether a campaign is profitable
- Connect CTR, CPC and conversion to revenue
The number that decides everything
Clicks are nice, but the real question every business owner asks is: did the ads make money? The metric for that is ROAS — Return On Ad Spend. It tells you how much revenue you earned for every rupee of ad spend.
ROAS = Revenue from ads / Ad spend
Example - an online clothing store:
Ad spend this month = ₹10,000
Revenue from the ads = ₹40,000
ROAS = 40,000 / 10,000 = 4
Often written as 4x, or 400%Note: A ROAS of 4 means every ₹1 spent on ads brought back ₹4 in revenue. Higher is better. A ROAS below 1 means you earned less than you spent — the ads are losing money.
From clicks to revenue, step by step
Let us follow the whole journey with real numbers, so you see how the metrics connect. This is a saree store running one campaign for a month.
| Step | Number | How it is found |
|---|---|---|
| Impressions (times shown) | 50,000 | From the platform |
| Clicks | 1,000 | CTR = 1,000 / 50,000 = 2% |
| Ad spend | ₹10,000 | CPC = 10,000 / 1,000 = ₹10 |
| Orders | 50 | Conversion rate = 50 / 1,000 = 5% |
| Revenue (₹2,000 per order) | ₹1,00,000 | 50 x ₹2,000 |
| ROAS | 10x | 1,00,000 / 10,000 |
Note: Each metric builds on the last: impressions lead to clicks (CTR = click-through rate, the share of viewers who click), clicks cost money (CPC = cost per click, the price of one click), some clicks become orders (conversion rate, the share of clickers who buy), and orders make revenue. ROAS ties spend to revenue at the end. A 10x ROAS here is excellent.
Is a high ROAS always enough?
ROAS uses revenue, not profit. If your product costs a lot to make, a ROAS of 2 might still lose money once you subtract product cost. So know your margins.
| ROAS | Meaning |
|---|---|
| Below 1x | Losing money on ads — fix or pause |
| Around 1x | Breaking even on revenue (likely a loss after costs) |
| 3x to 4x | A common healthy target for many stores |
| Very high | Great — and a sign you could spend more to grow |
Tip: A handy break-even idea: if your profit margin is 25%, you need a ROAS of about 4 just to break even, because ₹4 of revenue at 25% margin equals the ₹1 you spent. Always judge ROAS against your margin.
Watch out: Do not celebrate a high ROAS while ignoring profit. Revenue is not profit. A campaign can show a tidy ROAS and still lose money if your product and delivery costs are high.
Q. You spent ₹5,000 on ads and earned ₹20,000 in revenue. What is your ROAS?
✍️ Practice
- A campaign spent ₹8,000 and made ₹24,000 in revenue. Calculate the ROAS.
- A store had 2,000 clicks and 80 orders. Calculate the conversion rate as a percentage.
🏠 Homework
- Make up realistic numbers for a small business (impressions, clicks, spend, orders, price). Calculate CTR, CPC, conversion rate and ROAS, showing each step.