What is CPC?
Cost per click. The amount you pay each time someone clicks your ad.
CPC = Total Spend / Total Clicks
A worked example
You spend Rs 18,000 and receive 600 clicks, giving an average CPC of Rs 30. In competitive Mumbai categories the same budget might buy 60 clicks at Rs 300 each; on long-tail informational terms it might buy 2,000 clicks at Rs 9.
Why it matters
CPC is what the auction charges you for attention, and in India it varies enormously by category. Competitive real estate, legal, insurance and higher-education terms in metro cities can run into the hundreds of rupees per click. Long-tail informational queries often sit below Rs 10. That range means any general advice about CPC is useless without your category attached.
What matters commercially is not the CPC itself but what it costs you to acquire a customer. A Rs 300 CPC on a term that converts at 15 per cent produces a Rs 2,000 cost per conversion. A Rs 20 CPC converting at 0.4 per cent produces Rs 5,000. The expensive click is frequently the cheaper customer, and businesses that optimise for low CPC routinely end up paying more per sale.
CPC is also the lever that responds least to cleverness. You can improve Quality Score and reduce it somewhat, but you are ultimately bidding against everyone else who wants the same customer. Conversion rate is where the real gains are.
The nuance most people miss
Your average CPC is a blend that can hide the account's actual behaviour. A handful of high-cost brand-defence terms can drag the average up while your volume terms are cheap, or a flood of irrelevant broad-match clicks can drag it down while your money terms cost a fortune. Segment CPC by match type, by campaign and by device before drawing any conclusion from it.
Common mistakes
- Chasing a low CPC at the expense of intent quality, cheap clicks from the wrong people are the most expensive traffic there is
- Setting bid caps below the auction floor, which simply stops delivery without any warning that this is what happened
- Reading a blended account CPC without segmenting by campaign and match type
- Assuming a rising CPC means something is broken, in a growing category it usually means competition increased