marketing · 2026-05-01
Convert video ad cost-per-view (CPV) to cost-per-acquisition (CPA) — through view-completion, click-through, landing-page conversion.
| Cost per view ($) | $0 |
| View completion % (50%+) | 30% |
| Completer click % | 4% |
| Landing → buy % | 4.5% |
| Effective cost per click | $2 |
| Acquisitions per 1,000 views | 0.5 |
| Cost per 1k views | $25 |
Video ads are sold on cost-per-view (CPV) but what matters for ROI is cost-per-acquisition (CPA). The funnel from view to purchase has 3 multiplicative drops:
CPA = (CPV × 1000) ÷ (1000 × completion% × click% × convert%)
Default scenario: $0.025 CPV, 30% completion, 4% click rate, 4.5% landing conversion → 1,000 views deliver 0.54 acquisitions. CPA = $46.30.
For DTC: usually yes. Skippable formats select for engaged viewers; you only pay for true watch time. Non-skippable formats inflate CPV without raising buyer intent. Bumper ads (6-sec non-skip) work for brand recall but have ~0% direct CPA.
If your video flow includes retargeting: yes, separately. Most successful video campaigns: prospecting at $0.03 CPV reaches new audiences; retargeting at $0.10-0.20 CPV converts them. Combined CPA is much lower than prospecting alone but the math gets complicated. Track separately.
YouTube TrueView 30%+ is decent. Reels 15-25% is strong. TikTok 10-20% is good. If completion is below platform median, your hook isn't working — fix the first 3 seconds before optimizing anything else.