# Completion rate

> Completion rate is the share of video plays that reached the end of the video.

Canonical: https://use-addy.site/glossary/completion-rate
Last updated: 2026-10-26

Also called: video completion rate, VCR

**Formula:** Completion rate = plays to 100% ÷ video plays × 100

Short ads finish more often, which is one reason 15-second ads are popular for Reels and TikTok. A high completion rate on a short ad says little on its own; pair it with click-through rate to see whether people acted after watching.

## Related

- [View-through rate (VTR)](https://use-addy.site/glossary/view-through-rate)
- [Hold rate](https://use-addy.site/glossary/hold-rate)
- [CTR (click-through rate)](https://use-addy.site/glossary/ctr)