How do you calculate video completion rate?

Video completion rate is the percentage of views that reach the end of the video: completion rate = (viewers who finished ÷ total views) × 100. If 1,000 people start your video and 250 watch to the end, your completion rate is 25%. This calculator derives it from your platform retention data along with where, specifically, viewers are dropping off — so you can see not just the final number but what pulls it down.

What is a good video completion rate?

It depends heavily on length and platform. Short videos (≤15s) often see 40–50% completion; videos up to a minute commonly land at 20–30%; longer videos frequently fall to 10–15% or lower. Because the benchmark moves with duration, the calculator compares your completion rate against the platform-and-length-appropriate average rather than a single universal target.

Is video completion rate the same as VCR or view-through rate?

They overlap but are not identical. "Video completion rate" and VCR (video completion rate) usually mean the share of viewers who watch to 100%. "View-through rate" (VTR) is sometimes used the same way and sometimes for the share of impressions that led to a completed view in an ad context. Because definitions vary by platform, this tool computes completion from your actual retention curve so the number is unambiguous for your data.

How is completion rate different from retention and drop-off?

Completion rate is a single endpoint — the percentage still watching at the finish. Retention is the full curve of how that audience declines across the whole video, and drop-off is the rate of loss within each segment. Completion rate tells you the outcome; retention and drop-off tell you where and why you lost people. This calculator surfaces all three together so the headline number is actionable.

Video Completion Rate Calculator

Calculate what percentage of viewers finish your video — with retention and drop-off context for YouTube, Vimeo, TikTok, and Facebook

Video Platform

Facebook provides key metrics at 3s, 15s (ThruPlay), and percentage-based breakpoints.

Video Length (seconds)

How long is your video in seconds

Total Views

Total number of video starts

Video Breakpoints

Enter the number of viewers at each breakpoint in your video analytics.

Breakpoint	Time	Viewers
Video Start	0s
3-Second Views	3s
ThruPlay (15 seconds)	15s
50% Watched	30s
75% Watched	45s
95% Watched	57s
100% Watched	60s

Retention curves sit inside a larger video-creative analysis framework. Use these definitions and calculators to grade the leak, size the cost impact, and plan the test that fixes it.

Glossary terms

ThruPlay Rate — Meta-defined 15s / 97% completion bar — the platform-native counterpart.
Video Completion Rate (VCR) — Full-view percentage; pairs with drop-off to size the leak.
Cost per ThruPlay — Cost efficiency of completed views — drop-off pushes this up.
Thumbstop Rate — The first-frame retention drop the chart's 0-3s bucket captures.
Hold Rate — Retention after the hook — isolates body pacing from thumbstop strength.
Creative Fatigue — Why retention curves shift downward over a campaign's flight.

Other calculators

ROAS Calculator — Tie the retention leak to the revenue impact downstream.
Creative Testing Calculator — Sample sizes for A/B-testing the retention fix you build.
CPM Calculator — How auction cost compounds with poor retention.

Frequently Asked Questions

Video Completion Rate Calculator

Free video completion rate calculator: find what percentage of viewers watch your video to the end, with full retention and drop-off context. Works from YouTube, Vimeo, TikTok, and Facebook analytics data — completion rate benchmarked against platform averages.

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ThruPlay Rate Benchmark

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Related Terms

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Video Completion Rate

Video Completion Rate measures the percentage of video ad impressions that are watched to 100% completion. This metric helps evaluate creative engagement, message delivery effectiveness, and audience targeting accuracy while accounting for video length and placement quality. VCR is particularly important for brand messaging where full creative viewing is crucial.

Glossary Term

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Churn Rate

Churn rate measures the proportion of customers who discontinue their relationship with a company during a specific timeframe. For subscription businesses, this means cancellations or non-renewals. For non-subscription businesses, churn is often defined as no purchase activity within a set period. It's a critical metric for evaluating customer retention and business health.

Glossary Term

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Moving Average

A moving average is a statistical calculation that creates a series of averages from different subsets of data over time. It helps identify trends by smoothing out short-term fluctuations and random outliers in metrics like CPC, CTR, or ROAS.

Glossary Term