Facebook Video Completion Rate Calculator

The calculator needs two numbers: complete views and 3-second views. Every other field is optional and adds one more result.

1. Open the video in Insights in Meta Business Suite or the Professional dashboard. For an ad, open Ads Manager and choose the Video engagement columns.
2. Type in the 3-second video views and the complete views for the same video and dates.
3. Add total plays, the 25%, 50% and 75% milestones, reach, length and average watch time where you have them. Add a target rate to get a verdict against your own goal.

Facebook video completion rate is the share of video views that reached the end of the video. The rate divides complete views by a base count of views and writes the answer as a percentage. Other names for it are watch-through rate and view-through rate.

Meta publishes the counts and leaves the ratio to you. Its Video Insights reference for developers defines a complete view as a play of 97% or more of the video length. The same reference defines a video view as a play of at least 3 seconds, or nearly the full length for a shorter video. Time spent replaying is excluded from both.

Ad Reports Use a Different Label

Ads Manager reports video plays at 25%, 50%, 75%, 95% and 100%. Meta defines each one as the number of times that point of the video was played, including plays that skipped to this point. Its help page marks video plays at 100% as a metric in development.

What the Rate Is Not

Completion rate is not a ThruPlay rate. Meta counts a ThruPlay when a video plays to completion or for at least 15 seconds, so a ThruPlay on a long video can stop far from the end.

1. The tool divides complete views by 3-second views and multiplies by 100. With no 3-second views, it uses total plays as the base and says so.
2. It subtracts complete views from the base to count the views that ended early.
3. It divides 3-second views by total plays to show how many starts lasted 3 seconds.
4. It divides each milestone count by the base to build a short retention curve.
5. It compares each point with the next one and names the stretch with the largest loss.
6. With a target, it works out the complete views needed: target x base, rounded up, minus your complete views.

Example values only, not benchmarks. A Page posts a 60-second video. Insights show 12,000 plays, 5,000 3-second views and 1,250 complete views. The milestone plays are 3,400 at 25%, 2,300 at 50% and 1,600 at 75%. Reach is 9,500 and average watch time is 21 seconds.

• Completion rate = 1,250 / 5,000 x 100 = 25.00%.
• Left before the end = 5,000 - 1,250 = 3,750, or 75.00%.
• 3-second view rate = 5,000 / 12,000 x 100 = 41.67%.
• Completion rate from all plays = 1,250 / 12,000 x 100 = 10.42%.
• Retention = 68.0% at 25%, 46.0% at 50% and 32.0% at 75%.
• Largest drop = start to 25%: 1,600 plays lost, or 32.0 points.
• Complete views per 100 reach = 13.16. Average share watched = 21 / 60 = 35.0%.

The first quarter of this video loses more plays than the other three quarters. A 30% target needs 1,500 complete views from the same 5,000 views, which is 250 more.

The Base You Divide By

Total plays include every start, even a play that lasts a moment in the feed. 3-second views are a smaller number. The example video scores 25.00% on 3-second views and 10.42% on plays.

Video Length

A 15-second clip needs 14.6 seconds of play for a complete view. A 10-minute video needs 9 minutes 42 seconds. Compare videos of a similar length.

Plays That Skip Ahead

Meta counts a milestone play when that point of the video is played, including plays that skipped to it. A viewer who drags the bar to the end adds to plays at 100%.

Organic and Paid Views Together

Video insights split views into organic and paid. A boosted video mixes two audiences, so run each set of numbers apart.

Reels Are Counted Differently

Meta states that plays are relabelled as views for reels and videos. For a reel, its developer reference counts a play from 1 millisecond and publishes no complete view count, so use average watch time for reels.

The three measures answer different questions, and Meta defines each one in its own way.

On a long video, average watch time adds detail that a single completion figure hides. The same idea on another platform is covered by the YouTube audience retention calculator.

Comparing Two Cuts of One Video

Post a 30-second cut and a 60-second cut, then compare the rates and the complete view counts. The rate and the count can point in different directions, so read both.

Finding Where Viewers Leave

Enter the three milestones. The largest drop names the stretch to re-edit first. For live broadcasts, use the Facebook Live viewer retention calculator.

Reporting on a Video Ad

Use video plays at 100% as complete views and 3-second video plays as the base. Keep ThruPlays in a separate line of the report.

Setting a Goal for the Next Video

Type your last rate as the target. The tool shows how many more complete views the new video needs. Pair it with reactions and comments in the Facebook Page engagement rate calculator.

1. Dividing by Reach

Reach counts accounts that saw the post, played or not. Complete views divided by reach is a useful figure, but it is not the completion rate.

2. Counting ThruPlays as Completions

A ThruPlay on a 3-minute video needs 15 seconds. Treating it as a complete view inflates the rate.

3. Changing the Base Between Reports

A rate on 3-second views is always equal to or higher than a rate on plays. Switching bases creates a fake rise or fall.

4. Trusting Fixed Good and Bad Bands

Tables that call 25% average and 40% excellent come from third parties. Meta publishes no such bands on its help pages, and video length changes what a complete view requires.

5. Comparing a Clip with a Long Video

A 15-second clip and a 10-minute video are different tasks for a viewer. Group videos by length before you compare.

6. Reading Milestones as People

Milestone plays count plays, not accounts. One account that watches twice adds two plays. The watch time calculator works on averages when you need time per view.

The arithmetic is exact for the counts you type. The limits come from how Meta builds each count.

Divide complete views by 3-second video views and multiply by 100. A video with 600 complete views and 4,000 3-second views has a 15.00% completion rate.

Meta publishes no pass mark. A longer video needs more seconds of play for each complete view, so the fair test is your own earlier videos of a similar length measured on the same base.

Meta's Video Insights reference counts a complete view when a video plays for 97% or more of its length. For a 60-second video that is 58.2 seconds.

Use 3-second views for the usual rate and all plays for the stricter one. The 600 complete views above equal 15.00% of 4,000 3-second views and 6.00% of 10,000 plays.

No. Meta counts a ThruPlay when a video plays to completion or for at least 15 seconds. On a video longer than 15 seconds, a ThruPlay can end well before the last frame.

Meta counts plays that skipped to a point. A viewer who jumps to the end adds to plays at 100% without adding to plays at 75%.

Multiply the target by your 3-second views, round up, and subtract your complete views. A 40% target on 2,000 views needs 800 complete views, which is 300 more than 500.

Only in part. Meta relabels reel plays as views and publishes no complete view count for reels. Enter the reel length and average watch time to get the average share watched.

It is average watch time divided by video length. An average of 18 seconds on a 45-second video is 40.0%. Ad reports include replay time, so the share can pass 100%.

Meta's Video Insights reference states that data is only available for the past 2 years.

No. The maths runs in your browser and nothing is sent to us. Save keeps a result only in this browser.

• Video Insights reference: complete views at 97% and 3-second video views (Meta for Developers, read 2026-10-02).
• About video ad metrics: video plays at 25%, 50%, 75%, 95% and 100%, and ThruPlays (Meta Business Help Center, read 2026-10-02).
• Video plays at 100% (Meta Business Help Center, read 2026-10-02; includes plays that skipped to this point; marked as in development).
• 3-second video plays (Meta Business Help Center, read 2026-10-02; replays are excluded).
• Insights on your Facebook Page: views, 3-second and 1-minute video views (Meta Business Help Center, read 2026-10-02; plays relabelled as views for reels and videos).