How long should a Facebook video ad be?

Meta accepts Facebook Feed videos from 1 second to 241 minutes and does not set one best length in its Ads Guide. Reviral ads are 15 seconds, which keeps the hook, the proof and the product in one short cut.

How much does a Facebook video ad cost?

Two costs: the ad spend, which Meta suggests starting at $5 or more over six-plus days, and the video. A 15-second video ad made on Reviral costs 278 credits (~$3.47).

Can AI write a Facebook ad script?

Yes. Reviral's Write my ad drafts the storyboard and spoken lines from your product photos and facts at no cost. Keep Meta's limits in mind for the text around the video: 50 to 150 characters of primary text and a 27-character headline.

How do I make a Facebook ad video?

Add product photos or a product link in Reviral's UGC studio, pick a format, edit the free storyboard, render the 15-second clip, then add it to a new ad in Meta Ads Manager. The same steps work for an app: use screenshots or the app's product page as the source.

What Facebook video ad ideas and templates can I start from?

Reviral's formats work as ready video templates: review, testimonial, unboxing, tutorial, demo, problem-and-solution, before-and-after, try-on and a cinematic TV spot. Pick one, add your product, and the studio writes the scenes.

How do I make Facebook ad images with AI?

Paste a product link into Reviral Image Ads, choose one of 40 formats and get finished ad images in Facebook 1:1, Instagram 4:5 and landscape 1.91:1 sizes. Meta's own Feed image spec is 4:5 at 1440 x 1800 px, JPG or PNG, up to 30 MB.

What are Facebook video ad best practices from Meta?

Meta's Ads Guide recommends captions and sound, a 4:5 ratio for Feed, H.264 video with AAC stereo audio at 128 kbps or more, 50 to 150 characters of primary text and a 27-character headline.

Facebook Ads: Meta Specs, Cost and an AI Ad Maker

A Facebook ad is a paid post that Meta places in Facebook Feed, Reels and other placements, bought in Meta Ads Manager. Meta's Ads Guide asks for a 4:5 Feed video, up to 4 GB and 1 second to 241 minutes long, with a 27-character headline. Reviral makes the creative: a 15-second video ad for 278 credits (~$3.47), or static ad images in Facebook sizes.

Make this ad: free storyboard Browse all AI video tools

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15-second creator ad in 9:16 or 16:9
Static Facebook ad images in 1:1, 4:5 and 1.91:1 sizes
Free storyboard draft; you edit every spoken line
Live credit price before you render

Facebook Feed video ad specs

From Meta's Ads Guide for the Facebook Feed placement.

Spec	Value
File type	MP4, MOV or GIF
Ratio	4:5
Resolution	At least 1080 x 1080 px; minimum width and height 120 px
File size	Up to 4 GB
Video length	1 second to 241 minutes
Primary text	50 to 150 characters
Headline	27 characters
Captions and sound	Optional but recommended
Encoding	H.264, square pixels, fixed frame rate, progressive scan; AAC stereo audio at 128 kbps or more

Read from each site's own page on 21 October 2026: Meta Ads Guide: Facebook Feed video

Facebook Feed image ad specs

Meta's image specs for the same placement.

Spec	Value
File type	JPG or PNG
Ratio	4:5
Resolution	1440 x 1800 px
File size	Up to 30 MB
Primary text	50 to 150 characters
Headline	27 characters

Read from each site's own page on 21 October 2026: Meta Ads Guide: Facebook Feed image

How much do Facebook ads cost?

Meta does not sell ads at a fixed price. Its pricing page recommends starting with at least $5 and a run of more than six days, and budgeting for at least seven days so delivery can learn.

Meta says the objective plays a large role in cost, alongside ad quality, bid strategy, performance goal and budget type. Ad sets also have to meet a daily minimum budget that Ads Manager shows you. Making the video on Reviral is a separate, fixed charge: 278 credits (~$3.47) for a 15-second ad.

Read from each site's own page on 21 October 2026: Meta for Business: Facebook and Instagram ads pricing

What Reviral makes for Facebook and Meta

Video: the UGC studio renders 15-second ads in 9:16, the shape Meta's Ads Guide lists for Instagram Reels and Feed video, or 16:9 for landscape placements.

Images: Image Ads makes static ads from a product link in Facebook 1:1 (1080 x 1080), Instagram feed 4:5 (1080 x 1350), Story 9:16 (1080 x 1920) and landscape 1.91:1 (1200 x 628), across 40 named formats.

Ways to use this tool

Problem-and-solution video

The Facebook classic: name the pain, show the fix, end on the product.

Testimonial-style creator ad

A generated creator explains why the product helps, in a talking-head shot.

Static image ads for the Feed

Product-link to finished 1:1 and 4:5 ad images with editable text.

Landscape cut for in-stream

Render 16:9 when the placement is wide rather than vertical.

How it works

Step 1
Start from the product
Upload product photos or paste the product page link.
Step 2
Choose the angle
Pick a format such as problem-and-solution or testimonial, or leave it on Auto.
Step 3
Check the words
Edit the storyboard and spoken lines, keeping claims you can prove.
Step 4
Render and upload to Ads Manager
Download the video and add your 27-character headline and primary text in Meta Ads Manager.

Real examples

Click any example to play it. Every clip below is an existing Reviral render.

Problem-and-solution ad

Personal testimonial

What it costs

A 15-second UGC ad at 720p costs 278 credits (~$3.47).

Changing the video's length, media type, or resolution can change the final price.

Prices checked 21 October 2026. Dollar figures use the $4.99 Mini Pack rate. Cached for up to 1 hour.

Frequently asked questions

How long should a Facebook video ad be?: Meta accepts Facebook Feed videos from 1 second to 241 minutes and does not set one best length in its Ads Guide. Reviral ads are 15 seconds, which keeps the hook, the proof and the product in one short cut.
How much does a Facebook video ad cost?: Two costs: the ad spend, which Meta suggests starting at $5 or more over six-plus days, and the video. A 15-second video ad made on Reviral costs 278 credits (~$3.47).
Can AI write a Facebook ad script?: Yes. Reviral's Write my ad drafts the storyboard and spoken lines from your product photos and facts at no cost. Keep Meta's limits in mind for the text around the video: 50 to 150 characters of primary text and a 27-character headline.
How do I make a Facebook ad video?: Add product photos or a product link in Reviral's UGC studio, pick a format, edit the free storyboard, render the 15-second clip, then add it to a new ad in Meta Ads Manager. The same steps work for an app: use screenshots or the app's product page as the source.
What Facebook video ad ideas and templates can I start from?: Reviral's formats work as ready video templates: review, testimonial, unboxing, tutorial, demo, problem-and-solution, before-and-after, try-on and a cinematic TV spot. Pick one, add your product, and the studio writes the scenes.
How do I make Facebook ad images with AI?: Paste a product link into Reviral Image Ads, choose one of 40 formats and get finished ad images in Facebook 1:1, Instagram 4:5 and landscape 1.91:1 sizes. Meta's own Feed image spec is 4:5 at 1440 x 1800 px, JPG or PNG, up to 30 MB.
What are Facebook video ad best practices from Meta?: Meta's Ads Guide recommends captions and sound, a 4:5 ratio for Feed, H.264 video with AAC stereo audio at 128 kbps or more, 50 to 150 characters of primary text and a 27-character headline.