What is video aspect ratio?

Video aspect ratio is the proportional relationship between a video's width and height, expressed as two numbers separated by a colon (like 16:9). It determines the shape and dimensions of your video frame.

How do I calculate the video aspect ratio?

Divide the video width by the height, then simplify to the lowest common denominator. For example, 1920÷1080 = 1.78, which simplifies to 16:9. Our calculator does this automatically.

What is the aspect ratio of 1920x1080?

1920x1080 has a 16:9 aspect ratio. This is the standard for Full HD video, YouTube content, and modern displays.

What aspect ratio is 2560x1440?

2560x1440 maintains the 16:9 aspect ratio, commonly used for QHD (1440p) gaming monitors and high-resolution video content.

How does a video ratio calculator work?

The calculator uses mathematical proportions to maintain aspect ratios. When you enter one dimension and select a ratio, it calculates the corresponding dimension using the formula: new_height = (width × ratio_height) ÷ ratio_width.

What is the difference between aspect ratio and resolution?

Aspect ratio is the shape (width-to-height relationship), whilst resolution is the actual pixel count. Multiple resolutions can share the same aspect ratio - for example, 1280x720, 1920x1080, and 3840x2160 all have 16:9 ratios.

How do I resize a video without distortion?

To avoid distortion, always maintain the original aspect ratio when resizing. Use this calculator to find the correct dimensions, then crop or add letterboxing if you need a different ratio.

How do I convert aspect ratio to pixels?

Choose your desired width in pixels, select the aspect ratio, and the calculator provides the exact height in pixels. For example, 1920 pixels wide at 16:9 ratio equals 1080 pixels tall.

What is the aspect ratio of 4K video?

Standard 4K (UHD) video uses 16:9 aspect ratio at 3840x2160 pixels. Cinema 4K (DCI 4K) uses 1.90:1 ratio at 4096x2160 pixels.

How do I calculate screen size from aspect ratio?

Use the aspect ratio with one known dimension to find the other. For physical screens, you'll also need the diagonal measurement to calculate exact width and height in inches or centimetres.

Why does my video have black bars?

Black bars (letterboxing) appear when the video's aspect ratio doesn't match the display. A 4:3 video on a 16:9 screen will have vertical black bars, whilst a 21:9 video on a 16:9 screen will have horizontal bars.

What happens if I use the wrong video aspect ratio?

Using incorrect aspect ratios can result in stretched/squashed video, cropped content, or black bars. It can also hurt engagement on social platforms that optimise for specific ratios.

How do I change video aspect ratio without losing quality?

To change ratios without quality loss, either crop the video (losing some content) or add letterboxing (black bars). Stretching the video will always reduce quality and look unprofessional.

Is 16:9 or 4:3 better for video?

16:9 is the modern standard for most applications - YouTube, streaming, TVs, and monitors. Use 4:3 only for vintage content, specific artistic choices, or platforms that still support it.

What is the difference between 1080p and 1440p?

Both use 16:9 aspect ratio, but 1080p is 1920x1080 pixels whilst 1440p is 2560x1440 pixels. 1440p has 77% more pixels, providing sharper image quality.

What is a 1:1 aspect ratio?

1:1 means the width and height are equal, creating a perfect square frame used heavily in social media feed formats.

What is the best square video size for social media?

1080x1080 is the most common square video size for Instagram, Facebook, and LinkedIn feed publishing.

Is 1:1 still useful when 9:16 is popular?

Yes. 1:1 works well for feed placements, product showcases, and center-focused compositions where a balanced frame improves readability.

1:1 Square Video Calculator - Social Media Dimensions

Calculate perfect 1:1 square video dimensions for Instagram feed posts, Facebook videos, and LinkedIn content.

The 1:1 square ratio remains a strong option for social feeds where balanced framing and center-weighted composition matter. Use this calculator to generate exact square dimensions for mobile and desktop social delivery.

Width (px)

Height (px)

1:1 Preset

Standard square feed post

Calculated Ratio

1:1

How to Use the 1:1 Square Video Calculator

Select a square preset: start with Instagram Feed Square or another platform-specific option.
Enter one value: type width or height and the calculator mirrors the paired value.
Export in square format: use the output dimensions for social feed publishing.

What Is 1:1 Square Video Ratio?

1:1 is a square format where width and height are equal. It is common for feed-first content because it is compact, balanced, and performs consistently across many placements.

Common Uses for 1:1 Square Video

Instagram feed videos and carousel assets
Facebook feed posts and paid social units
LinkedIn feed content for professional campaigns
Product demos with centered composition
Repurposed clips from wider source timelines

Standard 1:1 Dimensions

Format	Resolution	Typical Use
Square HD	720x720	Lightweight social posting
Square Full HD	1080x1080	Instagram, Facebook, LinkedIn feed standard
Square 2K	1440x1440	Higher detail edits and archive masters
Square 4K	2160x2160	Premium square master export

Tip: on smaller screens, swipe horizontally to view the full table.

Tips for Working With 1:1

Compose with strong center framing so key visuals stay legible across mobile feeds. Square content also adapts cleanly to carousel placements and paid social units.

If you also publish 4:5 and 9:16, keep text overlays in a safe central zone. This helps you repurpose one master edit across multiple social formats with minimal rework.

Frequently Asked Questions about 1:1 Square Video

What is 1:1 aspect ratio?

1:1 is a square ratio where width equals height. It is commonly used for feed-style social publishing.

What is the best square video resolution?

1080x1080 is the standard default for social feed videos because it balances quality and upload efficiency.

Which platforms use square video?

Instagram feed, Facebook feed, and LinkedIn feed all support square video and often display it prominently in scrolling layouts.

Related Aspect Ratio Calculators

Explore our other dedicated calculators for specific aspect ratios:

1:1 Square Video Calculator - Social Media Dimensions

How to Use the 1:1 Square Video Calculator

What Is 1:1 Square Video Ratio?

Common Uses for 1:1 Square Video

Standard 1:1 Dimensions

Tips for Working With 1:1

Frequently Asked Questions about 1:1 Square Video

What is 1:1 aspect ratio?

What is the best square video resolution?

Which platforms use square video?

Related Aspect Ratio Calculators

1.375:1 Calculator

1.43:1 Calculator

1.85:1 Calculator

1.90:1 Calculator

2:1 Calculator

2.35:1 Calculator

2.39:1 Calculator

2.76:1 Calculator

16:9 Calculator

9:16 Calculator

21:9 Calculator

32:9 Calculator

4:3 Calculator

4:5 Calculator