4:3 Aspect Ratio Calculator for TikTok

Instructions

1. Enter the original width (W1) and height (H1).
2. Enter either the new width (W2) or new height (H2) to compute the other.
3. Change values at any time — use Reset to restore defaults.

TikTok Aspect Ratio Guide

Understanding the correct aspect ratio for your TikTok videos is crucial for creating content that looks professional and engages your audience effectively. This guide covers everything you need to know about TikTok's video dimensions.

What is the Best Aspect Ratio for TikTok?

The optimal aspect ratio for TikTok is 9:16. This is a vertical format that is designed to fill the entire screen of a smartphone. When you upload videos in a 9:16 aspect ratio, you provide an immersive, full-screen experience for viewers.

The recommended resolution for a 9:16 video on TikTok is 1080x1920 pixels.

Why 9:16 is Important

• Full-Screen Experience: It uses the entire vertical screen space on mobile devices, grabbing the viewer's full attention.
• Platform Native: It's the standard format for TikTok, Instagram Reels, and YouTube Shorts, so your content will look native to the platform.
• Higher Engagement: Videos that are optimized for the platform tend to perform better in the algorithm and receive more engagement.

Additional Specifications

• Video Duration: While TikTok supports videos up to 10 minutes long, the most successful content is often short and engaging, typically between 15 and 60 seconds.
• File Format: The recommended video formats are MP4 and MOV.
• Max File Size: For organic uploads, the file size limit is 287.6 MB on iOS and 72 MB on Android.

What About Other Aspect Ratios?

While you can upload videos with other aspect ratios, like 1:1 (square) or 16:9 (horizontal), they will not provide the best viewing experience. TikTok will display them with black bars (or a blurred background) above and below to fit them into the 9:16 frame. This can be distracting and may lead to lower viewer retention.

Use Our Calculator

Need to resize a video or image to the 9:16 aspect ratio? Use our handy calculator to find the correct dimensions.

Go to TikTok Aspect Ratio Calculator

The 4:3 aspect ratio, often called "fullscreen" or "standard definition," was the universal standard for television and computer monitors for decades. While widescreen (16:9) is now dominant, 4:3 remains relevant for its classic, retro feel and its use in specific photography formats.

What is the 4:3 Aspect Ratio?

The 4:3 aspect ratio was the standard for 20th-century television (NTSC, PAL) and early computer displays. It provides a more squarish frame compared to modern widescreen formats. For every 4 units of width, there are 3 units of height.

Common resolutions for a 4:3 display include 640x480 (VGA), 800x600 (SVGA), and 1024x768 (XGA).

Why 4:3 is Still Relevant

• Retro Aesthetic: It instantly gives video content a vintage or classic TV show feel.
• Photography Standard: It's the native aspect ratio for Micro Four Thirds cameras and is a common option in many digital cameras.
• iPad Displays: Apple's iPads use a 4:3 aspect ratio, making it ideal for apps and content designed for those devices.

How 4:3 Interacts with Widescreen

When you display a 4:3 video on a modern 16:9 screen (like a TV or YouTube), you will see black bars on the left and right sides. This effect is called pillarboxing. Conversely, if you watch a 16:9 video on a 4:3 screen, you'll see black bars on the top and bottom, known as letterboxing.

Frequently Asked Questions (FAQ)

What is a common 4:3 resolution?

Common 4:3 resolutions include 640x480 (SD), 800x600, and 1024x768. These were standards for older computer monitors and standard-definition television.

Should I use 4:3 for YouTube?

Generally, no. YouTube's player is 16:9, so uploading a 4:3 video will result in pillarboxing (black bars on the sides). It should only be used if you are intentionally aiming for a retro or specific artistic style.

What is the difference between pillarboxing and letterboxing?

Pillarboxing adds black bars to the sides of the content to fit a wider screen (e.g., 4:3 video on a 16:9 screen). Letterboxing adds black bars to the top and bottom to fit a taller screen (e.g., 16:9 video on a 4:3 screen).