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Aspect Ratio
Dedicated Interface: Classic 4:3 Standard Studio
Traditional Format•4:3

4:3 Aspect Ratio & Resolution Guide

The 4:3 aspect ratio (1.33:1) was the standard for 20th century television, classic cinema (Academy ratio 1.37:1), early computer monitors (VGA, XGA), Micro Four Thirds camera sensors, and modern Apple iPad screens.

Target Aspect Ratio
4:3
Standard Resolution
1440 × 1080
Orientation
landscape
Decimal Equivalent
1.3333
Dedicated Live Interface

Classic 4:3 Standard Studio & Scaling Calculator

Pre-loaded with 1440 × 1080 (4:3landscape). Adjust width or height to calculate proportional dimensions.

CalculatorCrop Media
px
px
Calculated RatioLandscape
16:9
Decimal: 1.7778
Standard Format:16:9 (Widescreen Full HD / 4K)
Greatest Common Divisor (GCD):120
Developer Outputs (CSS • HTML)Show Code
aspect-ratio: 16 / 9;
aspect-video
width="1920" height="1080"
Fluid Container CSS
Live Visual Preview•16:9
16:91920 × 1080Full HD
W: 1920H: 1080
Proportional Visual Canvas

The preview rectangle automatically scales proportionally to simulate true physical and screen viewport orientations, preventing distortion before you export.

Common 4:3 Resolutions & Formats

Exact pixel dimensions matching the 4:3 ratio across varying quality tiers.

Standard / TierDimensions (W × H)QualityPrimary Use Case
Full HD Pillarbox1440 × 1080 px1080p 4:3High-definition remastering of vintage 4:3 broadcast content
SXGA+1400 × 1050 pxSXGA+Legacy business conference projectors
Standard XGA1024 × 768 pxXGAClassic iPad retina baseline resolution
VGA Baseline640 × 480 px480p NTSCRetro gaming consoles (PS1, N64) and vintage broadcast

Safe Zone & UI Margins

Classic broadcast safe zone standards apply.

Top Margin Clearance:5%
Bottom Margin Clearance:5%
Right Rail Clearance:5%
Left Margin Clearance:5%

Recommended Video & Audio Codecs

Export settings to minimize server-side recompression artifacts and preserve crisp details.

Video Codec:H.264
Target Bitrate:6 - 10 Mbps
Frame Rate:24, 25, or 29.97 fps
Color Space:sRGB / Rec. 601 (NTSC) / Rec. 709
Container File:MP4 / QuickTime MOV

Why 4:3 Remains Vital in Modern Creative Production

Far from obsolete, 4:3 is experiencing a resurgence among contemporary filmmakers who choose 4:3 to evoke nostalgia and emphasize verticality in character portraits over horizontal landscapes. It also remains the native sensor ratio of Micro Four Thirds cameras and Apple iPad screens.

Frequently Asked Questions about 4:3

What is the decimal equivalent of 4:3?

4 divided by 3 is 1.3333... (commonly noted as 1.33:1).

Need to calculate or inspect other aspect ratios?

Visit our universal aspect ratio calculator hub for drag-and-drop media inspection, multi-line batch processing, reverse resolution matching, and instant CSS export.

Go to Main Aspect Ratio Calculator →