Aspect Ratio Calculator
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Result
What is Aspect Ratio Calculator?
An aspect ratio is the proportional relationship between width and height. It determines the shape of images, videos, and screens.
Calculating Aspect Ratio from 1920 × 1080
1
Input
1920 × 1080
→
2
GCF = 120
÷ 120
→
✓
Result
16 : 9
Aspect Ratio Calculator Formula
Different media formats use standard aspect ratios. Knowing them helps with design and content creation.
16 : 9
Widescreen
HD, 4K, YouTube
4 : 3
Standard
Old TVs, iPad
21 : 9
Ultrawide
Cinema, Gaming
1 : 1
Square
Instagram
9 : 16
Vertical
Stories, Reels
3 : 2
Photo
DSLR, Surface
Where Aspect Ratios Matter
Aspect ratios affect how content is displayed across different devices and platforms.
Video Production
16:9 for YouTube, 9:16 for Reels
App Design
Match device screen ratios
Cinema
2.39:1 for cinematic widescreen
FAQ
FAQ: Aspect Ratios
Questions about aspect ratios for media and design.
An aspect ratio describes the proportional relationship between the width and height of an image or screen. Common examples are 16:9 (widescreen) and 4:3 (standard).
Divide the width and height by their Greatest Common Factor (GCF). For example, 1920×1080: GCF is 120, so 1920÷120 : 1080÷120 = 16:9.