Aspect Ratio
Calculator
Calculate the perfect dimensions for any aspect ratio. YouTube, Instagram, TikTok, and more.
1. Select Aspect Ratio
16:9 — YouTube, TV, Most Videos
2. Enter Dimension
Quick pick (width):
Result
Width
1920px
Height
1080px
Social Media Presets
Click to apply the dimensions instantly
Common Aspect Ratios
Widescreen
YouTube, TV, Most Videos
Vertical
TikTok, Reels, Shorts
Standard
Old TV, iPad, Presentations
Square
Instagram Posts, Profile Pics
Ultra-wide
Cinema, Ultrawide Monitors
Anamorphic
Hollywood Films
Portrait
Instagram Portrait
Classic Photo
DSLR Photos, 35mm Film
Standard Video Resolutions
Click any resolution to use it in the calculator
What is Aspect Ratio?
Aspect ratio is the proportional relationship between width and height. A 16:9 ratio means for every 16 units wide, the image is 9 units tall.
Why does it matter?
Wrong aspect ratio = black bars, cropping, or stretched/squished video. Each platform expects specific dimensions.
How to use this calculator
Select your target ratio, enter one dimension (width or height), and we calculate the other to maintain perfect proportions.