Aspect Ratio Calculator
calculate ratios, resize proportionally, common presets
Original Dimensions
Width
px
Height
px
16:9
1.7778
16:9
Resize (Locked Ratio)
Width
px
Height
px
Change one value to calculate the other
Common Ratios
16:9
HD Video, YouTube
4:3
Classic TV, iPad
1:1
Instagram Square
9:16
Stories, Reels, TikTok
21:9
Ultrawide, Cinema
3:2
35mm Film, DSLR
4:5
Instagram Portrait
2:1
Univisium, 18:9
5:4
Large Format Photo
1080p
1920x1080
4K
3840x2160
1440p
2560x1440
OG Image
1200x630
Twitter
Header 1500x500
FB Cover
820x312
Common Resolutions