4:5 Aspect Ratio Calculator
Get the exact 4:5 size for portrait posts in the Instagram and Facebook feed. Enter a width or height and the other side is filled in.
Aspect ratio
:
calculatedpx
calculatedpx
4:5
1,080 × 1,350px
px
px
Enter the size you have — the ratio is reduced to its simplest form.
64:27
What is the 4:5 aspect ratio?
4:5 is a slightly tall rectangle: 4 units wide for every 5 units tall, a decimal ratio of 0.8. It is the tallest shape Instagram shows in the feed without cropping, so portrait posts in 4:5 take up more of the screen than square ones.
height = width × 5 ÷ 4
width = height × 4 ÷ 5
width = height × 4 ÷ 5
Standard 4:5 sizes
- 1080 × 1350 — Instagram portrait post
- 1600 × 2000 — high-resolution print or web image
- 8 × 10 in — the classic photo print is also 4:5
Frequently asked questions
What size is a 4:5 Instagram post?
1080 × 1350 pixels.
Is 4:5 the same as 8 × 10?
Yes. 8 ÷ 10 reduces to 4 ÷ 5.
What is the 4:5 height for a width of 1200 px?
1200 × 5 ÷ 4 = 1500 px.