Enter original width and height in pixels or choose a popular preset.
Smart Calculator
Aspect Ratio Calculator
Calculate 16:9, 9:16 Shorts, 4:3, and 1:1 dimensions with a live visual preview box.
Common Presets:
Source Dimensions (Pixels):
Aspect Ratio:16:9
Decimal value:1.7778
Total Pixels:2,073,600 (2.07 MP)
Find Proportional Height:
×
720 px
Proportional Visual Preview:
16:9
Visual representation reflects the exact 16:9 proportions.
Calculations run 100% in real-time in your browser without network requests.
Tool guide
How it works
Follow these steps to use Aspect Ratio Calculator.
Read the simplified aspect ratio (e.g. 16:9, 9:16) and decimal value.
Calculate proportional dimensions for custom widths and view the live shape preview.
File or text
Tool action
Your result