Aspect Ratio Calculator
Simplify pixel dimensions to a ratio, or calculate a missing dimension from a known ratio.
Exact
1920:1080
Simplified
16:9
Decimal
1.7778
Common uses: Video production (16:9, 21:9), photography (3:2, 4:3), web design (1:1 for social), portrait video (9:16 for Reels/TikTok), print (5:4).