:
Calculated Aspect Ratio:
16 : 9
Greatest Common Divisor (GCD): 120
Universal 2026 Presets
Frequently Asked Questions
What is aspect ratio?
Aspect ratio is the proportional relationship between width and height. Common ratios: 16:9 (widescreen), 4:3 (standard), 1:1 (square), 9:16 (vertical video).
How do I calculate aspect ratio?
Enter any width and height. The tool instantly calculates the ratio, shows equivalent dimensions, and provides CSS code.
What ratio is best for YouTube?
16:9 (1920×1080) is standard for YouTube. Shorts use 9:16 (1080×1920). The tool converts between all common ratios.