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Aspect Ratio Calculator

Calculate missing dimensions (width or height) while preserving aspect ratios like 16:9, 4:3, 1:1, or custom proportions.

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How to Use Aspect Ratio Calculator

  1. 1

    Select a ratio preset or enter custom ratio (W:H).

  2. 2

    Enter either new Width or new Height.

  3. 3

    The calculated missing dimension updates automatically.

Key Features

  • Common presets (16:9 HD, 4:3 Standard, 1:1 Square, 9:16 Story)
  • Custom ratio lock
  • Responsive grid dimension preview

Benefits

  • Resize video embeds and images without distortion
  • Calculate responsive UI layout bounds accurately
  • Prevent stretched or squished graphics

Common Pitfalls to Avoid

  • Unlocking the ratio aspect lock before scaling dimensions.

Frequently Asked Questions

9:16 (1080x1920 pixels) is the standard portrait ratio for TikTok, Reels, and Stories.

Guides & Articles for Aspect Ratio Calculator

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