Sizey: Aspect Ratio Calculator
A menu bar calculator that derives the matching dimension for a chosen aspect ratio.
Handy for designers repeatedly calculating width/height pairs.
A selected ratio and one entered dimension replace repeated manual multiplication.
Keep in mind: It calculates dimensions; it does not resize, crop or export image files. Check rounding against the pixel requirements of your design tool.
Inside the app
Official product images
What you can do
- Width-to-height calculation
- Height-to-width calculation
- Custom aspect ratios
Good for
- Designers checking proportional layout sizes while working.
Consider alternatives for
- People needing a batch image resizer or actual crop previews.
Limitations & considerations
- Captured minimum: macOS 10.13.
- It calculates dimensions; it does not resize, crop or export image files. Check rounding against the pixel requirements of your design tool.
Privacy & permissions
Only numeric dimensions and ratio settings are needed for the described task. No image upload or account workflow is documented.
Sources & review notes Updated Nov 15, 2026
Reviewed by iApp4Me Editorial Team. Recommendations use the linked documentation and attributed accounts; device observations are identified separately.
- US App Store developer description
Complete description, release notes, download price and compatibility metadata captured 2026-11-02.
- Official developer disclosure
Full official cached text read; captured 2026-11-12. App-specific claims distinguished from publisher-wide material.
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