Screen wallpaper calculator

Wallpaper Aspect Ratio Helper

Wallpaper needs depend on the screen shape. Use this helper to compare desktop, phone, tablet, and ultrawide ratios before exporting.

16:9

Live preview follows the selected ratio.

Calculator

Calculate The Missing Dimension

Choose a ratio, enter width or height, and the calculator fills the matching dimension while keeping the image or video proportional.

Simplified ratio 16:9
Decimal 1.7778
Current size 1920 x 1080

Extra guidance

Helpful Details For This Calculator

Wallpaper Export Choices

A wallpaper can look soft or cropped if one file is used for every device. Start with the screen shape, then export a size that matches the device class.

  • Desktop: 1920 x 1080 or 3840 x 2160 for 16:9 monitors.
  • Phone: use a tall portrait export and keep faces or text away from the top and bottom edges.
  • Ultrawide: export a separate wide crop instead of stretching a 16:9 image.

Common Wallpaper Aspect Ratio Sizes

Use these sizes as starting points. Exact platform requirements can change, so treat the calculator as the proportional reference and check the final upload screen before publishing.

Use case Pixel size Ratio
Full HD desktop 1920 x 1080 16:9
4K desktop 3840 x 2160 16:9
Phone wallpaper 1170 x 2532 195:422
Ultrawide 3440 x 1440 43:18

Generated Size Table

The table below updates when you choose a new ratio. It is useful for planning responsive images, thumbnails, and video exports.

Width Matching height Size

Practical Tips

Design larger than the target when possible.

Keep the subject centered for devices that crop slightly.

Use separate exports for desktop and phone.

Frequently Asked Questions

What aspect ratio is best for desktop wallpaper?

Most standard desktop monitors use 16:9, with common wallpaper sizes such as 1920 x 1080 and 3840 x 2160. Ultrawide monitors often need a wider crop such as 3440 x 1440.

Should phone wallpaper use the same ratio as desktop wallpaper?

No. Phone wallpapers are usually tall portrait shapes, so export a separate version instead of cropping a desktop wallpaper automatically.

Visual Ratio Reference

This reference chart shows how common frames compare. Use it when deciding whether a creative should be wide, square, portrait, or ultrawide.

Comparison chart for common aspect ratios including 16:9, 9:16, 1:1, 4:5, and 21:9