Skip to main content

Free image, PDF & developer tools. No account needed.

HSQ ToolsHSQTools

Aspect Ratio Calculator

Calculate aspect ratio from width and height dimensions. Find simplified ratios for images and video.

Share

Drag & drop an image to auto-fill size

or tap to browse from your device

Optional: pick an image to detect width & heightLarge files may exceed processing limits

Was this tool helpful?

Quick feedback helps us fix issues and improve Aspect Ratio Calculator.

Reducing dimensions to a ratio

Positive whole-number width and height are divided by their greatest common divisor. You can select a browser-readable image to fill its dimensions.

Output behavior and limits

A ratio describes shape, not print density or file size. Picking a file here reads dimensions locally; it does not resize or upload the image.

1920 by 1080 reduces to 16:9. Use Resize Image for a new pixel size or Crop Image when the destination needs a different shape.

Before replacing your original

  • Processing runs locally in this browser; keep a copy of the source input.

Processing details

Runs in your browser. File handling policy

Implementation and guidance reviewed .

Relevant guides

Related tools

Continue with another step in your workflow.

Browse all
Calculators
Percentage Calculator
Calculate what percentage one number is of another. Quick percentage math for reports and analysis.
Open tool
Calculators
Age Calculator
Calculate exact age in years, months, and days from a birth date. Uses calendar dates rather than a fixed number of days per year.
Open tool
Image Tools
Image Resizer
Resize images to custom width and height for free. No signup. Clear server results when you finish.
Open tool
Text Tools
Word Counter
Count words, characters, and characters without spaces in any text. Perfect for essays, articles, and social posts.
Open tool
Text Tools
Character Counter
Count characters with and without spaces. Ideal for tweets, meta descriptions, and character-limited fields.
Open tool