B BLUESKY LABS

Calculator Tools

How to Use the Image Ratio Calculator

Simplify image ratios and resize width or height while keeping the same aspect ratio.

Updated 2026-06-07. Bluesky Labs tools are designed for browser-local workflows whenever the tool supports local processing.

When to Use This Tool

  • Calculating new dimensions for social media posts while maintaining proportions.
  • Resizing website banners without stretching or squashing the original image.
  • Determining the correct aspect ratio for photography and graphic design projects.

Step-by-Step Workflow

  1. Open the tool

    Navigate to the Image Ratio Calculator on the Bluesky Labs website.

  2. Enter inputs

    Enter the current width and height of your existing image into the input fields.

  3. Choose settings

    Specify the new target dimension (either width or height) you wish to achieve.

  4. Run the action

    Click the calculate button to generate the proportional dimensions for the other side.

  5. Save the output

    Copy the resulting dimensions to use in your image editing software.

Best Practices

  • Double-check your initial input dimensions to ensure accurate output calculations.
  • Use the tool to maintain a consistent brand identity across different platform sizes.
  • Round off final results to the nearest whole pixel for better compatibility with web standards.
  • Keep the calculator tab open while editing in your design software for quick reference.

FAQ

What happens if I only change one dimension?

The tool automatically calculates the corresponding dimension to ensure the aspect ratio remains identical.

Can I use this for video dimensions too?

Yes, since video frames also rely on aspect ratios, the calculator works perfectly for calculating video resolutions.