Master Your Dimensions with the Aspect Ratio Calculator

Whether you're a web developer, graphic designer, or videographer, maintaining the correct aspect ratio is crucial for visual consistency. Our Aspect Ratio Calculator is a powerful tool designed to help you effortlessly calculate and convert dimensions for any project. From resizing a simple image to fitting a video into a specific container, this tool provides the precision you need.

How It Works

The calculator is built on fundamental mathematical principles to ensure accuracy. It takes your original dimensions (width and height) and, based on your chosen mode, calculates the new dimensions, crop offsets, or padding required to match your target. The interactive visualizer provides immediate feedback, helping you see the results of your calculations in real-time.

Key Features

  • Three Calculation Modes:
    • Resize: Maintain the original aspect ratio while scaling to a new width or height.
    • Crop: Calculate the dimensions needed to crop your content to a new aspect ratio without distortion.
    • Fit: Determine the size of your content when fitted inside a container, calculating the necessary padding (letterboxing/pillarboxing).
  • Live Visualizer: See a graphical representation of your original, target, and result dimensions, making it easy to understand the changes.
  • Quick Presets: Instantly apply common aspect ratios like 16:9 (Widescreen), 4:3 (Standard), 1:1 (Square), Instagram Post/Story, and A4 Paper.
  • Detailed Results: Get more than just new dimensions. The tool also provides the simplified ratio (e.g., 16:9), total megapixels, diagonal length, and the corresponding CSS `aspect-ratio` property.
  • One-Click Copy: Easily copy any result to your clipboard for use in your CSS, design software, or other applications.

How to Use the Calculator

  1. Step 1: Select Your Mode
    Choose between 'Resize', 'Crop', or 'Fit' based on what you want to achieve.
  2. Step 2: Enter Original Dimensions
    Input the width and height of your source image, video, or element.
  3. Step 3: Provide Target Dimensions
    Depending on the mode, enter the target width, height, or aspect ratio you need to match.
  4. Step 4: Analyze the Results
    The tool will instantly display the calculated dimensions, ratio, and other useful data. The visualizer will update to reflect the changes.
  5. Pro Tip: Use the preset chips for lightning-fast calculations of standard ratios.

Find Our Tool

Aspect Ratio Calculator, Image Resizer, Video Aspect Ratio, 4:3 to 16:9 Converter, Pixel Calculator, Screen Ratio, Responsive Design Tool, Image Dimensions Calculator, CSS aspect-ratio, Crop Calculator.