1. What is Image Aspect Ratio?

The aspect ratio of an image describes the proportional relationship between its width and height. It's expressed as two numbers separated by a colon (like 16:9) or as a single decimal value (like 1.7778).

2. How Does the Calculator Work?

The calculator uses the aspect ratio formula:

Where:

• \( \text{Width} \) — Image width in pixels
• \( \text{Height} \) — Image height in pixels

Explanation: The calculator provides both the decimal value and simplified ratio (like 16:9) for better understanding of the proportions.

3. Importance of Aspect Ratio

Details: Aspect ratio is crucial for maintaining proper image proportions when resizing, ensuring compatibility with different displays, and achieving desired visual effects in photography and video.

4. Using the Calculator

Tips: Enter the width and height of your image in pixels. Both values must be positive integers. The calculator will provide the aspect ratio in both decimal and simplified ratio formats.

5. Frequently Asked Questions (FAQ)

Q1: What are common aspect ratios?
A: Common ratios include 1:1 (square), 4:3 (standard TV), 16:9 (HDTV, most monitors), and 3:2 (35mm film).

Q2: How does aspect ratio affect image quality?
A: Using the wrong aspect ratio can cause stretching, cropping, or black bars (letterboxing/pillarboxing).

Q3: Is aspect ratio the same as resolution?
A: No, resolution refers to pixel dimensions (e.g., 1920×1080), while aspect ratio describes the proportion between width and height.

Q4: How do I maintain aspect ratio when resizing?
A: Use aspect ratio constraints in image editing software or calculate new dimensions based on the original ratio.

Q5: What's the difference between display aspect ratio and pixel aspect ratio?
A: Display AR is width:height of the image frame. Pixel AR is width:height of individual pixels (usually 1:1 in digital images).