1. What is Aspect Ratio?

Aspect ratio is the proportional relationship between the width and height of an image or screen. It is expressed as two numbers separated by a colon (e.g., 16:9), representing width and height respectively.

2. How Does the Calculator Work?

The calculator uses the aspect ratio formula:

Where:

• Width — Image width in pixels
• Height — Image height in pixels

Explanation: The calculator computes the decimal ratio and simplifies it to the nearest whole number ratio (e.g., 1920×1080 becomes 16:9).

3. Importance of Aspect Ratio

Details: Aspect ratio is crucial in photography, videography, web design, and screen manufacturing as it determines how content is displayed and affects composition, cropping decisions, and compatibility across different devices.

4. Using the Calculator

Tips: Enter the width and height of your image in pixels. Both values must be positive integers greater than zero. The calculator will display both the decimal ratio and simplified ratio.

5. Frequently Asked Questions (FAQ)

Q1: What are common aspect ratios?
A: Common ratios include 4:3 (standard definition), 16:9 (HD and UHD), 1:1 (square), and 21:9 (ultrawide).

Q2: How does aspect ratio affect image quality?
A: Aspect ratio doesn't directly affect quality but determines how an image fits on different screens. Incorrect aspect ratio can cause stretching, cropping, or black bars.

Q3: Can I calculate aspect ratio from megapixels?
A: No, megapixels represent total pixels (width × height), but don't reveal the proportion between dimensions.

Q4: How do I maintain aspect ratio when resizing?
A: When resizing, lock the aspect ratio to prevent distortion. Most editing software has a "constrain proportions" option.

Q5: What's the difference between aspect ratio and resolution?
A: Aspect ratio is the proportion (e.g., 16:9), while resolution is the pixel dimensions (e.g., 1920×1080). Multiple resolutions can share the same aspect ratio.