1. What is Aspect Ratio?

The aspect ratio of an image or screen is the proportional relationship between its width and height. It's expressed as two numbers separated by a colon (e.g., 16:9) or as a decimal value (e.g., 1.777).

2. How Does the Calculator Work?

The calculator uses the aspect ratio formula:

Where:

• Width — Horizontal dimension in pixels
• Height — Vertical dimension in pixels

Explanation: The calculator divides the width by the height to get the decimal aspect ratio, then simplifies the ratio to its smallest whole number equivalent.

3. Common Aspect Ratios

Common Ratios:

• 1:1 — Square (Instagram photos)
• 4:3 — Traditional TV and computer monitors
• 16:9 — Widescreen HDTV and YouTube
• 21:9 — Ultra-wide cinema format

4. Using the Calculator

Tips: Enter the width and height in pixels (must be positive integers). The calculator will return both the decimal ratio and the simplified ratio.

5. Frequently Asked Questions (FAQ)

Q1: Why is aspect ratio important?
A: Aspect ratio affects how content is displayed and ensures proper scaling without distortion across different devices.

Q2: What's the difference between 16:9 and 4:3?
A: 16:9 is wider (more rectangular) while 4:3 is more square. 16:9 is better for widescreen content while 4:3 was standard for older TVs.

Q3: How do I choose the right aspect ratio?
A: It depends on your display device and content type. For modern displays, 16:9 is most common.

Q4: Can aspect ratio affect image quality?
A: Using the wrong aspect ratio can cause stretching, cropping, or black bars, but doesn't directly affect resolution.

Q5: What's the aspect ratio of a smartphone?
A: Modern smartphones typically use 19.5:9 or similar tall ratios to accommodate larger screens.