1. What is an Aspect Ratio Calculator?

Definition: This calculator computes the aspect ratio of an image or display based on its width and height dimensions.

Purpose: It helps photographers, videographers, and designers determine the proportional relationship between width and height.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( AR \) — Aspect ratio (unitless)
• \( width \) — Width in pixels
• \( height \) — Height in pixels

Explanation: The calculator provides both the decimal value and simplified ratio (like 16:9) of the aspect ratio.

3. Importance of Aspect Ratio

Details: Aspect ratio is crucial for maintaining proper proportions in images and videos across different display devices and platforms.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

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

Q2: Why does aspect ratio matter?
A: It ensures proper display without stretching or cropping, and maintains artistic intent.

Q3: How do I choose an aspect ratio?
A: Choose based on your display device or platform requirements (e.g., 16:9 for YouTube, 1:1 for Instagram).

Q4: Can I calculate aspect ratio from resolution?
A: Yes, resolution width and height are the values you input (e.g., 1920×1080 = 16:9).

Q5: What's the difference between decimal and ratio formats?
A: Decimal is useful for calculations, while ratio format (like 16:9) is standard for describing displays.