1. What is Resolution Scale?

Resolution scale is a dimensionless value that represents the ratio between a target resolution and a base resolution. It's commonly used in graphics, video processing, and display technology to calculate how much an image needs to be scaled.

2. How Does the Calculator Work?

The calculator uses the resolution scale formula:

Where:

• \( target\_res \) — Target resolution in pixels
• \( base\_res \) — Base resolution in pixels

Explanation: The formula calculates how many times larger (or smaller) the target resolution is compared to the base resolution.

3. Importance of Resolution Scale

Details: Resolution scaling is crucial for maintaining aspect ratios when resizing images, calculating display scaling factors, and ensuring proper rendering across different screen resolutions.

4. Using the Calculator

Tips: Enter both resolutions in pixels. The values must be positive numbers. The result is a unitless scale factor.

5. Frequently Asked Questions (FAQ)

Q1: What does a scale of 1 mean?
A: A scale of 1 means the target resolution is identical to the base resolution (no scaling needed).

Q2: What does a scale less than 1 indicate?
A: A scale less than 1 means the target resolution is smaller than the base resolution (downscaling needed).

Q3: Can I use this for both width and height?
A: Yes, you can calculate separate scales for width and height, or use one dimension as a reference.

Q4: How is this different from pixel density (PPI)?
A: Resolution scale compares pixel dimensions, while PPI relates physical size to pixel count.

Q5: Can this be used for aspect ratio calculations?
A: While it shows relative size, aspect ratio requires comparing width and height scales separately.