1. What is Image Resolution?

Image resolution refers to the total number of pixels in an image, calculated by multiplying the width and height dimensions. It determines the amount of detail an image contains and affects its quality and file size.

2. How Does the Calculator Work?

The calculator uses the image resolution formula:

Where:

• \( \text{image\_res} \) — Total number of pixels in the image
• \( \text{width} \) — Width of the image in pixels
• \( \text{height} \) — Height of the image in pixels

Explanation: The formula simply multiplies the horizontal and vertical pixel counts to determine the total number of pixels in the image.

3. Importance of Image Resolution

Details: Higher resolution images contain more detail and can be printed at larger sizes without becoming pixelated. Resolution affects both image quality and file size, with higher resolution images requiring more storage space.

4. Using the Calculator

Tips: Enter the width and height of your image in pixels. Both values must be positive integers. The calculator will compute the total number of pixels in the image.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between resolution and pixel dimensions?
A: Pixel dimensions refer to the width and height in pixels, while resolution is the product of these dimensions (total pixels).

Q2: How does resolution relate to image quality?
A: Higher resolution generally means better quality, but quality also depends on the original image source and compression.

Q3: What are common image resolutions?
A: Common resolutions include 1920×1080 (Full HD), 3840×2160 (4K), and 7680×4320 (8K).

Q4: Does higher resolution always mean better?
A: Not necessarily - higher resolution means larger file sizes and may be unnecessary for certain uses like web display.

Q5: How does resolution affect printing?
A: Higher resolution allows for larger prints without visible pixels. A general rule is 300 PPI (pixels per inch) for high-quality prints.