1. What is Photo Resolution?

Photo resolution in megapixels represents the total number of pixels in an image, calculated by multiplying the width by the height in pixels and dividing by one million. It's a key metric for determining image quality and detail.

2. How Does the Calculator Work?

The calculator uses the resolution formula:

Where:

• \( Width \) — Image width in pixels
• \( Height \) — Image height in pixels
• \( 1,000,000 \) — Conversion factor from pixels to megapixels

Explanation: The formula calculates the total area of the image in millions of pixels, giving you the resolution in megapixels.

3. Importance of Resolution Calculation

Details: Knowing your photo's resolution helps determine its suitability for printing, digital display, and editing. Higher resolution images contain more detail and can be printed at larger sizes.

4. Using the Calculator

Tips: Enter the width and height of your image in pixels. Both values must be positive integers (typically ranging from hundreds to tens of thousands for digital photos).

5. Frequently Asked Questions (FAQ)

Q1: What's considered a high-resolution image?
A: Generally, images with 8MP or more are considered high resolution, suitable for large prints. 12MP+ is standard for modern smartphones.

Q2: How does resolution affect print size?
A: As a rule of thumb, divide each dimension by 300 to get maximum print size in inches at 300 DPI (high quality).

Q3: Does higher MP always mean better quality?
A: Not necessarily. Sensor size, pixel quality, and lens quality also significantly impact image quality beyond just resolution.

Q4: What's the resolution of 4K images?
A: 4K resolution is typically 3840×2160 pixels, which equals approximately 8.3 megapixels.

Q5: How can I find my image's dimensions?
A: Right-click the image file and check properties, or open it in an image editor and look at the image size information.