1. What is Megapixel Calculation?

Megapixel calculation determines the total number of pixels in an image or display by multiplying its width and height in pixels, then dividing by one million. This measurement helps quantify resolution quality.

2. How Does the Calculator Work?

The calculator uses the megapixel formula:

Where:

• \( Width \) — Horizontal resolution in pixels (2560)
• \( Height \) — Vertical resolution in pixels (1440)

Explanation: For 2560×1440 resolution, the calculation is (2560 × 1440) ÷ 1,000,000 = 3.69 megapixels.

3. Importance of Megapixel Calculation

Details: Megapixel count helps compare camera resolutions, determine print quality potential, and understand image detail capabilities. Higher megapixels generally mean more detail but larger file sizes.

4. Using the Calculator

Tips: This calculator is pre-set for 2560×1440 resolution (common QHD/WQHD displays). The values are fixed to demonstrate this specific resolution's megapixel count.

5. Frequently Asked Questions (FAQ)

Q1: What is 2560×1440 resolution commonly called?
A: This is known as QHD (Quad HD) or WQHD (Wide Quad HD), offering four times the resolution of 720p HD.

Q2: How does 3.69 MP compare to camera resolutions?
A: Most modern smartphones have much higher resolutions (12MP+), but pixel size and quality also affect image results.

Q3: Is higher megapixel count always better?
A: Not necessarily. More megapixels can mean larger files without quality improvement if the sensor size doesn't increase proportionally.

Q4: What's the pixel density of a 2560×1440 27" monitor?
A: Approximately 109 PPI (pixels per inch), calculated as √(2560² + 1440²) / 27.

Q5: How does this compare to 4K resolution?
A: 4K (3840×2160) is about 8.3 MP - more than double the resolution of 2560×1440.