Megapixel Formula:
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The pixel to megapixel conversion calculates the total resolution of an image in millions of pixels. One megapixel equals one million pixels. This conversion helps photographers and designers understand the resolution capability of digital cameras and displays.
The calculator uses the megapixel formula:
Where:
Explanation: The formula multiplies the width and height in pixels to get total pixels, then divides by one million to convert to megapixels.
Details: Megapixel count determines image resolution quality, print size capability, and storage requirements. Higher megapixels mean more detail but larger file sizes.
Tips: Enter the width and height in pixels (must be positive integers). The calculator will output the resolution in megapixels rounded to two decimal places.
Q1: How many megapixels is a 1920×1080 image?
A: 1920 × 1080 = 2,073,600 pixels = 2.07 megapixels.
Q2: What's considered a high megapixel count?
A: As of 2023, 20+ MP is high for smartphones, 30+ MP for DSLRs, and 50+ MP for medium format cameras.
Q3: Do more megapixels always mean better quality?
A: Not necessarily. Sensor size, pixel quality, and lens quality also significantly impact image quality.
Q4: How many megapixels do I need for printing?
A: For an 8×10 print at 300 dpi: 8×300 × 10×300 = 7.2 MP minimum. For larger prints, more megapixels are needed.
Q5: What's the relationship between megapixels and file size?
A: More megapixels generally mean larger file sizes, but compression format (JPEG, RAW) also affects final size.