Calculate megapixels from image dimensions or find the ideal resolution for your desired megapixel count. Perfect for photographers, designers, and anyone working with digital images.
A megapixel (MP) is one million pixels. It's a unit used to measure the resolution of digital images and cameras. The total number of megapixels is calculated by multiplying the width and height of an image in pixels, then dividing by one million.
To calculate megapixels, simply multiply the width and height of your image in pixels, then divide by 1,000,000. For example, a 1920×1080 image has 2,073,600 pixels, which equals 2.07 megapixels.
Modern smartphones typically have cameras ranging from 12MP to 108MP. Professional DSLR and mirrorless cameras often range from 24MP to 100MP or more. The megapixel count affects the level of detail and the maximum print size of your photos.
While megapixels determine resolution, they're not the only factor in image quality. Sensor size, lens quality, image processing, and lighting conditions all play crucial roles in the final image quality. More megapixels don't always mean better photos.
For high-quality prints at 300 DPI: 2MP for 4×6", 5MP for 8×10", 8MP for 11×14", 12MP for 16×20", and 20MP or more for larger prints. For web use, even 2MP images are often sufficient for most purposes.
Aspect ratio is the proportional relationship between width and height. Common ratios include 16:9 (widescreen), 4:3 (traditional), 1:1 (square), and 9:16 (vertical/portrait). Understanding aspect ratios helps in choosing the right dimensions for your specific needs.