# Calculate megapixels of a photo

Calculate the megapixels of a photograph from its resolution. Enter the data in our online calculator and you will automatically know the Mpx of the photo.

If the final figure differs from the one on your camera, it is probably because you have changed the aspect ratio (widescreen, 4:3, etc.) or the brand has rounded the figure in its favor to make it rounder.

## How to calculate the megapixels of a picture

For calculate how many Mpx a photograph has, es imprescindible conocer su resolución. Para esto, podemos utilizar cualquier programa de fotografía convencional (Photoshop, Vista Previa, ...) o incluso si pulsamos sobre las propiedades del fichero, nuestro sistema operativo nos dirá la resolución de la foto.

When we find out the snapshot resolutionThe first number refers to the horizontal resolution while the second number indicates the vertical resolution in pixels. The first number refers to the horizontal resolution while the second number indicates the vertical resolution in pixels.

With these data, we can go to the megapixel calculator above these lines, fill in the necessary fields to make the calculation and click on the Calculate button for to get the Mpx out of a photo.

## What is a megapixel? Definition

One megapixel is a unit of resolution which is equivalent to 1,000,000 pixels.

Many people mistakenly believe that the more megapixels a camera has, the better it is, and this is not true. There are other, much more important factors such as the size of the sensor, the quality of the optics, the amount of light it collects from the environment, sharpness, etc.

The megapixels only indicate the size of the photograph. And just because it is bigger does not mean it is of better quality. There you have the current cell phones, some with cameras of more than 20 Mpx embedded in tiny sensors that meet quite well by the corrections subsequently applied by the software of the mobile, however, let's not fool ourselves because any mid-range camera will be far superior to any iPhone, Xperia Z or Samsung Galaxy of last generation.

We would like to take this opportunity to remind you that resolution is also a unit that is used in displays for calculate your pixel per inch density.

## Megapixel, its abbreviation

Depending on the device, the abbreviation for megapixel can be MP or MPX.

Therefore, if you see that your camera or cell phone has any of the above abbreviations accompanied by a number, you will know that it refers to the resolution in megapixels.