Pixels to Megapixels Calculator – Convert Dimensions to MP

Camera Presets:

Input Width & Height or Raw Pixels

Width (px)

Height (px)

OR Enter Total Raw Pixels Direct

Megapixel Math & Formulas

CSS / Tailwind / HTML

CSS Property

Megapixels = (Width * Height) / 1,000,000;

Tailwind CSS Utility

24 MP = 6000 x 4000 px

HTML Attribute

<img src="photo.jpg" width="6000" height="4000" alt="24MP Image">

Visual Aspect Preview

3:2 Sensor

Scale: Relative Proportions 6000 × 4000

Megapixel Output

Megapixels

24 MP

Total Pixels

24,000,000

Aspect Ratio

3:2

Classification

Full-Frame Sensor

Pixels to Megapixels — Formula, Reference Table & Use Cases

A megapixel (MP) represents one million pixels. Digital camera specifications, smartphone sensor marketing, and photo print size planning all use megapixels as a shorthand for image resolution.

When to use this calculator

Convert a camera sensor's native width×height spec to its megapixel count
Check how many megapixels a video resolution represents (4K = 8.3 MP)
Compare the effective resolution of two cameras with different sensor sizes
Verify that an image export has the required megapixel count for a client or print job
Calculate the file size implications of different MP counts before shooting

Formula

Total Pixels = Width × Height
Megapixels   = Total Pixels / 1,000,000

Megapixel classification guide

< 8 MP — Web and social media. Not suitable for print larger than 4×6".
8–16 MP — Versatile everyday photography. A4 prints at 300 DPI.
16–32 MP — Professional DSLR range. A3 and A2 prints. Cropping flexibility.
32–61 MP — High-resolution mirrorless. Billboard and fine art printing.
61+ MP — Medium-format studio. Extreme detail for fashion and product photography.

Related tools

For the reverse calculation (MP to pixel dimensions), use Megapixels to Resolution Calculator. To check how many megapixels you need for a specific print size, use the DPI Print Size Calculator.

Frequently Asked Questions

Common questions about this tool.

How many pixels are in 1 megapixel? ▼

One megapixel equals exactly 1,000,000 (one million) pixels. A 24 MP image contains 24,000,000 individual pixels. Megapixels are calculated by multiplying width by height and dividing by 1,000,000.

How do you convert resolution dimensions to megapixels? ▼

Multiply pixel width by pixel height, then divide by 1,000,000. Example: 6000 × 4000 = 24,000,000 pixels / 1,000,000 = 24 MP. Formula: MP = (Width × Height) / 1,000,000.

Is more megapixels always better? ▼

Not always. More megapixels produce larger files and require faster processing. For social media, even 4 MP is sufficient. For large-format prints, 24+ MP is beneficial. Megapixels are one of many sensor quality factors — sensor size, aperture, and ISO performance matter equally.

How many megapixels is a 4K video frame? ▼

4K UHD (3840×2160) = 8,294,400 pixels = 8.3 MP per frame. Cinema 4K (4096×2160) = 8.85 MP. 8K UHD (7680×4320) = 33.2 MP.

What is a good megapixel count for a portrait photo shoot? ▼

For commercial portrait photography printed at standard sizes (5×7 to 8×10"), 12 MP is sufficient. For retouching head shots at full resolution in Photoshop or requiring tight crops, 24 MP provides a comfortable margin. Studio photographers often use 45–61 MP for maximum flexibility.