Screen Resolution Calculator
Enter a screen resolution to see its megapixels, aspect ratio and common name, such as Full HD or 4K UHD.
Resolution
Common name: 4K UHD
Megapixels: 8.29
Aspect ratio: 16:9
How to use this calculator
Enter your values, read the result, and use the reset button to start again.
Formula
Megapixels = (Width x Height) / 1,000,000. Aspect ratio comes from dividing both dimensions by their GCD.
Frequently asked questions
Is 3840 x 2160 the same as 4K?
3840 x 2160 is commonly called 4K UHD. True cinema 4K is 4096 x 2160, which is a different resolution.