Loading…
Type a size and get its simplest ratio, with a decimal and the nearest common ratio when the exact one is unusable. Pick a ratio and one side and get the other, rounded to whole pixels and honest about the rounding. And when the real question is what a platform wants, the size guide lists the recommended pixels for each use — with the aspect ratio, which outlives them.
16:9
The simplest whole-number form of 1,920 × 1,080
1.78:1
As a decimal
Landscape
Orientation
2.1 MP
Megapixels
The ratio is exact. When the exact answer has awkward numbers — 1366×768 is really 683:384 — the nearest common ratio is named, so you can see what the size is trying to be.
Fill in the fields. There is nothing to upload because there is nothing to send — the numbers you enter never leave this tab.
The arithmetic runs in your browser, on your own device, and the answer updates with every keystroke. Nothing is sent anywhere — so there is no record of what you earn, what you owe, or what you are thinking of buying.
One press puts it on your clipboard, ready to paste where you need it. There is no file to download — the result is text, not a document. Nothing is remembered — reload and the fields go back to their defaults, so copy anything you want to keep.