How to use the 1280x720 Aspect Ratio
Start from this size
Width and height are already filled in for this frame.
Change width or height
Change the width or the height. The other numbers update as you type.
Read the size and copy
The line under the form shows 16:9 beside the pixel size.
| Scale | Size | MP | |
|---|---|---|---|
| 25% | 320×180 | 0.0576 | |
| 50% | 640×360 | 0.2304 | |
| 75% | 960×540 | 0.5184 | |
| 100% | 1280×720 | 0.9216 | |
| 150% | 1920×1080 | 2.0736 | |
| 200% | 2560×1440 | 3.6864 |
What is the 1280x720 aspect ratio?
1280×720 simplifies to 16:9. The decimal is 1.7778:1 and the pixel count is 0.9216 megapixels. Orientation is landscape.

16:9 is a named standard on this site.
HD (720p) is listed for broadcast, youtube, streaming. The source below is the document that names this frame.
How it differs from nearby sizes
Half scale is 640×360 (0.2304 MP). Double scale is 2560×1440 (3.6864 MP). Both keep 16:9.
For contrast, 1920×1080 (Full HD (1080p)) is a different shape or density.
Print size at 300 DPI is 4.27 × 2.4 inches. Inches are pixels divided by DPI.
Typical uses
HD (720p) shows up in broadcast, youtube, streaming. 1280×720 stays 16:9 when both sides scale. Phone models are omitted unless a manufacturer page states the pixels.
Open the calculator on this size to read 16:9, or to set one side and get the other in pixels.
Frequently asked questions
Is 1280x720 equal to 16:9?
Yes, after the greatest common divisor. The two sides divide by 80.
How many megapixels is it?
0.9216 MP.
What is a smaller 16:9 size?
640×360 is half on each side.
Can I print it?
Inches = pixels ÷ DPI. At 300 DPI that is 4.27 × 2.4 in.