Screen Resolution Converter
Scale any resolution up or down while preserving aspect ratio. Use presets, type a custom size, or set a target width, height, or percentage.
Input
Results
Aspect-Preserving Scale Table
| Scale | Resolution | Pixels | Megapixels |
|---|
Useful for export presets, rendering pipelines, and responsive assets. Every row keeps the same aspect ratio as the source.
Physical Size at Common Pixel Densities
| PPI | Width | Height | Use Case |
|---|
This converts target pixels into physical dimensions. It helps when planning printed output or estimating apparent UI scale across displays.
Resolution Reference
| Label | Resolution | Aspect Ratio | Megapixels |
|---|---|---|---|
| 480p | 854 x 480 | 16:9 | 0.41 MP |
| 720p (HD) | 1280 x 720 | 16:9 | 0.92 MP |
| 1080p (FHD) | 1920 x 1080 | 16:9 | 2.07 MP |
| 1440p (QHD) | 2560 x 1440 | 16:9 | 3.69 MP |
| 4K UHD | 3840 x 2160 | 16:9 | 8.29 MP |
| 8K UHD | 7680 x 4320 | 16:9 | 33.18 MP |
| UWQHD | 3440 x 1440 | 43:18 | 4.95 MP |
About This Tool
The Screen Resolution Converter helps you resize display dimensions without introducing distortion. It is designed for designers, developers, video editors, and anyone preparing assets for different devices. Instead of trial-and-error resizing, you can enter a source resolution and get mathematically correct targets in one step.
The core rule is simple: keep the aspect ratio constant. Aspect ratio is the relationship between width and height, such as 16:9 or 4:3. If the ratio stays constant, content scales cleanly. If the ratio changes, the image appears stretched, squashed, or requires cropping. This tool maintains the ratio automatically when lock mode is enabled.
In addition to raw dimensions, the tool reports pixel count and megapixels so you can estimate visual detail, performance cost, and storage impact. The physical size table converts pixels to inches and centimeters at common PPI values, which is useful for print planning and UI sizing assumptions. All calculations run entirely in your browser for speed and privacy.
Formula summary: if ratio is r = width / height, then height = width / r and width = height * r. Megapixels are (width * height) / 1,000,000.
FAQ
Can I convert 1080p to 4K with this?
Yes. Set source to 1920 x 1080 and target to 3840 x 2160 or scale to 200%.
Why does my custom target change when lock is enabled?
Lock mode enforces a fixed aspect ratio, so editing one side recalculates the other side to avoid distortion.
Is this only for video resolutions?
No. It works for any pixel dimensions, including images, app mockups, game assets, and UI screenshots.
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Screen Resolution Converter FAQ
How do you scale a resolution without distortion?
Keep the aspect ratio constant. Multiply width and height by the same scale factor, or solve one dimension from the other using ratio math.
How do I calculate a matching height from width?
Use Height = Width / (Aspect Width / Aspect Height). For example, with 16:9 and width 2560, height is 2560 / (16/9) = 1440.
What is megapixels for a resolution?
Megapixels are total pixels divided by one million. Example: 1920 x 1080 = 2,073,600 pixels, which is about 2.07 megapixels.
Does this tool upload my data?
No. All calculations run locally in your browser. Nothing is uploaded or stored.