Calculate it. See it. Understand it.
Visual tools for pixels, screens and dimensions.
Nine precise calculators for aspect ratios, screen size, pixel density and print size. Every answer is worked out in your browser, shown clearly, and explained in plain language — no jargon needed to understand it.
Start with a question
Quick aspect ratio
Aspect ratio
16:9
Landscape · 2,073,600 pixels · 2.07 MP
Aspect ratio 16:9.
Aspect & Resolution
Work out proportions, resize without distortion, and see what a crop removes.
Screens & Size
Turn a diagonal into real width and height, compare displays, and measure pixel density.
Pixels & Print
Move between pixels and physical size, and find the resolution a print needs.
What Ratio & Rule covers
These nine tools describe one continuous chain. Pixels have proportions. Proportions become physical shapes once you know a diagonal or a density. Physical size becomes a print once you choose how tightly the pixels are packed. Each calculator hands its values on to the next, so you can follow the chain without retyping anything.
- Pixels
- Proportions
- Resolution
- Physical size
Nothing you type is uploaded. There is no account to create and no server doing the arithmetic — the calculations run entirely in your browser, and values only leave your machine if you deliberately copy a result link to share.