Aspect Ratio Calculator
Simplify a width and height into its aspect ratio, or resize keeping the ratio.
About the Aspect Ratio Calculator
Whether you are comparing options or just need a quick check, the Aspect Ratio Calculator delivers an accurate result instantly, with every input editable so you can model your own scenario.
Screen decisions — size, resolution, pixel density and viewing distance — shape how comfortable a phone, laptop or TV is to use. This Aspect Ratio Calculator computes one of these display figures so you choose the right device.
The calculation applies the standard display metrics: resolution in pixels, aspect ratio, pixel density (PPI), and the viewing distances recommended for TVs and monitors.
For TV buyers in Pakistan, the size-to-distance relationship matters most: a 55-inch TV needs a viewing distance of roughly 2–3 metres. Sitting too close to a large screen, or too far from a small one, ruins the experience.
Pixel density (PPI) explains why a small phone screen looks sharp while a large TV at the same resolution looks soft. This calculator makes those comparisons concrete.
Come back to the Aspect Ratio Calculator whenever your numbers change; because everything runs live in your browser, you can re-run it as many times as you need at no cost.
How to use the screen calculator
- 1
Enter the screen size, resolution or distance as labelled.
- 2
Read the calculated metric — PPI, aspect ratio or recommended distance.
- 3
Use the result when comparing devices.
Frequently Asked Questions
What is the aspect ratio of 1920×1080?
1920:1080 simplifies to 16:9 — the standard for HD video and most TV content.
What is a good pixel density (PPI)?
For phones, 300+ PPI looks sharp to most eyes. For monitors, 90–110 PPI is typical at normal viewing distance; for TVs viewed from 2–3 metres, 60–80 PPI is sufficient.