How to use it
- Enter the screen width in centimeters.
- Enter the screen height in centimeters.
- Click “Calculate” to see diagonal and area.
An LCD screen’s diagonal tells you the overall viewing size, while the area shows how much surface is available for graphics or touch interaction. This calculator takes the two dimensions you already know – width and height in centimeters – and instantly returns both values. Knowing the diagonal helps you compare models, choose mounts, or verify that a replacement panel matches the original. The area is useful for designers estimating pixel density or for installers planning space. Simply type the measurements, hit calculate, and read the results: the diagonal is expressed in centimeters, and the area in square centimeters. You can also copy the numbers for spreadsheets or share them with teammates. No hidden fees, no sign‑up, just a quick, reliable answer for any LCD project.
Pro tips
- Allow a small margin (1‑2 cm) for bezel thickness when measuring.
- Round the diagonal to one decimal place for easier comparison.
- Verify that width and height are measured on the same side of the screen.
- Double‑check units; entering inches will give incorrect results.
Real-life examples
- A home theater enthusiast needs the diagonal to pick the right wall mount.
- An office planner calculates screen area to ensure sufficient workspace for touch‑enabled kiosks.
- A DIY hobbyist verifies that a replacement LCD matches the original dimensions before ordering.
Case study
Maria was ordering a new monitor for her graphic studio. She measured the old screen (30 cm × 40 cm) and used the calculator, which showed a 50 cm diagonal and 1,200 cm² area. Confident the new model matched, she avoided a costly return and installed it the same day.