Calculator Online

Home AI Chat AI Math Solver

NEW

Tools ▾ Category ▾

Pricing Sign In

Calculator Online

Sign In ▾

Your Result is copied!

Advertisement

Screen Size Calculator

Find the dimensions and size of a screen by entering a few key inputs into this calculator.

Screen:

1st Value of Aspect Ratio:

:

2nd Value of Aspect Ratio:

:

Type:

Select Dimensions:

Radius:

in ▾

Advertisement

Related

The screen size calculator gives precise calculations for the size of your device display. Estimate the perfect screen size for your TV, monitor, or mobile according to your entertainment needs. Whether you want to calculate a flat or curved screen size, the calculator provides results in less than a second, helping you experience the best view at an optimal distance from your sitting position.

Screen Size Concept - What Is My Screen Size?

"It is the length of the diagonal of a screen and is expressed in inches." The screen size affects your visual experience, showing how large or small content will appear. When buying a device like a TV, smartphone, or projector, knowing the screen dimensions helps you choose a device that fits your viewing angles and distances.

Viewing Distance:

The following chart shows the optimal distance for viewing your TV or home theater:

Viewing Distance Chart

How To Calculate Screen Size?

If you want to calculate screen size manually, consider the following factors:

For Flat Screen:

Aspect ratio (use the aspect ratio calculator)
Screen diagonal
Screen height
Screen width

Step 1: Determine Aspect Ratio

Aspect ratio is the ratio of width to height:

Aspect Ratio = Width / Height

Step 2: Screen Diagonal Calculations

To calculate the diagonal, measure the distance from one upper corner to the opposite lower corner. Formulas:

Diagonal² = Height² + Width²
Aspect Ratio = Width / Height
Screen Area = Width × Height

Example:

Find the size of a screen with a 16:9 aspect ratio.

Case #1: Diagonal = 3 inches

Height = (9/16) × Width
Diagonal² = Height² + Width² → Diagonal² = (9/16)² × Width² + Width²
Diagonal² = (337/256) × Width² → Width = √(256/337) × 3 ≈ 2.615 inches
Height = (9/16) × Width ≈ 1.47 inches
Screen Area = Width × Height ≈ 3.89 in²

Case #2: Height = 3 inches

Width = Aspect Ratio × Height = (16/9) × 3 ≈ 5.3 inches
Diagonal² = Height² + Width² → Diagonal ≈ √(3² + 5.3²) ≈ 6.09 inches
Screen Area = Width × Height = 5.3 × 3 ≈ 16 in²

Case #3: Width = 3 inches

Height = Width / Aspect Ratio = 3 ÷ (16/9) ≈ 1.68 inches
Diagonal = √(Width² + Height²) ≈ √(3² + 1.7²) ≈ 3.45 inches
Screen Area = Width × Height ≈ 5.1 in²

For Curved Screen:

Curved Monitors

Formulas for curved screens:

Height = Diagonal / √(AR² + 1)
Length = Aspect Ratio × Height
Area = Width × Height
Base Depth = Radius × (1 - cos(Length / (2 × Radius)))

Use these formulas to find unknown measurements such as diagonal, width, height, and base depth.

FAQs:

What Factors Should I Consider When Choosing Screen Size?

Consider the following:

Usage
Resolution
Screen size
Refresh rate
Budget
Lighting conditions

What Size Is A 120” Screen?

For a 120” diagonal with a 16:9 aspect ratio, the dimensions are approximately 105” W × 59” H.

References:

Wikihow.com: Measure Monitor Size

Advertisement

Related

Advertisement

Calculator Online

Get the ease of calculating anything from the source of calculator online

Links

Home Conversion Calculator About Calculator Online Blog Hire Us Knowledge Base Sitemap Sitemap Two

Support

Privacy Policy Terms of Service Content Disclaimer Advertise Testimonials

Email us at

Contact Us

© Copyrights 2026 by Calculator-Online.net