Pixels Per Inch (PPI): 85.33 PPI
PPI2: 7281.21 pixels per inch2
Dot Pitch (DPI): 0.0117" (0.2974 mm)
Screen Width: 11.99" (30.45 cm)
Screen Height: 9.01" (22.90 cm)
Screen Diagonal: 15 inches
Display Size: 108.03 in2 (697.30 cm2)
Total Pixels: 0.786432 Mpx
Aspect Ratio: 1.33:1 (4:3)
PPI Calculator – Pixels Per Inch
Our PPI Calculator helps you calculate the screen's pixel density based on resolution and diagonal size. It's a must-have tool for graphic designers, developers, gamers, and anyone who cares about screen clarity and sharpness.
What is PPI?
PPI (Pixels Per Inch) is a measure of pixel density or resolution on a digital display. A higher PPI value means a sharper and more detailed image. It directly impacts how crisp text and images appear on screens like monitors, smartphones, and laptops.
How to Use the PPI Calculator
- Enter the screen resolution (width × height in pixels).
- Enter the screen size (diagonal in inches).
- Click "Calculate" to find the PPI value.
PPI Formula
PPI = √(Width² + Height²) / Screen Size (in inches)
Example: For a 1920×1080 resolution on a 15.6-inch screen:
√(1920² + 1080²) = √(3686400 + 1166400) = √4852800 ≈ 2202.91
PPI = 2202.91 / 15.6 ≈ 141.22
Why Use Our PPI Calculator?
- Fast and easy: Instant PPI results based on any screen size and resolution.
- Mobile friendly: Works smoothly on smartphones, tablets, and desktops.
- Accurate: Uses the industry-standard formula for precision.
- Free to use: No ads or signup required.
When is PPI Important?
- Comparing display quality (e.g., HD vs. Retina)
- Designing for UI/UX, web, and print media
- Buying a new monitor, tablet, or phone
- Setting up gaming or workstations
Real-Life Use Case
Suppose you're choosing between a 13-inch laptop with 2560×1600 resolution and a 15.6-inch laptop with 1920×1080. Use this calculator to compare PPI and choose the sharper display for graphic work or reading-intensive tasks.
Common PPI Values
Device | Resolution | Size | PPI |
---|---|---|---|
iPhone 13 | 2532×1170 | 6.1" | 460 |
MacBook Pro 13" | 2560×1600 | 13.3" | 227 |
1080p Monitor | 1920×1080 | 24" | 92 |
Related Tools
Frequently Asked Questions (FAQs)
1. What is the ideal PPI for a screen?
For most use cases, 100–150 PPI is standard. For retina-quality displays, PPI > 300 is considered excellent.
2. Is PPI the same as DPI?
No. PPI refers to screen resolution, while DPI (Dots Per Inch) refers to print resolution.
3. Does higher PPI mean better quality?
Generally, yes. Higher PPI provides sharper and more detailed visuals, especially important for high-resolution images or text.
4. How do I measure screen size in inches?
Measure diagonally from one corner of the screen to the opposite corner using a ruler or tape measure.
5. Can I use this for TVs and projectors?
Yes, this calculator works for any display device as long as you have the resolution and screen size.
Conclusion
Our PPI Calculator helps you quickly determine the clarity and pixel density of your screen. Whether you're a designer, buyer, or tech enthusiast, this tool is an essential resource for comparing display quality.