Display & Screen Calculators
A comprehensive collection of free, instant, browser-based calculators for display engineers, designers, shoppers, and digital creators.
Core Display & Screen Calculators
PPI Calculator
Compute pixels per inch from screen resolution and physical diagonal. Includes Retina estimate and dot pitch.
Pixel Density Calculator
Calculate pixel density, total display megapixels, aspect ratio, and visual sharpness categories.
Monitor PPI Calculator
Calculate computer monitor pixel density, 20/20 viewing distance, and recommended OS scaling.
Screen Size Calculator
Calculate exact physical width, height, surface area, and diagonal dimensions for any screen aspect ratio.
Aspect Ratio Calculator
Simplify resolution ratios (16:9, 16:10, 21:9, 32:9), find decimal proportions, and resize dimensions.
Dot Pitch Calculator
Convert between PPI and physical dot pitch in millimeters and microns (μm). Check subpixel sizing.
Viewing Distance Calculator
Calculate minimum viewing distance based on 20/20 human eye resolution (1 arcminute) and THX guidelines.
Resolution & Device Specific Tools
4K PPI Calculator
Explore pixel density, dot pitch, and optimal viewing distances across all 4K UHD screen sizes (24″ to 85″).
8K PPI Calculator
Analyze pixel density and resolving limits for 8K UHD displays (33.2 Million Pixels) from 32″ to 98″.
MacBook Display PPI
Reference table and density analysis for all Apple Silicon MacBook Air, MacBook Pro, iMac, and Studio Displays.
iPhone 17 PPI Specs
Pixel density, display resolution, and Retina analysis for the iPhone 17 and iPhone 17 Pro lineups.
Resolution Comparison Guides
1080p vs 1440p PPI
Compare Full HD (1080p) vs QHD (1440p) pixel density across 24″ and 27″ monitors, with GPU demands and 77.8% pixel jump.
1440p vs 4K PPI
The desktop sharpness showdown: compare 1440p vs 4K UHD pixel density, 2.25× pixel count differences, and scaling.
4K vs 8K PPI
Ultra HD density comparison: 4K vs 8K PPI across 32″ to 85″ screens and 20/20 vision visual acuity limits.
1080p vs 4K PPI
The 4× pixel density upgrade guide: compare 1080p vs 4K PPI, integer nearest-neighbor scaling, and text crispness.
Print Resolution & Technical Guides
DPI & Print Size Calculator
Convert digital image pixels to physical print inches and centimeters at 300 DPI, 240 DPI, or custom printer settings.
PPI vs DPI Explainer
Clear guide on digital screen pixel density (PPI) vs physical printer ink droplet density (DPI).
What PPI is Retina?
Understand the optical science behind Retina displays and why distance dictates visual perception.
PPI from Inches & Resolution
Step-by-step formula breakdown with worked examples for calculating PPI from diagonal dimensions.
Screen Diagnostics & Health Checks
Dead-Pixel Test
Inspect your monitor, laptop, phone, or TV for stuck and dead pixels with six fullscreen solid colours. Manual visual check, flash-free.
Refresh-Rate Test
Estimate your display Hz from real browser frame timing with jitter analysis, plus a smooth gliding-bar motion test.
Explore 100+ Device Display Specifications
Browse our searchable database of smartphones, laptops, tablets, monitors, TVs, and handheld gaming consoles.
Display Specs by Device Category
Smartphones
iPhone, Samsung Galaxy, Google Pixel, OnePlus, Xiaomi, and Sony display specs.
💻Laptops
MacBook Pro, MacBook Air, Dell XPS, ThinkPad, Surface, and ASUS OLED screens.
📟Tablets
iPad Pro, iPad Air, Galaxy Tab S10, Surface Pro, and Pixel Tablet pixel densities.
🖥️Monitors
4K, 5K, 6K, 1440p, Ultrawide, and OLED gaming monitor pixel densities.
📺Televisions
4K and 8K OLED, Mini-LED, and QLED TVs with optimal viewing distance specs.
🎮Handheld Consoles
Steam Deck OLED, Asus ROG Ally, Legion Go, Switch OLED, and Ayaneo specs.