SCREEN
SCOPE
Measure. Compare. Optimize.
Home
Screen Tools
Blog
About
Check My Screen
100% Free · No Sign-Up
Free Screen
Tools
Powerful tools to analyze and optimize your screen experience. Instant results on any device.
Screen Checker
Aspect Ratio
PPI Calculator
Refresh Rate
Color Contrast
Advertisement
Ad Space – 728×90 Leaderboard
Screen Size Checker
Instantly detect your complete screen and display specifications.
Screen Resolution
—
Detecting…
Viewport Size
—
Browser window area
Pixel Ratio (DPR)
—
Device pixel ratio
Aspect Ratio
—
—
Device Type
—
—
Orientation
—
—
Copy All Specs
Refresh
Download Report
Aspect Ratio Calculator
Enter any two dimensions to calculate the aspect ratio, or use presets.
Width (px or in)
×
Find missing dimension
→
—
16:9
Widescreen Standard
Preset Ratios
16:9
16:10
4:3
21:9
32:9
1:1
9:16
3:2
PPI Calculator
Calculate pixels per inch (pixel density) for any screen or device.
Width (px)
Height (px)
Screen Size (inches, diagonal)
94
Pixels Per Inch (PPI)
Standard
2,073,600
Total Pixels
0.270mm
Dot Pitch
PPI Guide:
<72 PPI: Low quality. 72–100: Standard (typical office monitors). 100–160: Good (high-quality monitors). 160–220: Excellent (most laptops). 220+: Retina/Ultra-HD quality (flagship phones, pro laptops).
Advertisement
Ad Space – 336×280 Rectangle
Refresh Rate Test
Measure your monitor's actual refresh rate using requestAnimationFrame.
—
Hz (Frames per second)
Click "Start Test" to measure your monitor's refresh rate. The test takes about 2 seconds.
0
60
120
165
240
360
Start Test
Reset
Color Contrast Checker
Check WCAG accessibility compliance between foreground and background colors.
Foreground (Text) Color
Background Color
Sample Text Heading
This is body text. Make sure your text has enough contrast for readability and accessibility.
Contrast Ratio
21:1
Maximum
WCAG AA
✓
Pass
WCAG AAA
✓
Pass
WCAG Guidelines:
AA requires 4.5:1 for normal text, 3:1 for large text. AAA requires 7:1 for normal text, 4.5:1 for large text.
Done!