Monitor Gamma Test
Adjust the slider until stripes blend with solid gray. The slider value is your gamma.
Step back from the screen 4-6 feet, squint slightly, and adjust the slider until the striped left side blends with the solid gray right side. The slider value when they match is your monitor gamma.
Target: gamma 2.2 (sRGB standard)
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Monitor Gamma Test guide
How to use the Monitor Gamma Test accurately
A monitor gamma test measures the relationship between input signal value and displayed brightness. The sRGB standard targets gamma 2.2 — meaning a value of 50% in software should produce roughly 22% perceived brightness on screen. Wrong gamma washes out shadows or crushes highlights, throwing off color accuracy.
This tool uses the classic stripe-to-solid match pattern. The left side has alternating 1px black and white lines that average to 50% brightness when blurred. The right side is solid gray. You adjust the slider to change what gray value the solid side displays.
Monitor Gamma Test FAQ
Common monitor gamma test questions
Checklist
Display checks to confirm
- What Is a Monitor Gamma Test? A monitor gamma test measures the relationship between input signal value and displayed brightness. The sRGB standard targets gamma 2.
- How to Read Your Result Gamma 2.2: Correct sRGB calibration. Most modern desktop monitors target this.
- How to Fix Wrong Gamma Check monitor OSD — most monitors have a Gamma setting (often labeled 1.8/2.0/2.2/2.4). Set to 2.2.
