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Refresh Rate Tester
Check your monitor's real-time refresh rate (Hz) and frame rate performance.
Calculating...
Screen Refresh Rate
Frames per second
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Testing active
How it works
This tool counts how many frames your browser renders in one second using the `requestAnimationFrame` API. Since browsers synchronize painting with your monitor's refresh rate (V-Sync), this number accurately reflects your screen's Hertz (Hz).
Common Rates
- 60 Hz: Standard monitors and most phones.
- 75 Hz: Common budget gaming monitors.
- 90/120 Hz: High-end phones (ProMotion) and improved monitors.
- 144 Hz+: Dedicated gaming monitors for esports.