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Keyboard Polling Rate Primer

Tap steadily in the box below. We measure time between keydown events in this browser—a practical way to compare setups, not a certified USB Hz readout from your keyboard firmware.

Estimated reporting cadence

—Hz (approx.)

Tap steadily in the box below—about 6–10 light presses per second—to collect intervals between key events.

  • Median gap

    —ms

  • Min gap

    —ms

  • Max gap

    —ms

  • Samples

    —

Common marketing tiers: 125, 250, 500, 1000, 2000, 4000, 8000 Hz. Gaps near 1 ms suggest ~1000 Hz-class reporting in this pipeline; much larger gaps often mean Bluetooth batching or OS scheduling—not a broken keyboard by default.

Focus here and tap at a steady rhythm (any letter keys)

Choose the layout that matches your OS keyboard. Main keys, navigation cluster (Insert/Home/arrows), and numpad labels follow the selected layout. Holding Shift previews shifted symbols on this layout.

Hz is not the whole story

End-to-end latency includes debounce, transport, and paint time. Use the latency sampler when you care how a key press feels, not only how often events arrive.

Open latency test

Confirm keys, then benchmark

Polling estimates mean little if a switch misses. Walk the full key map, then run a timed test when your setup feels stable.

Run 1-minute typing test

What this does and does not measure

  • • Measures intervals between keydown events the browser receives—not the USB descriptor polling field.
  • • Steady tapping works better than holding one key; auto-repeat would skew gaps.
  • • Compare before/after cable, dongle, or power changes on the same machine and browser profile.
  • • For typing scores, pair this with a timed test—WPM still depends on accuracy and rhythm more than Hz labels.

Browse polling rate guides →Polling vs latency (Keyboard Latency cluster) →Debounce & chatter check →

Keyboard polling rate guides

Articles on Hz basics, 1 kHz vs 8 kHz marketing, Bluetooth batching, and honest browser tests—written for typists who use this polling primer.

View all polling rate blogs