Keyboard Latency Test
Measure your keyboard's input lag, scan rate, and key response time in real time. Press any key to start — every keystroke is tracked and analyzed instantly.
| # | Key | Latency | Rating |
|---|
What is Keyboard Latency?
Keyboard latency is the delay between pressing a key and the action registering on your computer. It's the sum of scan rate, polling rate, debounce time, and system processing — all measured in milliseconds.
How This Test Works
We measure the exact time between keydown and keyup events to calculate average latency, shortest key press, estimated scan rate, jitter (variance), and consistency percentage.
Latency Benchmarks
| Latency | Rating | Use Case |
|---|---|---|
| < 5 ms | Excellent | Professional esports, competitive FPS |
| 5–10 ms | Great | Competitive gaming, fast typing |
| 10–15 ms | Good | Casual gaming, office work |
| 15–25 ms | Average | General use, basic keyboards |
| > 25 ms | Poor | May impact fast-paced games |
How to Reduce Input Lag
- Use a wired connection — eliminates wireless delay.
- Set polling rate to 1000Hz+ via manufacturer software.
- Lower debounce time to 2–3ms for competitive gaming.
- Close background programs and avoid USB hubs.
Frequently Asked Questions
What is a good keyboard latency?
Under 5ms is excellent for esports. 5–10ms is great for competitive play. 10–15ms is fine for casual use. Above 20ms may be noticeable in fast games.
Are optical switches faster?
Yes. Optical switches use light instead of physical contacts, eliminating debounce delay and achieving near-zero hardware latency.
Is this test accurate?
Browser-based tests measure event processing latency, not total hardware-level latency. For best results, test with minimal programs running in a Chromium-based browser.