Monitor Hz → ms Calculator
Convert refresh rate to frame delay and see the difference between 60Hz stutter and 240Hz smoothness — live, in your browser.
Refresh Rate
Frame Time
6.94444 ms (exact)
Frame Time
6.94 ms
per rendered frame
vs 60Hz
−9.72 ms
faster per frame
Latency cut
58 %
vs 60Hz monitor
Ghosting Simulator
Drag the slider — watch how motion clarity changes
At 144Hz each frame is 6.9ms — significantly smoother than 60Hz but a trained eye can still detect the discrete steps.
Refresh Rate Comparison
Click any row to simulate that refresh rate above
| Refresh Rate | Frame Time | Saved vs 60Hz | Tier | Best For |
|---|---|---|---|---|
| 60 Hz | 16.67 ms | — | Entry | Office, video, light gaming |
| 144 Hz | 6.94 ms | −9.72 ms | Standard | Casual to competitive FPS |
| 165 Hz | 6.06 ms | −10.61 ms | Sweet Spot | Best price-performance ratio |
| 240 Hz | 4.17 ms | −12.50 ms | Competitive | Ranked & tournament play |
| 360 Hz | 2.78 ms | −13.89 ms | Pro | Top 0.1% competitive scene |
| 540 Hz | 1.85 ms | −14.81 ms | Bleeding Edge | Esports labs & future-proofing |
Is a higher refresh rate worth it?
Frame time (ms) = 1000 ÷ Hz. A 60Hz monitor renders one frame every 16.67ms. If you move your mouse, the screen doesn't update until that 16.67ms window expires — meaning at peak lag your aim is up to 16.67ms out of date. At 240Hz, that worst-case display latency shrinks to 4.17ms.
Why the 60→144Hz jump is the biggest win
Upgrading from 60Hz to 144Hz saves 9.73ms per frame — a 58% reduction in display latency. Research consistently shows nearly every player can feel this difference in competitive shooters. It is the single highest-ROI monitor upgrade available.
The 240Hz competitive edge: Professional CS2 and Valorant players overwhelmingly use 240Hz+ monitors. At 240Hz you receive 4 frames of information for every 1 frame at 60Hz. Fast-moving enemies that appear to "teleport" at 60Hz become smoothly trackable — exactly what the ghosting simulator above demonstrates.
Diminishing returns above 360Hz: The human visual system has difficulty distinguishing frame times below approximately 2.8ms. A 540Hz monitor offers 1.85ms per frame — only 0.93ms faster than 360Hz. The benefit is measurable in controlled studies but marginal for the vast majority of players. 540Hz exists for professional tournament competitors where fractions of a millisecond define careers.
Casual Gaming
144Hz
Huge jump from 60Hz. Budget-friendly. Universally supported.
Ranked Gaming
240Hz
Accepted standard in esports. Visible difference over 144Hz.
Pro Gaming
360Hz+
Tournament standard. Marginal edge over 240Hz but it exists.