Current refresh rate
Active display timing
—Hz
Refresh rate
test.
Measure the refresh rate your display is actively presenting, then look at the motion and frame timing behind the number.
Measure my screenA browser timing test gives you a practical baseline for the screen in front of you. It does not change your system settings or replace a hardware measurement.
- 60 Hz
- about 16.67 ms per frame
- 144 Hz
- about 6.94 ms per frame
- 240 Hz
- about 4.17 ms per frame
Live refresh rate.
Watch the browser measure the display you are using right now. The reading updates locally from the timing between animation frames.
Starting a local frame measurement…
Measuring
Frame stats
Rolling measurements
- Current FPS
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- Maximum FPS
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- Minimum FPS
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- Average FPS
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Motion test
Compare three speeds
Motion preview is unavailable in this browser.
Frame time
Recent frame intervals
Frame-time chart is unavailable in this browser.
on timeover 20 ms
Display profile
Interpreted from the reading
- Frame interval
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- Frames per second
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- Stability
- Waiting
This is a browser timing estimate of the active presentation rate. It does not change your system setting; if the result is lower than expected, check the display mode, cable, browser acceleration, and power profile.
What does your display measure?
Three related numbers describe how a screen turns a signal into motion. Keeping them separate makes the result easier to read.
Refresh rate (Hz)
Hz is how many times the panel can refresh its image in one second. A 60 Hz display refreshes about every 16.67 ms; a 144 Hz display refreshes about every 6.94 ms.
Frame rate (FPS)
FPS is how many frames the browser presents each second. Because animation frames usually follow display sync, this test observes the active presentation rate rather than changing a graphics setting.
Frame time
Frame time is the interval between frames. Consistent intervals matter as much as the average: a few long pauses can feel like stutter even when the average FPS looks healthy.
Check it in three steps.
Use the live dashboard with your normal display setup. The best result is the one that reflects how you actually use the screen.
Set the highest mode
Open your system display settings and select the highest refresh rate available. Windows usually places it under Advanced display; macOS lists it beside the display settings.
Watch the reading settle
Let the measurement run for a few seconds. If the result is lower than the mode you selected, check the cable, browser hardware acceleration, and whether another power profile is limiting the display.
Compare the motion
Watch the three moving lanes and compare their edges. Higher refresh rates should make motion feel more continuous, while dropped frames appear as uneven movement and longer frame-time bars.
The useful ranges.
There is no single best number for every screen. The right target depends on the content, hardware, and response you want.
60 Hz
The everyday baseline for documents, browsing, and most video. It is also a useful reference point when comparing a high-refresh mode.
16.67 msper frame120 / 144 Hz
A visible step up for scrolling, animation, and games. Motion is more continuous and input feedback can feel more immediate.
6.94–8.33 msper frame240 Hz
A competitive target where small timing differences matter. The improvement is more subtle above 144 Hz, but motion remains very responsive.
4.17 msper frameVariable refresh
VRR matches the display cadence to changing frame output, helping reduce tearing and uneven motion when the frame rate moves around.
VRRadapts to the signalChoose the right target.
Refresh rate is useful when it serves the task. Use these starting points when deciding what to verify.
Office and web
60 Hz is sufficient for static work, while 90–120 Hz can make scrolling and window movement feel easier to follow.
Competitive gaming
120–240 Hz can reduce visible motion steps and shorten the time between input and a displayed frame, provided the system can keep up.
Video and film
Most video is authored at 24, 30, or 60 FPS. A higher-refresh panel can still make navigation smoother without changing the source frame rate.
Mobile screens
Adaptive mobile panels may move between rates to balance smoothness and battery life. Test with auto-brightness and battery modes in mind.
If the number looks low.
The browser can only observe the path it receives. Check these four parts of the setup before blaming the panel.
System mode
Confirm the operating system is set to the panel's highest supported rate. A new display often starts at 60 Hz by default.
Cable and port
Use a cable and port that support the chosen resolution and rate. An older HDMI connection can silently limit a high-refresh display.
Hardware acceleration
Keep browser hardware acceleration enabled. If it is off, animation timing may be constrained and the result can look lower than expected.
Power profile
Laptop battery-saving modes may reduce refresh rate or graphics performance. Test again on the intended plugged-in performance mode.
Questions, answered.
A browser timing test is useful because it measures the active experience. It is also important to understand what the number cannot tell you.
Why does my 144 Hz display show about 60 Hz?
Check that the operating system mode is set to 144 Hz, then verify the cable and port can carry the selected resolution. Browser hardware acceleration and laptop power-saving settings can also hold the active rate down.
Is the browser measurement accurate?
It is a practical estimate of the animation frames the browser receives from the display. It is normally close to the active refresh rate, but background work, hidden tabs, power policies, and system load can make the result fluctuate.
What do the red frame-time bars mean?
They mark intervals over 20 ms, which are long enough to be visible as a missed or delayed frame in many interactions. Occasional spikes are normal; frequent spikes indicate an unstable path that deserves investigation.
Is a higher refresh rate better for your eyes?
Higher refresh can reduce visible flicker and make motion easier to follow, but it does not replace sensible brightness, viewing distance, breaks, or regular eye care.
Can I feel the difference between 60 Hz and 144 Hz?
Most people can see the difference during fast scrolling, window dragging, or games. Gains above 144 Hz are still measurable, but the visual step is usually smaller than the move from 60 to 144 Hz.
Should I use VRR or a fixed refresh rate?
VRR is helpful when frame output varies because it can reduce tearing and uneven pacing. A fixed rate is predictable when the system consistently reaches the display's maximum; the best choice depends on the workload.
Test the screen
you have.
Refresh rate is one part of a healthy display. Use the color tester to inspect pixels, uniformity, and panel behavior next.