Refresh Rate Checker
Measures the refresh rate your display is really running at, counts dropped frames, and shows side-by-side motion at full, half, and quarter rate so you can see what the numbers mean.
Measured refresh rate
—Hz
Measuring — keep this tab visible…
Smoothness comparison
All three dots move at the same speed. The top row updates every frame your display shows; the others update at half and a quarter of that — the difference you see is what a higher refresh rate buys you.
About this tool
How the refresh rate is measured
Your browser repaints the page in step with the display, so the tool times a couple of hundred animation frames and takes the median gap between them. The median filters out one-off stalls, and the result snaps to the nearest real display rate — 59.94 Hz panels correctly read as 60 Hz.
If the number looks lower than your monitor's specification, check that the tab is in the foreground, battery saver is off (many laptops and phones drop to 60 Hz to save power), the OS display settings actually select the higher rate, and no other tab is hogging the machine. The dropped-frames counter tells you whether the browser is keeping up.
Reading the smoothness comparison
The three dots travel at identical speed, but the lower rows only update their position at half and a quarter of your display's rate — exactly what the same animation would look like on a slower screen. The bigger the visible difference between the top and bottom rows, the more your high refresh rate is doing for you.
On a 60 Hz display the rows imitate 60/30/15 fps; on a 120 Hz display they imitate 120/60/30 fps. Gamers comparing 60 Hz against 120/144 Hz screens: the top-versus-middle row is the upgrade you would see.
Reference tables & standards
Common display refresh rates
Source: Display industry standards
| Rate | Where you find it |
|---|---|
| 60 Hz | Standard monitors, TVs, budget phones and laptops |
| 90 Hz | Mid-range phones and tablets |
| 120 Hz | Flagship phones, gaming laptops, modern TVs |
| 144–165 Hz | Mainstream gaming monitors |
| 240 Hz and above | Competitive gaming monitors |
Displays with variable refresh rate (G-Sync / FreeSync) report the rate the browser is currently driving.
The measurement reflects what the browser actually delivers, which the operating system may cap below the panel's maximum (power saving, video playback, external-monitor limits).