InputTestHub

Refresh Rate Test

Measures your display's real refresh rate from actual frame timings, and reports how consistent the frame pacing is.

Screen Tests Nothing uploaded No sign-up Free, unlimited
Screen Tests tool
The test starts automatically — follow the prompts above.
In short Refresh rate is how many times a second the display redraws, and this measures the real rate from actual frame timings rather than reading a setting. If your 144 Hz monitor reports 60, that is almost always a setting rather than a fault: Windows and macOS both default to 60 Hz on a new connection and do not tell you. Check Display Settings on Windows or the Displays panel on macOS and select the higher rate. If the higher rate is not offered at all, the cable or the port is the limit — HDMI and DisplayPort versions differ in the bandwidth they carry, and a high-resolution high-refresh signal needs more than an old cable provides. A reading that keeps changing is usually normal rather than broken: variable refresh displays genuinely change rate to match the content, and phones drop to 60 Hz on battery saver. Two measurement notes: browsers throttle background tabs heavily, so keep this tab in front, and the consistency figure matters as much as the rate, because uneven frame pacing feels worse than a lower steady rate.

How to use the Refresh Rate Test

  1. The test starts on its own — no button to press and nothing to install.
  2. Follow the prompt in the test panel and watch the readings update live.
  3. Press Reset to start over with a clean slate.

About the Refresh Rate Test

The Refresh Rate Test measures your display's real refresh rate from actual frame timings, and reports how consistent the frame pacing is. It runs as plain JavaScript inside the page, which means there is no upload step, no queue and no size limit imposed by a server — the only limit is your own device.

What people use it for

  • Confirming a 144 Hz monitor is actually running at 144 Hz and not 60.
  • Checking whether a phone has dropped to 60 Hz to save battery.
  • Verifying a cable or port supports the rate you paid for.

Details

Standard monitor60 Hz
Common gaming rates120, 144, 165, 240 Hz
Recent phones90 or 120 Hz, often variable

Where this tool stops

This measures what the browser is allowed to render, which is capped by the browser's own frame scheduling. It reliably distinguishes 60 from 120 or 144; it is less reliable above about 240 Hz.

Explained in our guides

All guides

Frequently asked questions

My 144 Hz monitor reads 60 Hz.
Almost always a setting rather than a fault. Check Display Settings on Windows or the Displays panel on macOS and select the higher rate — many systems default to 60 Hz. If the higher rate is not offered, the cable or port is the limit: HDMI 1.4 cannot carry 1440p at 144 Hz, and DisplayPort usually can.
The number keeps changing.
Variable refresh rate displays genuinely change rate to match the content, and phones drop to 60 Hz on battery saver. Both are normal.
Why does it read low in a background tab?
Browsers throttle background tabs heavily. Keep this tab in front while measuring.
Is the Refresh Rate Test free?
It is free, with no account, no trial and no daily cap. Every screen tests tool on inputtesthub.com works the same way: open the page and use it.
Is my data uploaded anywhere?
No. The Refresh Rate Test runs entirely in your browser using JavaScript. Because the work happens locally, the page also keeps working if your connection drops, and closing the tab is all it takes to discard everything.
What is the Refresh Rate Test used for?
The most common reasons people reach for it: confirming a 144 Hz monitor is actually running at 144 Hz and not 60. Checking whether a phone has dropped to 60 Hz to save battery. Verifying a cable or port supports the rate you paid for. It is built for exactly those cases rather than being a general-purpose tool with this bolted on.
When is the Refresh Rate Test not the right tool?
This measures what the browser is allowed to render, which is capped by the browser's own frame scheduling. It reliably distinguishes 60 from 120 or 144; it is less reliable above about 240 Hz. Knowing where a tool stops being trustworthy matters more than the cases where it works.
Which values should I know?
Standard monitor is 60 Hz. Common gaming rates is 120, 144, 165, 240 Hz. Recent phones is 90 or 120 Hz, often variable. These are printed on the page itself, so you do not have to take them on trust.
Does the Refresh Rate Test need an app or a driver?
No installation, no extension and no driver. The Refresh Rate Test uses the browser's own device APIs and begins as soon as the page loads, so there is nothing to press first. Press Reset at any point to start over with a clean slate.

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