Refresh Rate Test: Free Online Check Your Monitor Hz
Check your monitor refresh rate free in your browser. Find out instantly if your display runs at 60Hz, 120Hz, 144Hz, 240Hz, or higher, with a live gauge, a real time chart, a motion clarity demo, and an automatic result analysis.
Run the test to get an instant reading of your monitor refresh rate along with a plain language explanation of what your numbers mean.
Keep this tab active and in focus while testing. Switching tabs or minimizing the window will pause the browser frame loop.
How to test your monitor refresh rate
Click Start Test
Press the Start Test button above to begin the frame timing loop. No clicking or movement is required after that.
Keep the tab in focus
Stay on this tab while the test runs. Watch the moving box for a visual check of motion smoothness at your refresh rate.
Read the gauge
The live gauge, chart, average Hz, max Hz, stability score, and instant analysis update every second as the loop runs.
Compare to your spec
Check the reading against your monitor advertised refresh rate. A large gap usually points to an operating system or cable setting.
What is monitor refresh rate
Refresh rate is how many times per second your monitor redraws the image on screen, measured in Hertz (Hz). A 60Hz display redraws 60 times every second, a new frame roughly every 16.7 milliseconds. A 144Hz display redraws every 6.9 milliseconds. This tool is often searched as refresh rate checker, monitor Hz tester, screen Hz test, or display refresh rate test.
Refresh rate vs frame rate
Refresh rate is a fixed property of your monitor hardware. Frame rate, or FPS, is how many frames your GPU actually renders per second, which can be lower than your monitor maximum depending on the content.
Why it matters for gaming
A 144Hz display shows a new frame every 6.9 milliseconds versus 16.7 milliseconds at 60Hz, which means faster on screen feedback and noticeably smoother motion during fast paced games.
Stability over raw speed
A steady 144Hz reading beats a jumpy 240Hz reading full of drops. This tool grades stability alongside your raw Hz reading so you can trust what you see.
Common refresh rates and frame time
Office work, browsing, and everyday video
A mild step up for smoother scrolling
The popular standard for PC gaming
A common factory overclock above 144Hz
Competitive esports and fast paced shooters
Professional level play, the fastest widely sold panels
Why your reading might look wrong
Operating system setting
Windows and macOS sometimes default a high refresh monitor back to 60Hz. Open your display settings and manually select the highest listed refresh rate.
Cable and port limits
Older HDMI or DisplayPort cables and ports can cap your refresh rate. Confirm your cable supports your monitor rated Hz at your chosen resolution.
Battery saving mode
Laptops on battery power often throttle the display to 30Hz or 60Hz automatically. Plug in your laptop before testing for an accurate high refresh reading.
Mirrored displays
When two screens are mirrored, both are forced to the lowest shared refresh rate. Switch to extended display mode so each monitor runs at its own maximum.
What uses refresh rate: monitors, TVs, and mobile screens
Refresh rate applies to any screen that redraws an image on a schedule, not only PC monitors.
Gaming monitors
The most commonly tested display, since smooth fast paced motion depends heavily on a high and stable refresh rate.
TVs and laptops
Modern TVs and laptop panels increasingly ship with 90Hz, 120Hz, or higher screens for smoother everyday scrolling and video.
Controllers and input devices
Your monitor refresh rate pairs with your input device speed for the full picture. Check your gear with our Gamepad Tester, Input Latency Test, or Polling Rate Test.
Frequently asked questions
What is a good monitor refresh rate?
For everyday tasks, 60Hz is enough. For gaming, 120Hz or 144Hz is a clear upgrade in smoothness. Competitive players often prefer 240Hz or 360Hz for the fastest possible motion.
How do I check my monitor Hz?
Use this refresh rate test tool. Click Start Test and keep the tab active for a few seconds, then read your average, max, and stability score against your monitor spec.
Why does my refresh rate show 60Hz on a 144Hz monitor?
This usually means your operating system display setting has not been switched to the higher rate, or your cable and port do not support the full bandwidth. Check your Windows or macOS display settings first.
Is this refresh rate tester accurate?
This tool measures how often your browser can paint a new frame using the requestAnimationFrame API, which closely tracks your actual display refresh rate under normal conditions. Heavy background load or battery saving modes can affect the reading.
What is the difference between refresh rate and frame rate?
Refresh rate is how many times your monitor can redraw the screen, a fixed hardware limit. Frame rate is how many frames your GPU actually produces, which depends on the content and hardware and can be lower than your monitor maximum.
Does refresh rate affect FPS in games?
Your monitor refresh rate sets an upper limit on how many frames you can see smoothly. If your GPU renders more frames than your monitor can show, the extra frames are typically discarded or cause tearing without adaptive sync.
Is 144Hz worth it over 60Hz?
Yes for most people. The jump from 60Hz to 144Hz is the most noticeable upgrade in perceived smoothness, more so than later jumps like 144Hz to 240Hz.
Why does my laptop refresh rate drop on battery?
Many laptops automatically throttle the display to 30Hz or 60Hz on battery power to save energy. Plug in your laptop and disable battery saving mode before testing or gaming.
Can I test my TV or phone refresh rate here?
This tool works in any modern mobile or desktop browser, so you can run it on a phone, tablet, or a TV with a browser app, though results depend on that device browser and operating system settings.
Do I need to install software to test my refresh rate?
No. This refresh rate test runs entirely in your browser. There is nothing to download and no account is required.