Refresh Rate Test: Check Your Monitor’s Actual Hz & FPS.

Welcome to our free refresh rate test! This tool measures your display’s actual refresh rate (Hz), live FPS (frames per second), and frame timing stability, all directly in your browser. No downloads, no signups, just instant results.

Ready to Test

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0.0s / 5.0s

Refresh Rate

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🖥️

Live FPS

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FPS

Frame Jitter

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Average FPS

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Min FPS

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Max FPS

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Total Frames

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Consistency

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Rating

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Frame Time Distribution (lower = smoother)

Notice:

Browser: Detecting… Platform: Detecting… Screen: Detecting…

Tips for Accurate Results

Close other tabs and applications
Disable power-saving mode
Use Fullscreen Mode for best results
Keep this tab active and visible
Try different browsers to compare

Refresh Rate Visual Comparison

See how different FPS levels affect motion smoothness

Understanding Your Refresh Rate Results

Once the Refresh rate test is complete, you’ll see several important metrics. Here’s what each one tells you:

Refresh Rate Test - Measure Your Monitor Hz in Seconds (Free Online Tool)

Estimated Refresh Rate (Hz)

This is your monitor’s actual refresh rate, the number of times your screen updates the image every second.

60 Hz – Your screen updates 60 times per second (standard displays).

144 Hz – Screen updates 144 times per second (gaming monitors).

240 Hz – Screen updates 240 times per second (high-end esports displays).

However, if your 144Hz monitor is displaying only 60Hz or 120Hz, something’s wrong. Scroll down to the troubleshooting section to resolve the issue.

Live FPS (Frames Per Second)

This shows how many frames your browser is rendering during the test. Ideally, this should closely match your refresh rate. For Example:

On a 144Hz monitor, you should see around 140-144 FPS

On a 60Hz monitor, you should see around 59-60 FPS

If your FPS is much lower than your refresh rate, try these quick fixes:

Switch to full-screen mode
Test the tool in another browser (Firefox usually gives the most accurate results)
Close background applications
Turn on hardware acceleration in your browser settings

Jitter (Frame Stability)

Jitter measures how consistent your frame timing is. It’s shown in milliseconds (ms), and lower is always better.

Under 1 ms = Excellent stability (smooth as butter).

1-3 ms = Good stability (acceptable for most uses).

5+ ms = Poor stability (you’ll notice stuttering).

Frame Interval Graph

Some tests display a visual graph showing frame timing consistency. A flat, steady line means rock-solid performance. Lots of spikes and valleys indicate dropped frames or timing issues.

Flat steady line: Rock solid performance.

Spikes and valleys: Dropped frames or timing issues.

What Is Refresh Rate Tester? (Quick Explanation)

Your monitor's refresh rate (measured in Hz) is how many times per second it can display a new image. It's like a flipbook: the faster you flip the pages each second, the smoother the motion feels.

Common Refresh Rates

60HZ

Standard for everyday monitors, laptops, and TVs

Basic

120Hz

Found on smartphones and mid-range gaming displays

Good

144Hz

The gaming sweet spot (huge upgrade from 60Hz)

Best value

240Hz

The gaming sweet spot (huge upgrade from 60Hz)

Pro Gaming

360HZ

The gaming sweet spot (huge upgrade from 60Hz)

Elite

Higher refresh rates make motion feel smoother, especially in fast-moving games, but they also require higher FPS from your system to be effective.

💡 Important: To take full advantage of a higher refresh rate monitor, your system needs to output enough frames per second (FPS). For example, a 144Hz monitor needs at least 144 FPS to show its full smoothness potential.

Refresh Rate vs Frame Rate: What's the Difference?

This confuses a lot of people, so let's clear it up:

Refresh Rate (Hz) – How fast your monitor can display images.

Frame Rate (FPS) – How fast your computer's GPU renders images.

Your GPU creates the frames, and your monitor displays them. For the smoothest experience, both should match.

Example: Your GPU renders Valorant at 200 FPS, but your monitor only refreshes at 60Hz. What happens? You only see 60 of those 200 frames; the other 140 are wasted. Your eyes never see them.

That's why gamers pair powerful GPUs with high refresh rate monitors. When your GPU outputs 144 FPS and your monitor runs at 144Hz, everything syncs perfectly for buttery-smooth gameplay.

Why Should You Test Your Refresh Rate?

You might be thinking, “My monitor box says 144Hz, so obviously it’s running at 144Hz, right?” Not always! Here’s why testing matters:

Monitor Refresh Rate Issues

Default settings often cap at 60Hz

Windows and other operating systems don't always automatically select your monitor's maximum refresh rate. Tons of people buy expensive 144Hz gaming monitors and unknowingly run them at 60Hz for months.

Your cable might be the bottleneck

Not all cables support high refresh rates. That old HDMI cable from 2015? It might max out at 60Hz or 120Hz, even if your monitor supports 240Hz.

Laptop power settings throttle refresh rates

Many laptops automatically drop to 60Hz when running on battery to save power. Plug into AC power, and suddenly you're back at 144Hz.

Browser limitations affect results

Some browsers throttle animation performance to save CPU resources. You might see lower numbers simply because Chrome or Safari is limiting itself, not because your monitor is slow.

Something might actually be broken

Faulty cables, outdated GPU drivers, or incorrect display settings can all prevent your monitor from reaching its advertised speed. Testing helps you catch these issues early.

Bottom line: Don’t just trust the marketing claims. Test it yourself and know exactly what you’re getting.

Common Problems & How to Fix Them

Ran the test, and your results look weird? Don’t worry, most issues have simple fixes. Here are the most common problems:

Problem #1: My 144Hz Monitor Only Shows 60Hz

This is the most common issue, and usually an easy fix.

Step1: Check Your Cable

Cable Type	Max @ 1080p	Max @ 1440p	Max @ 4K
HDMI 1.4	120Hz	75Hz	30Hz
HDMI 2.0	240Hz	144Hz	60Hz
HDMI 2.1	360Hz+	240Hz	120Hz
DisplayPort 1.2	240Hz	165Hz	75Hz
DisplayPort 1.4	360Hz+	240Hz	120Hz

If you’re using HDMI 1.4, you’re limited to 120Hz at 1080p. Upgrade to HDMI 2.0 or higher, or better yet, use DisplayPort for PC gaming.

Step 2: Change Windows Display Settings

Right-click desktop → Display Settings

Scroll → Advanced Display

Choose the highest Refresh Rate

Click “Keep Changes”

If 144Hz doesn’t appear, cable or GPU drivers are likely the issue.

Step 3: Update GPU Drivers

Outdated drivers can prevent higher refresh rates from showing up:

NVIDIA GPUs: Download GeForce Experience → Check for driver updates

AMD GPUs: Download AMD Adrenalin Software → Check for updates

After updating, restart your computer and check the display settings again.

Problem #2: Browser Test Shows Lower FPS Than Expected

Your monitor is set to 144Hz in Windows, but our test only shows 60-80 FPS? Here’s why:

Solution 1: Use Fullscreen Mode

Browsers often throttle animations in regular windows to save resources. Click the full-screen button during the test for accurate results.

Solution 2: Try a Different Browser

Not all browsers handle animation timing equally:

Firefox – Usually gives the most accurate refresh rate results
Chrome – Good, but can throttle on laptops
Microsoft Edge – Similar to Chrome (same engine)
Safari (Mac) – Can be inconsistent; try Firefox instead

Problem #3: Screen Tearing and Stuttering During Games

Screen tearing is that annoying horizontal line that appears during fast motion, making the image look split. Stuttering moves feel jerky instead of smooth. Both happen when your GPU’s frame output doesn’t sync with your monitor’s refresh rate.

The Fix: Enable G-Sync or FreeSync
These technologies (called Variable Refresh Rate or VRR) make your monitor dynamically match your GPU’s frame rate, eliminating tearing and stuttering.

To Enable G-Sync (NVIDIA GPUs):

Browsers often throttle animations in regular windows to save resources. Click the full-screen button during the test for accurate results.

Right-click your desktop
Open NVIDIA Control Panel
Go to “Set up G-Sync”
Check “Enable G-Sync”
Select your monitor from the list
Click Apply

To Enable FreeSync (AMD GPUs):

Right-click your desktop
Open AMD Adrenalin Software
Navigate to Display settings
Toggle “AMD FreeSync” to ON
You may also need to enable FreeSync on your monitor using its physical buttons (OSD menu)

Note: Many FreeSync monitors are now “G-Sync Compatible,” meaning NVIDIA GPUs can use them too.

Once enabled, G-Sync or FreeSync will eliminate screen tearing and make gameplay incredibly smooth, even when your FPS fluctuates.

FAQ

That’s completely normal. Monitors have a tolerance of about ±0.5 Hz. This tiny variance does not affect performance at all, you're getting the full 144Hz experience.

Yes. Modern mobile browsers support the animation timing technologies used in this test. If you have an iPhone with ProMotion or an Android device with a 90Hz or 120Hz display, you can test it directly from your browser.

Not much. Most movies are 24 FPS, TV shows are 30 FPS, and most YouTube content maxes out at 60 FPS. Higher refresh rates mainly benefit gaming and interactive tasks.

Higher refresh rates are excellent for competitive gaming and ultra-smooth interaction. For everyday use and visual quality, a balanced range like 60–144Hz is more than sufficient.

Right-click desktop → Display Settings → Advanced Display → Choose refresh rate dropdown → Select desired Hz → Apply.

60Hz for general use, 144Hz for gaming and 240Hz+ for competitive esports.

144Hz is ideal for most gamers. 240Hz+ is recommended for competitive or esports titles.

Slightly, yes. The display consumes a bit more power at higher refresh rates. However, the main battery drain comes from the GPU producing more frames and the CPU working harder. Most gaming laptops allow you to switch refresh rates, use 60Hz for browsing and increase to 144Hz+ while gaming on AC power.