MS to FPS Calculator: Frame Time Converter & 144Hz vs 240Hz Comparison (2026)
An MS to FPS calculator turns one division into an instant answer. MS to FPS conversion: frames per second equals 1000 divided by the frame time in milliseconds. So 16.67 ms is 60 FPS, 6.94 ms is 144 FPS and 4.17 ms is 240 FPS. This MS to FPS calculator converts both ways and compares any two refresh rates.
The comparison box answers the question gamers ask before buying a faster monitor: how many milliseconds do I actually gain? Enter your current and target Hz and it shows the frame time for each and the saving per frame.
MS to FPS Calculator: The Formula
The MS to FPS formula is FPS = 1000 รท ms, and the reverse is ms = 1000 รท FPS. A monitor that refreshes 144 times per second shows a new frame every 6.94 milliseconds, while a 240 Hz monitor does it every 4.17 milliseconds. The calculator does this maths for any number you type.
- FPS or Hz to ms: choose the first option and enter the rate.
- ms to FPS or Hz: choose the second option and enter the frame time.
- Compare monitors: enter your current and target Hz in the lower box.
Frame Time Calculator Chart: Hz to Milliseconds
This chart lists common refresh rates with their frame times, so you can read off a conversion without typing anything.
| Refresh rate or FPS | Frame time |
|---|---|
| 30 | 33.33 ms |
| 60 | 16.67 ms |
| 75 | 13.33 ms |
| 90 | 11.11 ms |
| 120 | 8.33 ms |
| 144 | 6.94 ms |
| 165 | 6.06 ms |
| 240 | 4.17 ms |
| 360 | 2.78 ms |
| 480 | 2.08 ms |
| 540 | 1.85 ms |
16.67 ms to FPS Explained
The number 16.67 ms comes up constantly because it is the frame time of a 60 Hz display. Divide 1000 by 16.67 and you get 60 FPS. Games that run at a locked 60 FPS need every frame finished in under 16.67 ms. If a frame takes 20 ms, that single frame drops the instantaneous rate to 50 FPS and you see a stutter.
How Many ms Is 240Hz vs 144Hz?
A 144 Hz monitor takes 6.94 ms per frame and a 240 Hz monitor takes 4.17 ms per frame. The difference is 2.78 ms. That is a smaller gain than going from 60 Hz to 144 Hz, which saves 9.72 ms per frame. The table shows common upgrades.
| Upgrade | Frame time before | Frame time after | Saved per frame |
|---|---|---|---|
| 60 to 144 Hz | 16.67 ms | 6.94 ms | 9.72 ms |
| 144 to 240 Hz | 6.94 ms | 4.17 ms | 2.78 ms |
| 144 to 360 Hz | 6.94 ms | 2.78 ms | 4.17 ms |
| 240 to 360 Hz | 4.17 ms | 2.78 ms | 1.39 ms |
| 240 to 480 Hz | 4.17 ms | 2.08 ms | 2.08 ms |
| 360 to 540 Hz | 2.78 ms | 1.85 ms | 0.93 ms |
Is a Faster Monitor Worth It? Diminishing Returns
Each step up in refresh rate saves less time than the one before. Going from 60 to 144 Hz is a big jump, 144 to 240 Hz is noticeable for competitive players, and 360 to 540 Hz saves under 1 ms per frame. Your graphics card also has to reach that frame rate, otherwise the monitor shows the same frame more than once. Resolution matters as much as refresh rate, so compare 1080p vs 1440pbefore upgrading.
Frame Time vs Input Lag
Frame time tells you how often the screen can show something new. Input lag is the full delay from pressing a button to seeing the result, which also includes your mouse, the game engine and the monitor processing. A faster refresh rate trims the display part, but it does not fix a slow mouse or heavy post-processing. Weighing an upgrade? See 5 reasons a premium monitor is worth it.
MS to FPS Calculator: Where to Learn More
Frame pacing and refresh rate are covered in depth by display reviewers such as RTINGS monitor tests. Pair this tool with our DisplayPort HDMI bandwidth calculator to check that your cable can actually carry the refresh rate you want.
Tips for Smoother Frame Times
- Cap your frame rate just below the refresh rate to avoid tearing and spikes.
- Enable variable refresh rate (G-Sync or FreeSync) when your monitor supports it.
- Close background apps that cause stutter during games.
- Check the cable and port with a bandwidth calculator before blaming the monitor.
- On phones, high frame rates need the right settings, as in PUBG Mobile 90 FPS settings.
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Why Use an MS to FPS Calculator
An MS to FPS calculator turns confusing numbers into something you can compare. Frame time in milliseconds lets you see exactly how much a refresh rate upgrade changes, which is more useful than a bigger Hz number on a box. Valve’s new $1,059 Steam Frame headset leans on frame generation to hit its targets โ the company is discontinuing the Index VR to make room for it.
Frequently Asked Questions
How do you convert ms to FPS?
Divide 1000 by the frame time in milliseconds. A frame time of 10 ms is 1000 รท 10 = 100 FPS.
What is 16.67 ms in FPS?
16.67 ms equals 60 FPS. It is the frame time of a 60 Hz display.
How many ms is 240Hz vs 144Hz?
240 Hz is 4.17 ms per frame and 144 Hz is 6.94 ms per frame, a saving of 2.78 ms per frame.
Is a higher refresh rate always worth it?
Gains shrink as Hz rises. 60 to 144 Hz saves 9.72 ms per frame, but 240 to 360 Hz saves only 1.39 ms.
Is frame time the same as input lag?
No. Frame time is how often a new frame appears. Input lag also includes the mouse, game engine, GPU and display processing.
What is a good frame time for smooth gaming?
Steady frame times matter more than the average. Spikes above the average cause stutter even when the FPS counter looks high.
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Axee Davies is the founder of AxeeTech, publishing gaming guides, codes, and Windows how-tos since March 2013. A tech enthusiast for 13+ years โ starting with smartphones and Android rooting โ he now runs a site that puts out a new guide every day for Roblox players, traders, and Windows users. More about AxeeTech
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