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FPS to Milliseconds Calculator

Convert FPS to the theoretical frame duration in milliseconds, compare it with display refresh rate, and learn why an FPS counter is not the whole latency story.

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6.94 msTime per rendered frame
6.94 msMonitor refresh interval
1Frames per refresh interval
These are mathematical averages. A 144 Hz screen refreshes about every 6.94 ms; that alone does not guarantee a stable 144 FPS. This calculator does not measure frame pacing, GPU performance, end-to-end latency, V-Sync or display response time.

How to convert FPS to milliseconds

Frame time = 1000 / FPS, with FPS measured in frames per second. At 60 FPS the mean frame duration is about 16.67 ms, while 120 FPS corresponds to about 8.33 ms. This relationship is mathematical, not a gaming benchmark.

FPS is not the same as refresh rate

FPS describes the game rendering cadence. Refresh rate is how many times a display can refresh per second. A higher frame rate can still influence input responsiveness, even if the monitor cannot show a complete unique new frame on every refresh.

What about 1% lows and stutter?

Average FPS can hide inconsistent frame times. Measuring 1% lows, spikes or time-series frame delivery requires actual instrumented performance data; this page does not claim to measure your hardware.

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Reviewed 21 October 2026. Independent fan-created reference. Original mathematical calculations and operational guidance. No game data or hardware measurements are collected.