This translates rates into intervals. It does not predict your PC’s FPS or measure input latency.
Method and limits
Formula: 1,000 ÷ FPS = milliseconds per frame. The same reciprocal calculation gives the refresh interval from Hz. A 60 FPS rate corresponds to 16.67 ms per frame; 120 FPS corresponds to 8.33 ms.
An average FPS value is not evidence that every frame took that interval. A frame-time trace is needed to describe spikes and consistency. Generated frames, rendering cadence and input sampling also should not be collapsed into one latency number.
Use the interval to understand a performance target or compare units in a review. It does not establish a frame cap, synchronization configuration or hardware purchase recommendation. The site’s separate PC FPS model remains unvalidated.