60 FPS = 16.67 ms
Doubling FPS halves frame time: 120 FPS is ~8.33 ms, 240 FPS is ~4.17 ms.
Timing math
FPS to Hertz Calculator
Inputs
Results
Hertz:
Frame time:
How to use this FPS to Hertz calculator
- Enter your game/renderer FPS. We show its Hertz and frame time in milliseconds.
- Add your monitor refresh rate. Quickly see if you’re over, under, or matched.
- Watch the guidance lines. They suggest capping FPS, enabling VRR, or lowering settings.
- Use it during tuning. Helpful when balancing fidelity vs. smoothness across displays.
- Keep it offline. Everything runs locally once loaded.
5 Fun Facts about FPS & Refresh
VRR follows your FPS
G-Sync/FreeSync/VRR displays adjust refresh on the fly to reduce tearing when FPS bounces.
Dynamic refresh
Stability beats peaks
Consistent frame pacing often looks smoother than higher-but-spiky FPS numbers.
Pacing matters
Odd pulldown causes judder
24 FPS on 60 Hz repeats frames unevenly (3:2). 120 Hz cleanly fits 24 FPS at 5:5.
Cadence
Tearing is a mismatch
When FPS outruns refresh without sync, frames arrive mid-scan creating visible seams.
Sync or cap
About this FPS to Hertz calculator
This calculator gives a quick reality check on frame times and how they relate to monitor refresh rates. Enter an FPS value and your display’s refresh to see the frame duration in milliseconds and whether you’re over, under, or matched. That’s useful for gamers tuning graphics settings, motion designers checking playback smoothness, and developers verifying timing budgets.
All calculations are client-side—no performance data is uploaded. The guidance text offers suggestions on whether to cap FPS, raise refresh, or lower quality settings depending on your ratio. When FPS exceeds refresh, you may see tearing without vsync or VRR; when FPS is below refresh, repeated frames can create judder. Matching or using variable refresh helps stabilize the experience.
Because the tool is lightweight, it works offline once loaded. Keep it alongside your system monitoring to understand what a 12 ms frame time means (about 83 FPS) or how close you are to fully using a 240 Hz display. It’s also handy for planning rendered exports for signage or installations where playback hardware has a fixed refresh rate.
Use it whenever you tweak settings, move between displays, or explain performance trade-offs to teammates or clients. Knowing the numbers makes it easier to balance fidelity and smoothness without guesswork.