Refresh Rate and Frame Time Calculator
Calculate frame time in milliseconds from refresh rate (Hz) and vice versa.
About This Calculator
Calculate frame time in milliseconds from refresh rate (Hz) and vice versa. Use the calculator above for instant results.
Worked Examples
- 1000/144 = 6.94 ms per frame | Competitive gaming standard
Answer: 6.94 ms per frame
- 1000/240 = 4.17 ms per frame | Ultra-smooth
Answer: 4.17 ms
- 1000/16.67 = 60 Hz | Standard monitor
Answer: 60 Hz
Who Uses This Calculator?
Understand monitor refresh rate benefits.
Compare monitor specs.
Convert between Hz and frame time.
Frame budget calculations for game dev.
Common Mistakes to Avoid
❌ FPS vs Hz
FPS (frames per second) from GPU must match or exceed Hz (refresh rate) of monitor to benefit from high refresh rate. 144 FPS on 60 Hz monitor = same as 60 FPS.
❌ VSync and frame time
VSync locks FPS to monitor Hz. Uncapped FPS with high Hz monitor gives variable frame times. G-Sync/FreeSync syncs dynamically.
Frequently Asked Questions
What Hz do I need?
60 Hz: fine for casual use. 144 Hz: standard for gaming. 240 Hz+: competitive FPS gaming. 120 Hz: sweet spot for console gaming.
Does 144 Hz look better?
Yes — significantly smoother cursor movement and games. The jump from 60 to 144 Hz is more noticeable than 144 to 240.
Frame time vs FPS?
Frame time (ms) = 1000/FPS. Consistent frame times are as important as average FPS — stutters mean inconsistent frame times.