How do I convert Hz to milliseconds?

Divide 1000 by the refresh rate in Hz. For example, 60Hz is 1000 / 60 = 16.67ms per frame, and 144Hz is 1000 / 144 = 6.94ms per frame.

How do I convert milliseconds back to Hz?

Divide 1000 by the frame time in ms. A frame time of 8.33ms corresponds to 1000 / 8.33 = 120Hz.

Why does a higher Hz mean a lower frame time?

Refresh rate counts how many frames are drawn per second, while frame time is the duration of a single frame. They are inverses, so more frames per second means each one is shown for less time.

Is frame time the same as input lag?

No. Frame time is only the display refresh interval. Total input lag also includes rendering time, GPU processing, and any panel response delay, so real-world latency is usually higher than the raw frame time.

What refresh rate is best for competitive gaming?

Higher refresh rates (144Hz, 240Hz, or 360Hz) reduce the time between frames and can make fast motion look smoother and more responsive, but the GPU also needs to render frames fast enough to take advantage of it.

Refresh Rate Frame Time Calculator

Enter a refresh rate in Hz or a frame time in ms and get the other value instantly, plus a table of common rates.

Refresh Rate / Frame Time

Refresh rate (Hz)

Result

16.67 ms

at 60 Hz

Common Refresh Rates

Click a row to load that refresh rate into the calculator.

Refresh rate	Frame time	Typical use

Summary

This calculator converts between display refresh rate (Hz) and the time each frame is shown on screen (ms). A higher refresh rate means less time per frame, which is why 240Hz monitors feel noticeably smoother than 60Hz for fast-paced games. Use it to sanity-check monitor specs, compare upgrade options, or understand frame pacing when tuning game settings.

How it works

Pick a direction: Hz to ms, or ms to Hz.
Type the refresh rate (Hz) or frame time (ms) into the input.
The result updates live as you type, rounded to useful precision.
Check the reference table for common gaming and cinema refresh rates.
Click any row in the table to load that value into the calculator.

Use cases

Compare how much faster 144Hz is than 60Hz in per-frame terms.
Estimate input latency contribution from a monitor's refresh rate.
Convert a target frame time budget (e.g. 6.94ms) back to a Hz spec.
Check whether a game's frame time graph matches the monitor's native rate.
Explain to a friend why 240Hz monitors show frames roughly every 4ms.
Verify capture/recording frame timing against a target refresh rate.

Frequently Asked Questions

Last updated: 2026-09-09 · Reviewed by Nham Vu