Refresh Rate and Frame Time Calculator
Enter the screen's refresh rate and the frame rate your games reach to see the frame times and how many frames actually reach the screen.
How it works
Frame time in milliseconds is 1,000 divided by the rate. A 60 Hz screen shows a new image every 16.7 ms and a 120 Hz screen every 8.3 ms.
A screen cannot show more frames than its refresh rate. If the game runs faster, the extra frames are not displayed; if it runs slower, some refreshes repeat the previous frame.
Questions and answers
Is 120 Hz worth it on a laptop?
For scrolling and games, most people notice the smoother motion. It uses a little more battery than 60 Hz.
Do I need 240 Hz?
Only for fast competitive games, and only if the graphics chip can reach frame rates that high.
What is variable refresh rate?
The screen changes its refresh rate to match the frame rate, which removes tearing and stutter when the game runs below the maximum.