Monitor Response Time & Input Lag Calculator

Calculate total input lag from refresh rate, pixel response time, network ping, and engine delay.

Refresh Rate

Response Time (GtG)

Network Ping

Engine/Render Delay

Tab to move between fields

Total Input Lag

37.47 ms

Frame Time6.94 ms

Display Lag3.47 ms

Responsiveness Rating4 / 5

Motion Blur57.6% of frame

Effective Refresh Rate144 Hz

How to Use This Calculator

Enter your Monitor's Refresh Rate in Hz and the Response Time (GtG) in milliseconds.
Enter Network Ping in ms and the Game Engine/Render Delay in ms.
Review Total Input Lag combining all latency sources from input to display.
Check Frame Time to ensure your refresh rate matches your actual rendered FPS.
Use Display Lag to compare monitors and justify refresh rate upgrades for competitive play.

How the result changes with Network Ping

Refresh Rate: Monitor refresh rate. Common: 60, 144, 165, 240, 360 Hz.
Response Time (GtG): Gray-to-gray pixel response time from monitor specs.
Network Ping: Round-trip network latency. Set to 0 for offline games.
Engine/Render Delay: Game engine processing delay. Typically 5-20ms depending on settings.

Identify Input Parameters
4 parameters
Refresh Rate = 144, Response Time (GtG) = 4, Network Ping = 20, Engine/Render Delay = 10 = 4 input(s) provided
Calculate Total Input Lag
Total Input Lag
37.47 = 37.47
Calculate Frame Time
Frame Time
6.94 = 6.94
Calculate Display Lag
Display Lag
3.47 = 3.47