The Refresh Rate Test is one of the most important tests for monitor display. The refresh rate checker of a display is the number of frames it can show every second. Most of the easiest tests to run, and the most accurate. Monitor Refresh Rate Test will automatically sync your browser and check the refresh rate of your monitor in hertz. Online refresh rate test showing 8 decimal number results. This Refresh rate test tool is free of cost, and you can use it as many times as you wish.