Free Online Stopwatch

Use our free online stopwatch to measure elapsed time with precision down to the millisecond. Simply click the Start button to begin timing and use the stopwatch to accurately track seconds, minutes, and hours.

Our online stopwatch timer also includes a convenient Lap function, allowing you to record individual lap times while the stopwatch continues running. This makes it useful for timing workouts, races, sports activities, experiments, study sessions, work tasks, cooking, and any activity where accurate elapsed time matters.

Stopwatch with Lap Timer

Click Start to begin the stopwatch and Stop to pause it. While the stopwatch is running, click Lap to record the current stopwatch time and add it to your lap list.

You can record as many laps as needed and compare individual lap times while keeping the main stopwatch running.

When the stopwatch is stopped, click Reset to clear the stopwatch time and remove all recorded laps, allowing you to start a new timing session from zero.

Millisecond Precision Display

The online stopwatch displays fractions of a second with millisecond accuracy. The primary readout displays hours, minutes, and seconds, while millisecond splits are presented on a dedicated line for maximum visual clarity.

Automatically Save Stopwatch Times and Laps

If you accidentally close or refresh the online stopwatch, your current stopwatch time value and recorded lap times are automatically saved. When you return to the stopwatch, your timing session can be resumed right where you left off.

Customize Your Online Stopwatch

Personalize the appearance of your online stopwatch timer to suit your preferences. You can change the LED digit text color and adjust the display text size using the top navigation controls. Your display preferences are saved automatically in your browser.

Use Our Online Stopwatch for Any Activity

Whether you need a free stopwatch online, a millisecond stopwatch, a lap timer, or a simple online stopwatch timer, this tool provides an easy way to measure and record elapsed time directly in your web browser.

Use the online stopwatch for running, exercise, sports, workouts, swimming, studying, cooking, work, experiments, competitions, presentations, and everyday timing tasks — with precise time tracking and convenient lap recording.