Free, accurate stopwatch with nothing to install
This online stopwatch measures time in hours, minutes, seconds and hundredths of a second and works on phones and computers. Use the Lap button to record split times without interrupting the count, ideal for races, workouts, studying and tasks done in stages. The space bar starts and pauses it, so you do not need the mouse.
What to use a stopwatch for
- Workouts and sports: record the time of each lap or set.
- Studying: measure how long you take on each question or task.
- Work: track how much time an activity really takes.
- Cooking and experiments: time recipes and processes.
Need a countdown that ends by itself and sounds an alarm? Use the online timer. To add up hours worked, see the hours calculator.