Online Stopwatch
A free online stopwatch with giant projector-ready digits — count up for races, fluency drills, experiments and classroom challenges. No download, works offline.
Count up, out loud, for everyone to see
A stopwatch on the big screen changes the energy of a room: clean-up becomes a race, fluency reads get a personal-best to beat, and “how long does it really take?” becomes an experiment. This one counts up from 00:00 with digits sized for the back row and a chime you can mute.
Counting down instead? The classroom timer has presets from 1 to 120 minutes, or grab a fixed length like the 5-minute timer. For a race between teams, pair it with the scoreboard.
FAQ
How accurate is the stopwatch?
It counts from a real timestamp, not from screen ticks, so it stays accurate even if the tab is throttled in the background — like all our timers.
What do people use a stopwatch for?
Cleaning-up races, fluency timings, PE circuits, how-long-does-it-take experiments, speech practice and speed drills — anywhere you need to count up, not down.
Can I see it from the back of the room?
Yes — the digits are sized for projectors and smartboards, and Fullscreen mode hides everything else. One tap when you're done stops the clock.
Is there a countdown timer too?
Yes — switch to Countdown mode for the full classroom timer with presets from 1 to 120 minutes, or open any dedicated length like the 5-minute timer.