radialtimers.com
One minute of brushing, drawn as 20 rings that give one up every 3 seconds. Prop the phone against the mirror, start it as the brush goes in, and the dial does the counting; nobody has to watch a clock with a mouth full of foam.
Most people brush for far less time than they think, and without a clock the estimate is generous. One minute with a visible end is a starting target that beats thirty rushed seconds: enough to reach every surface once, with a ring leaving every 3 seconds so the progress is obvious in the mirror. This page is silent while it runs and chimes once at the end, which is the signal to rinse.
Prop the phone against the mirror or the splashback and fullscreen the dial so the rings are big enough to count with foam in the way.
A timer turns "brush properly" into something a child can see. The rings are the game: the brush moves to the next corner each time five are gone, and the chime, not the parent, decides when brushing is over. For the very young, start with a 30 second timer while an adult finishes the job, then move to this page. Once a minute is routine, the 2 minute timer is the target dentists usually give, and the same four corners get 30 seconds each instead of 15.
| Week | Timer | Per corner |
|---|---|---|
| 1 to 2 | this page, 1 minute | 15 seconds |
| 3 | 90 seconds | 22 seconds |
| 4 onward | 2 minutes | 30 seconds |
Siblings brushing at the same sink can each have a timer: open two on the page, start each as its brush goes in, and each chimes on its own. A shared bathroom with an electric brush that buzzes at 30 seconds already has a clock; this page is for the manual brush, the travel bag, and the kid who ignores the buzz.
The timers for kids and transitions guide has more on using the rings for morning and bedtime routines.
For the full dentist-recommended clean, yes, and the 2 minute timer below runs exactly that. One minute is the starter target: for young kids, a midday brush at work, or anyone building the habit up from thirty rushed seconds.
Let the rings split it: five rings a quadrant. Upper right, upper left, lower left, lower right, moving on as each five empty, and the chime lands as you finish the last corner.
That is where the one minute brush usually starts. The rings give the minute a shape a small kid can watch emptying, and the chime decides when brushing ends, so the parent does not have to.
Add it as a browser source in OBS; the background stays transparent. Change t for any length.
A radial timer is a free online countdown timer you set in one click: pick a length, press Start, and an alarm sounds at zero. Run several timers at once, take one fullscreen, or pop one out picture-in-picture to float over other apps. Every timer keeps counting in a background tab, and any timer exports as a video. No download, no sign-up.
Its dial draws the countdown as 20 concentric rings, one for each twentieth of the duration. Rings empty one by one, outermost first, so a glance shows how far along you are without reading a digit.
Yes. The countdown follows the clock, so it stays on time while you work in another tab and still chimes at zero. The picture-in-picture popout keeps a small dial in view the whole way.
Yes. Any timer exports as an MP4 or a transparent WebM of the whole countdown, up to 4K and 60 fps, in 16:9, vertical, or square.
Yes. In OBS, add a browser source pointing at radialtimers.com/overlay?t=25m and a transparent dial counts down over your scene. Change t for any length, like 90s or 3h.
As many as you need. Each timer gets its own dial and runs on its own, which suits interval workouts, several dishes on the stove, or a room of activity stations.