A circuit-training block
Start the timer when the activity begins, then use the visual ring to check progress without reading a clock.
Free online countdown
18 Minute Timer
Eighteen minutes can be divided into three six-minute sections or six three-minute rounds.
Ready
Keyboard: Space starts or pauses, R resets, F enters fullscreen.
Practical ideas
What can you time in 18 minutes?
A focused editing pass
Start the timer when the activity begins, then use the visual ring to check progress without reading a clock.
A lesson practice activity
Start the timer when the activity begins, then use the visual ring to check progress without reading a clock.
A useful way to run this timer
Plan the section boundaries in advance because this timer signals the end of the whole block.
Choose another duration
Related online timers
17 MinutesSeventeen minutes is long enough to develop an idea while retaining the urgency of a short timer.
19 MinutesNineteen minutes offers nearly a full twenty-minute block with a naturally firm stopping point.
16 MinutesSixteen minutes allows four equal four-minute stages, which makes multi-step routines easy to pace.
20 MinutesTwenty minutes is a versatile block for concentration, exercise, recovery, and scheduled routines.
15 MinutesFifteen minutes is a familiar quarter-hour block for meetings, lessons, study, and recovery.
21 MinutesTwenty-one minutes divides naturally into three seven-minute stages for structured sessions.
Timer help
Frequently asked questions
How do I start the 18 minutes timer?
Press Start to begin the preset 18 minutes countdown. You can pause, reset, change the duration, enter fullscreen, or share the page.
Will the timer stay accurate in a background tab?
The timer calculates from a fixed end time instead of trusting delayed browser intervals. Keep the tab open and your device awake if you need to hear the alarm.
How many seconds are in 18 minutes?
18 minutes equal 1,080 seconds.