300 seconds
The timer on this page counts down the second equivalent of five minutes. This is one of the most popular options for counting down seconds. It will be most convenient both for training in the gym with a smartphone, and for cooking in the kitchen with a countdown on a laptop in full-screen mode. At the end, you will hear a clear audio signal indicating the end of the timer.
Expand the timer to full screen for maximum usability.
The built-in conversion of seconds to minutes works automatically. You will always know how many minutes are 300 seconds, without additional calculations.
An online 300 seconds timer is convenient for controlling small intervals: short workouts, meditations, speed checks, and brief breaks. Starts with a single click and keeps counting even when you switch tabs.
In other units:
300 seconds equals 5 minutes.
No. The 300 seconds timer runs in the browser — on phone, tablet, or computer. No apps to install, no sign-up needed.
Yes, the countdown continues even when you switch tabs. The remaining time is also shown in the browser tab title, so you won't miss the end.
Yes, settings let you pick different sounds and adjust the volume. You can also mute it entirely.
Yes, there's a full-screen mode — handy for presentations, classes, workouts, and group sessions.
The timer uses the device's system clock and stays accurate even on long intervals. Countdown precision is to the second.
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