Contraction Frequency Timer

This timer counts events within rolling time windows rather than tracking individual intervals. Tap the button each time an event happens. The display shows how many events have occurred in:

• The last 10 minutes
• The last 30 minutes
• The last 60 minutes (1 hour)

Frequency tracking is more useful than individual gaps when patterns matter more than precision. For tracking contractions, providers often want to know: are they getting closer together over time? A simple count per hour shows that trend more clearly than reading gap times one at a time.

The 5-1-1 rule mentioned in many maternity guides asks: are contractions arriving roughly every 5 minutes (so about 12 per hour), each lasting at least 1 minute, sustained for at least 1 hour? This calculator helps with the “12 per hour” half. For a rate of 12/hour you should see roughly 6 events in 30 minutes and 2 in 10 minutes — and the trend should be holding or rising, not dropping back down.

Other uses for frequency tracking:

• Counting infant kicks during pregnancy (the “kick count” guideline often is 10 movements within 2 hours)
• Recording panic or migraine episodes per day for medical follow-up
• Heart rate counting (tap with each pulse for 15 seconds, multiply by 4)
• Any episodic event you want to log over the day

How to read the rolling windows: each window is sliding, not aligned to clock boundaries. The “last 10 minutes” means exactly the last 600 seconds from now. As time passes, old events fall out of the window even without tapping.

This is a browser-only timer. No data is recorded externally. Refreshing the page clears all history. If you want a permanent record, screenshot or copy the table before leaving.