Contraction Timer
Tap Start when a contraction begins, Stop when it ends. The timer tracks duration and frequency automatically.
Press Start when a contraction begins.
Contraction Log
This tool is for informational and educational purposes only. It is not a substitute for professional financial, medical, legal, or engineering advice. See Terms of Service.
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Request a ToolHow to Use the Contraction Timer
Timing contractions accurately helps you and your healthcare provider know when labor is progressing and when it is time to go to the hospital or birth center. Here is how to use this timer:
- Press Start the moment a contraction begins. The timer counts up in real time.
- Press Stop when the contraction ends. The duration is recorded automatically.
- Repeat for each contraction. The tool calculates the average duration, average frequency (time between contraction starts), and tells you whether you meet the 5-1-1 rule.
- Contact your provider or go to the hospital when the 5-1-1 rule is met: contractions 5 minutes apart, lasting 1 minute each, for at least 1 hour.
Use the Copy button to send a summary to a partner or birth support person, or to share with your provider by phone.
About the 5-1-1 Rule for Active Labor
The 5-1-1 rule is a general guideline used to recognize active labor: contractions occurring every 5 minutes or less, lasting at least 60 seconds each, consistently for a full hour. When these three criteria are met for a first-time mother, it is typically time to head to your birth location. For subsequent pregnancies, many providers suggest a 5-1-1 or even a 7-1-1 rule because labor often progresses faster. Always follow the specific guidance from your obstetrician, midwife, or birth center, as individual circumstances vary.
Early labor contractions are typically 15-30 minutes apart and last 30-45 seconds. Active labor contractions become 3-5 minutes apart and last 45-60 seconds. Transition (the most intense phase) involves contractions 2-3 minutes apart lasting 60-90 seconds. Timing helps you identify which phase you are in.
Frequently Asked Questions
What is the 5-1-1 rule for contractions?
The 5-1-1 rule states it is time to go to the hospital when contractions are 5 minutes apart (from the start of one contraction to the start of the next), lasting at least 1 minute each, for at least 1 hour. This pattern suggests you are in active labor. Some providers use a 4-1-1 rule for first-time mothers. For second or subsequent pregnancies, labor can progress much faster so your provider may advise going in sooner.
How do I time a contraction correctly?
A contraction starts when the uterus begins to tighten and ends when it fully relaxes. Duration is measured from start to finish of a single contraction. Frequency is measured from the start of one contraction to the start of the next contraction (not the end of one to the start of the next). Using this timer, press Start at the first sign of tightening and Stop when you feel fully relaxed again.
How is labor different from Braxton Hicks contractions?
Braxton Hicks contractions are irregular, usually painless tightenings that do not follow a pattern and do not increase in intensity over time. True labor contractions are regular, progressively closer together, longer in duration, and more intense with each hour. Walking usually eases Braxton Hicks but has no effect on true labor contractions. If you are unsure whether you are in labor, call your healthcare provider.
When should I call my provider before the 5-1-1 rule is met?
Call your provider immediately regardless of contraction timing if your water breaks, if you have vaginal bleeding heavier than spotting, if you notice the baby is not moving as expected, if you have severe headaches or vision changes, or if contractions feel extremely intense from the start. These signs require prompt medical evaluation. The 5-1-1 rule is a guideline for uncomplicated labor progression, not a substitute for clinical judgment.