Contraction Timer
Time your active contractions and monitor duration and frequency.
Customize Inputs
Calculation Results
Active Contraction Logger
0.0s
Real-time Contraction Counter
CURRENT ACTIVE TIMER
Metrics Analysis
How This Calculator Works
Calculates the real-time duration and interval frequency between contraction cycles to monitor active labor stages.
Interactive Contraction Timer — Labor Counter
Time contractions during labor and know when to safely head to your hospital or birth center.
How to Measure Contractions
Measure duration from the start of a contraction to its end. Measure frequency from the start of one contraction to the start of the next.
Distinguishing False Labor (Braxton Hicks)
Braxton Hicks contractions are irregular, do not increase in intensity, and often subside with hydration or position changes.
Clinical Standard Reference Guideline:
ACOG Stage 1 Labor definitions.
Frequently Asked Questions (FAQ)
Q:What is the 5-1-1 Rule?
Go to the hospital when contractions are: exactly 5 minutes apart, lasting for at least 1 minute (60 seconds) each, and this pattern has continued for at least 1 full hour.