Cervix Dilation: Labor Dilation Chart From 1 to 10 cm and How Long Each Stage Takes

Cervix dilation is how open your cervix is, measured from 0 to 10 centimeters, and you need to reach 10 cm (fully dilated) before you push your baby out.

“How dilated am I?” is one of the most common questions in late pregnancy and labor. Cervix dilation tells your care team how far labor has moved along, but the number alone cannot predict exactly when your baby will arrive.

Below you will find a dilation chart from 1 to 10 cm, realistic time ranges for first and later births, what being 1, 2 or 3 cm dilated really means, how checks are done, what helps (and what does not), and when to call.

What Is Cervix Dilation?

Your cervix is the lower, narrow end of your uterus. Near the end of pregnancy it softens, thins and starts to open. StatPearls, an NIH clinical reference, describes the first stage of labor as starting with the onset of labor and ending when the cervix is fully dilated to 10 cm.

Dilation is one of three things your provider checks. The other two are effacement (how thin your cervix is) and station (how low your baby’s head sits). We cover thinning in depth in our effacement guide, so this page focuses on the centimeters.

Cervix Dilation Chart: 1 to 10 cm

Everyone’s labor is different, so treat the right column as common experiences, not a checklist.

After your baby is born, the third stage is delivery of the placenta. StatPearls says it typically comes out within 5 to 30 minutes, and Mayo Clinic says within 30 minutes.

Want to know what each phase feels like in more detail? Read what contractions feel like and our guide to early labor vs active labor.

How Long Does It Take to Dilate From 1 to 10 cm?

There is no single answer. Published ranges are wide, and a big factor is whether you have given birth before.

A few details help these numbers make sense:

• The early centimeters are the slowest: StatPearls describes the latent phase as a period of slow cervical dilation, typically from 0 to 4 or 6 cm, and notes that it can last up to 20 hours in a first labor and up to 14 hours in later labors.
• Things speed up after 6 cm: StatPearls describes the active phase as the more rapid dilation from 6 cm to full. Mayo Clinic says the cervix opens about 1 cm an hour on average in active labor.
• Cleveland Clinic’s estimates: the first stage (0 to 10 cm) typically lasts 12 to 19 hours, shorter if you have given birth before.
• Averages hide a wide spread: StatPearls reports that the upper end (95th percentile) of pushing time in a first labor is about 2.8 hours without an epidural and 3.6 hours with one.

If you are near your due date and wondering how long all of this might be, our week-by-week guides to 39 weeks pregnant, 40 weeks pregnant and 41 weeks pregnant cover what to expect.

What 1, 2 and 3 cm Dilated Mean

Being told you are “1 cm dilated” or “2 cm dilated” at a late pregnancy appointment is exciting, but it does not tell you when labor will start. Cleveland Clinic explains that some people are 2 cm dilated and 30% effaced for weeks, while others stay at 0 cm until a few days before delivery. It also notes that no one can know exactly how long it will take before you are ready to push.

• 1 cm dilated: your cervix has started to open slightly. Labor could be days or weeks away, or closer.
• 2 cm dilated: still early. Cleveland Clinic’s example of staying at 2 cm for weeks is common.
• 3 cm dilated: you may be in early labor if you also have regular contractions, or simply getting ready. Your contraction pattern says more than the number.

Order also differs between pregnancies. Cleveland Clinic says that in a first delivery, the cervix usually effaces before it dilates, while dilating earlier is more common in second or third pregnancies.

Other early clues include losing your mucus plug and, sometimes, your water breaking. See signs of leaking amniotic fluid if you are unsure whether you are leaking.

Cervix Dilation vs Effacement vs Station

Your provider usually reports three findings together, such as “4, 80 and minus 1.” Here is what each part means:

• Dilation: how open the cervix is, in centimeters from 0 to 10.
• Effacement: how thin the cervix is, as a percentage. StatPearls describes it as the remaining cervical length compared with an uneffaced cervix. Mayo Clinic says you need to be 100% effaced and 10 cm dilated before a vaginal birth.
• Station: how far your baby’s head has descended in relation to bony points in the pelvis called the ischial spines. StatPearls describes stations from minus 5 (higher) to plus 5 (lower), with 0 at the spines.

Effacement has its own percent scale and timeline, which we explain in what effaced means.

How Cervical Checks Are Done

StatPearls describes the standard method as a sterile digital exam: your provider places two gloved fingers in the vagina, reaches the cervix and estimates the opening in centimeters by spreading the fingers in a “V” shape. The same exam is used to estimate effacement and station.

• You may feel pressure or brief discomfort. Ask your provider to pause if you need to.
• You can ask why a check is being done and what the result means for your plan.
• Cleveland Clinic notes that trying to check your own cervix is hard without training, and that only your provider can tell you where things stand.

Can You Dilate Faster? What the Evidence Says

Online lists of tricks are long; the evidence is short. Here is what higher-quality sources say:

• Staying upright and moving in early labor: a Cochrane review of positions and mobility found that the first stage of labor may be about one hour and twenty minutes shorter for people who were upright or walking than for those lying in bed, with less use of epidurals and a lower risk of cesarean. The studies were often of limited quality and mostly low risk.
• Comfort measures at home: for early labor, Mayo Clinic suggests walking, showering or bathing, relaxing music, breathing techniques and changing positions. Cleveland Clinic adds gentle stretches, a warm (not hot) bath or shower and a birthing ball. These help you cope; they are not guaranteed to change your number.
• Membrane sweeping: this is a procedure done by your provider at term, not something to try at home. A 2020 Cochrane review found that membrane sweeping may help labor start on its own and may reduce the need for formal induction, but the evidence was low certainty. Women found it could be uncomfortable, though many felt the benefits outweighed the harms.

Ask your provider before trying any herb, supplement or home remedy that promises to “open” your cervix.

Epidurals and Cervix Dilation

Many people wonder whether an epidural slows things down. The sources we checked focus mostly on the pushing stage:

• Mayo Clinic says pushing typically takes longer for people having their first baby and for those with an epidural.
• StatPearls reports average pushing times in a first labor of about 0.6 hours without an epidural and 1.1 hours with one, with the normal upper range also longer with an epidural.

If you would like an epidural, ask at a prenatal visit how timing works at your hospital.

Signs Your Labor Is Progressing

You cannot see your cervix, but your body gives clues that dilation is moving forward:

• Contractions change: Mayo Clinic says active labor contractions become stronger, closer together and more consistent.
• More pressure: Mayo Clinic describes more pressure in your back in active labor, and pressure in the lower back and rectum near the end.
• Bloody show: a clear pink or slightly bloody discharge, likely your mucus plug, according to Mayo Clinic.
• Your water breaks: Mayo Clinic notes this may happen in active labor if it did not happen earlier. Read more in our water breaking guide.
• An urge to push: tell your care team. Mayo Clinic says pushing before your cervix is fully open can cause swelling and delay delivery, so you may be asked to pant or blow through contractions until you are at 10 cm.

When to Go to the Hospital or Birth Center

Your provider’s instructions come first, so ask at a late pregnancy visit when they want you to come in. As a general guide, Cleveland Clinic says to call your provider or the hospital labor floor once contractions are about five minutes apart and have stayed that way for at least an hour, if your water breaks (with or without contractions), or if you are not sure whether you are in labor. Cleveland Clinic says you should be at your birthing center during active labor.

Have your bag ready a few weeks ahead with our hospital bag checklist.

Related Betteroo Guides

• induced labor
• how to induce labor
• Effacement
• Mucus Plug
• Water Breaking
• Signs of Leaking Amniotic Fluid
• 40 Weeks Pregnant
• Hospital Bag Checklist

When to Call Your Doctor or Midwife

Call 911 if you see or feel the umbilical cord in your vagina after your water breaks (Cleveland Clinic calls cord prolapse a medical emergency). Get help right away (Cleveland Clinic) for heavy bleeding, chest pain, shortness of breath, or dizziness or fainting.

Call your doctor or midwife right away if:

• Your water breaks, whether or not you are having contractions (Mayo Clinic, Cleveland Clinic).
• You have vaginal bleeding beyond light spotting; Mayo Clinic says to call right away for a lot of bleeding.
• Your contractions are about five minutes apart and have stayed that way for at least an hour, or follow the rule your provider gave you (Cleveland Clinic).
• Your baby is moving noticeably less (Cleveland Clinic).
• You have severe nausea and vomiting, or swelling in your legs, arms or face (Cleveland Clinic).
• You have a fever or simply feel that something is not right.

Before 37 weeks, call right away for any signs of preterm labor. Mayo Clinic lists regular or frequent tightening in the belly, a dull low backache, pressure in the pelvis or lower belly, mild belly cramps, light spotting or bleeding, a gush or trickle of fluid, and watery, bloody or mucus-filled discharge.

This article is general education, not medical advice. Your provider knows your history and can tell you what is normal for you.

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