Dental Health Time
Español My Smile

Kids' Teeth

Teething Calculator

When will your baby get teeth? Enter your baby's birth date to see which teeth are usually in by now, which are coming in, and when to expect the next ones.

Example shown. Enter your baby's birth date.

Stays on this device. Nothing is sent anywhere.

Age ranges from

Two respected charts that differ a little. ADA is the default.

Age

ADA ranges

Usually in0
Coming in now0
Not yet20
UPPERLOWERPATIENT'S RIGHTLEFTABCDEFGHIJTSRQPONMLK

Tap a tooth for its name, number and timing.

Coming next

    When each pair of baby teeth usually comes in
    TeethUsually come inFor your babyStatus

    Baby teeth order and timing

    Most children get 20 baby (primary) teeth, and the first ones usually appear at about 6 months. They tend to arrive in pairs, one on each side. The two lower front teeth (teeth O and P) usually come first and the upper back molars last.

    Teeth (pair)Usually come in (ADA)Other reference (AAPD)Usually fall out (ADA)
    Lower central incisors6–10 months5–8 months6–7 years
    Upper central incisors8–12 months6–10 months6–7 years
    Upper lateral incisors9–13 months8–12 months7–8 years
    Lower lateral incisors10–16 months7–10 months7–8 years
    Upper first molars13–19 months11–18 months9–11 years
    Lower first molars14–18 months11–18 months9–11 years
    Upper canines16–22 months16–20 months10–12 years
    Lower canines17–23 months16–20 months9–12 years
    Lower second molars23–31 months20–30 months10–12 years
    Upper second molars25–33 months20–30 months10–12 years

    These are typical ranges, not deadlines. The American Academy of Pediatric Dentistry notes that many otherwise normal infants don't follow the schedule exactly. A few weeks or months early or late is common. Log your baby's dates in the Baby Teeth Tracker, or see baby and adult teeth at any age in the Tooth Eruption Chart.

    Signs of teething

    According to the American Academy of Pediatrics, typical signs are:

    • Fussiness and wanting to chew on things
    • More drooling than usual
    • A rash around the mouth or chin from the drool

    Teething does not cause fever, diarrhea or excessive crying. If your baby has any of these, call your pediatrician instead of assuming it's a tooth.

    What helps, and what to avoid

    Things that help (American Academy of Pediatrics):

    • A soft rubber or plastic teether
    • A clean, damp washcloth chilled in the freezer (but nothing hard and frozen solid)
    • Gently rubbing the gums with a clean finger
    • For babies over 6 months, a cold drink of water in a sippy cup

    Things to avoid:

    • Numbing gels and homeopathic teething tablets. Drool washes gels away quickly, and the FDA warns that products containing benzocaine or lidocaine should not be used for teething pain in children: they can cause serious harm, including a dangerous blood condition (methemoglobinemia).
    • Frozen-solid teethers, which can be too hard for sore gums.

    If your baby seems very uncomfortable, ask your pediatrician whether a dose of acetaminophen is right for them.

    Clean new teeth from the first one

    Start brushing as soon as the first tooth appears. For children under 3, the ADA, AAPD and AAP all recommend a smear of fluoride toothpaste about the size of a grain of rice, twice a day. The Kids Fluoride Calculator shows the right amount at true size.

    Your baby's first dental visit

    Pediatric dentists recommend the first dental visit when the first tooth comes in, and no later than the first birthday. It's usually a short, gentle check, plus advice on brushing, feeding and fluoride. The First dental visit reminder button above puts a reminder in your calendar.

    How this calculator works

    1. It works out your baby's age from the birth date you enter. The date stays in your browser and is never sent anywhere.
    2. It compares that age with the published eruption range for each pair of teeth. ADA is the default; you can switch to AAPD.
    3. A pair counts as coming in now while your baby's age is inside its range, and usually in once your baby is past the end of it. Ranges are read in whole months, so "8–12 months" covers babies up to the day they turn 13 months.
    4. The dates under For your baby turn those ranges into calendar months.

    This is a guide to what's typical. It can't tell you whether your own baby's teeth are on time; your pediatrician or dentist can.

    Frequently asked questions

    My baby is 9 months old and has no teeth. Is that normal?
    Often, yes. The first teeth usually come in between 6 and 10 months (ADA), but many healthy babies are earlier or later. Mention it at your baby's first dental visit, which pediatric dentists recommend by the first birthday.
    Which baby teeth come in first?
    Usually the two lower front teeth (lower central incisors), at about 6–10 months. The upper front teeth usually follow at 8–12 months.
    Does teething cause a fever?
    No. The American Academy of Pediatrics says teething does not cause fever, diarrhea or excessive crying. If your baby has a fever, call your pediatrician.
    When are all 20 baby teeth in?
    The last ones, the upper second molars, usually come in at 25–33 months (ADA). Most children have all 20 baby teeth by around age 3.
    Why do the ADA and AAPD charts give different ages?
    They come from different sources. The AAPD chart is adapted from a classic 1933 study, and the ADA chart was published in 2012. AAPD ranges start a little earlier for some teeth. Both are reasonable guides, which is why the calculator lets you switch.
    How long does teething last?
    On and off from about 6 months, when the first teeth usually appear, until the last baby teeth, the upper second molars, come in at about 25–33 months (ADA). Most children have all 20 baby teeth by around age 3. The table on this page shows when each pair usually arrives.

    Sources

    1. American Dental Association (MouthHealthy). Primary Tooth Development (eruption chart). 2012. Accessed October 26, 2026.
    2. American Dental Association (MouthHealthy). Eruption Charts. Accessed October 26, 2026.
    3. American Academy of Pediatric Dentistry. Dental Growth and Development (chronology of the human dentition). Accessed October 26, 2026.
    4. American Academy of Pediatric Dentistry. Periodicity of Examination, Preventive Dental Services, Anticipatory Guidance/Counseling, and Oral Treatment for Infants, Children, and Adolescents. latest revision 2022. Accessed October 26, 2026.
    5. American Academy of Pediatrics (HealthyChildren.org). Teething Pain Relief: How to Soothe Your Baby's Discomfort. updated July 9, 2025. Accessed October 26, 2026.
    6. U.S. Food and Drug Administration. Safely Soothing Teething Pain in Infants and Children. content current as of June 26, 2024. Accessed October 26, 2026.
    7. American Dental Association. Fluoride: Topical and Systemic Supplements (Oral Health Topics). Accessed October 26, 2026.
    8. Cleveland Clinic. Teeth: Anatomy, Types, Function & Care. last updated January 26, 2023. Accessed October 26, 2026.

    Last reviewed by the Dental Health Time editorial team, against the sources above. How we review.

    Baby Teeth TrackerLog each tooth in and out, print a keepsake Adult Teeth PredictorLosing-teeth timeline from now to age 21 Kids Fluoride CalculatorRice-grain vs pea size, and the supplement chart Tooth Eruption ChartAny age → which baby and adult teeth are in