Baby Teeth Calculator

See when your baby’s teeth are likely to come through, with a personal teething timeline based on their date of birth.

Based on ACOG, WHO and NHS guidance. Calculations run in your browser, nothing is stored.

When do babies start teething?

Most babies get their first tooth between 6 and 10 months, usually one of the bottom front teeth. Some are born with a tooth, and some do not get their first until after their first birthday. All 20 baby teeth have usually come through by about 3 years.

Order of baby teeth

Teeth usually appear in this order: lower front teeth, upper front teeth, the teeth next to them, first molars, canines and finally the second molars. Our timeline uses the typical age ranges published by the American Dental Association.

Signs of teething

  • Drooling more than usual
  • Red, swollen gums
  • Chewing on fingers or toys
  • Being more irritable or unsettled

Teething does not usually cause a high temperature. If your baby has a fever of 38°C (100.4°F) or more, or seems unwell, contact a doctor.

Caring for first teeth

Start brushing as soon as the first tooth appears, twice a day with a smear of fluoride toothpaste the size of a grain of rice. Book a dental visit by your baby’s first birthday. Talk to your doctor or dentist if no teeth have appeared by 18 months.

Frequently asked questions

Gently rubbing the gums with a clean finger and giving a chilled (not frozen) teething ring can help. Ask a pharmacist about suitable pain relief for your baby’s age. Avoid teething gels with benzocaine and amber necklaces.

Yes. The order and timing vary, and it is usually nothing to worry about.

No. The calculation runs in your browser and nothing is stored.

Based on medical guidance

The formula and sources for this tool are listed on this page. See our editorial policy.

This tool gives an estimate for information only. It is not a substitute for advice from your doctor or midwife.