Enter a date of birth

Date of Birth

Name (optional)

Mode:

You are

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months old

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Years

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Weeks

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Days

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Hours (live)

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Minutes (live)

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Seconds (live)

Life in perspective

Some less common ways to think about your time on Earth.

♥

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Estimated heartbeats

Formula: days × 24 × 60 × 70 beats/min

🌙

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Time spent sleeping

Approx. 8 hours/day (⅓ of life)

🍽

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Time spent eating

Approx. 1.5 hours/day average

🌅

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Sunrises witnessed

One per day of life

Your place in the lifespan

Two ways to calculate what percentage of an average life you've lived. How is this calculated?

Method A — Birth life expectancy

—%

Your age divided by life expectancy at birth for your demographic.

Method B — Cohort adjusted

—%

Accounts for the fact that by surviving to your current age, your remaining life expectancy is higher than at birth.

Want to know exactly how much time remains? See your statistical life remaining → — a full actuarial breakdown of your time ahead.

Upcoming milestones

How many days until your next significant moment.

Developmental milestones

Based on CDC Learn the Signs. Act Early. guidelines.

Milestones for your child's age

These are general guidelines. Every child develops at their own pace. Discuss any questions or concerns with your child's pediatrician.

Source: CDC Learn the Signs. Act Early. program — last updated 2022. Visit cdc.gov/ncbddd/actearly for the complete guidelines.

Important: Developmental milestones are general guidelines based on population averages. Many children reach milestones earlier or later than the listed ages. If you have concerns about your child's development, please speak with your pediatrician.

Baby milestone resources

Beautifully designed printable tools for parents.

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Baby Milestone Tracker PDF

Track every milestone from birth through 5 years with this beautifully designed printable chart. Includes all CDC developmental domains.

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First Year Memory Journal PDF

A month-by-month keepsake journal for baby's first year. Prompts for memories, milestones, measurements, and firsts.

$12

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Monthly Photo Cards PDF

Printable milestone number cards for monthly baby photos. Months 1–12 plus special occasion cards. Print as many as you need.

Enter a date of birth

Method A — Birth life expectancy

Method B — Cohort adjusted

Milestones for your child's age

Share your age in months

Baby Milestone Tracker PDF

First Year Memory Journal PDF

Monthly Photo Cards PDF