Guides & collections
All tools
Allowance Age Guide
Age-appropriate allowance amounts, money skills to teach, and allowance philosophy comparison
Allowance Calculator
Calculate age-appropriate weekly allowance for children based on age and chores
Baby Clothing Size Chart
Find the right baby clothing size by age, weight, and height. Compare sizes across popular brands like Carter's, H&M, Gap, and more.
Baby Feeding Calculator
Calculate how much breast milk or formula your baby needs by age and weight. Get per-feeding amounts, daily totals, and a sample feeding schedule from newborn through 12 months.
Baby Formula Cost Calculator
Calculate monthly baby formula costs based on baby's age, feeding amount, and formula type
Baby Milestone Tracker
Track your baby's developmental milestones from 0-24 months. Check off motor, cognitive, social, and language milestones based on CDC/AAP guidelines with progress tracking and doctor-flag alerts.
Baby Name Generator
Discover baby names filtered by origin, style, and starting letter for boys, girls, or gender-neutral
Baby Name Meaning Lookup
Search 500+ baby names by meaning, origin, and gender — with similar name suggestions and favorites
Baby Name Popularity Checker
Look up any baby name to see its rank, frequency, peak decade, origin, and similar name suggestions. Top 200 names with 2024 data.
Baby Sleep Schedule by Age
Enter your baby's age and wake-up time to get a personalized daily sleep schedule with nap windows, wake windows, and suggested bedtime (0-24 months).
Baby Weight Percentile Calculator
See where your baby falls on the WHO growth chart. Enter age, weight, and sex to instantly calculate their weight-for-age percentile (0-36 months).
Back-to-School Supply Budget
Estimate school supply costs by grade level, school type, and tech needs — with category breakdown
Breastfeeding Calorie Calculator
Calculate extra daily calories needed while breastfeeding based on nursing frequency and baby age
C-Section Recovery Timeline
Week-by-week guide to C-section recovery: what to expect, activity restrictions, and warning signs
Car Seat Expiration Checker
Look up car seat expiration by brand, seat type, and manufacture date — with NHTSA safety guidelines
Car Seat Guide
Find the right car seat type for your child's age, weight, and height
Child BMI Calculator
Calculate BMI percentile for children ages 2-18 using CDC growth chart standards
Child Height Predictor
Predict your child's adult height using the mid-parental height method and bone age formula
Childcare vs Nanny vs Au Pair Comparison
Compare total annual costs for daycare, in-home daycare, nanny, and au pair with DCFSA tax benefit impact
Children's Clothing Size Chart
Find the right clothing size for children by age, height, and weight in US, UK, and EU sizes
College Fund Calculator
Calculate how much you need to save monthly to fund your child's college education
Cost of Raising a Child Calculator
Estimate the total cost of raising a child from birth to age 18 — broken down by category, income level, and region
Developmental Milestone Checklist
Track your child's milestones by age using CDC Learn the Signs. Act Early. guidelines
Diaper Cost Calculator
Estimate total diaper costs from birth through potty training. Compare budget, mid-range, premium, and cloth diaper tiers with wipes included.
Due Date Calculator
Calculate your estimated due date and trimester from your last period or conception date
Epidural vs Natural Birth Comparison
Evidence-based comparison of epidural and unmedicated birth: pain management, mobility, interventions, and recovery
Fever Dosing Calculator
Calculate safe ibuprofen and acetaminophen doses for children by weight with concentration-specific dosing
Formula Mixing Calculator
Calculate water-to-powder ratios for any baby formula brand. Enter your bottle size, select a brand, and get exact scoops, water amounts, and final volume. Supports batch prep for multiple bottles.
Maternity Leave Pay Calculator
Estimate your paid family and medical leave (PFML) benefits by state — CA, NY, WA, NJ, MA, and more
Pediatric BMI Percentile Calculator
Calculate BMI percentile for children ages 2–20 using CDC growth chart data with metric and imperial support
Potty Training Readiness Quiz
Find out if your toddler is ready for potty training with this quick readiness assessment
Preschool Cost by State
Average annual preschool costs by state for ages 3–4 with Head Start eligibility and CCDF subsidy information
Safe Sleep Checklist
Interactive AAP safe sleep environment checklist based on 2022 safe sleep guidelines
School Supply Calculator
Generate a complete school supply list by grade level with estimated costs
Screen Time Guide
Get age-appropriate daily screen time limits and activity recommendations from pediatric guidelines
Summer Camp Cost Comparison
Compare up to 4 summer camps side by side with true total costs including hidden fees, meals, and transportation
Toddler Shoe Size Chart
Find the right shoe size for toddlers and children by foot length or age in US, UK, and EU sizes
Tooth Fairy Going Rate
Average tooth fairy payments by US region with milestone tooth notes — 2025 data from Delta Dental poll
Which Parenting Calculator Do You Need?
Parenting in the early months and years involves a constant stream of number questions: Is my baby growing on track? How much formula should I be mixing? What does daycare actually cost in my city? These tools give you quick, evidence-based answers drawn from standard pediatric references and cost data.
Tracking Your Baby's Growth and Development?
Growth percentiles are the standard way pediatricians assess whether a baby's weight and height are within normal range. The Baby Weight Percentile Calculator plots your baby's weight and height against WHO and CDC growth charts, showing the percentile rank for age and sex. A low percentile isn't automatically concerning — pediatricians look for consistent tracking on the growth curve rather than absolute percentile rank.
Developmental milestones vary but follow a general sequence. The Baby Milestone Tracker shows typical age ranges for motor, cognitive, and social milestones from birth through 24 months — useful context before a pediatric visit or when comparing your baby's progress against published guidance. Parents who notice their baby's clothing sizes change faster than expected can use the Baby Clothing Size Chart to match current weight and height to standard size ranges across brands.
Baby name trends matter to many parents. The Baby Name Popularity Tracker shows how the popularity of any name has changed over decades using Social Security Administration data — so you can see whether a name is rising, peaking, or fading before finalizing your choice.
Feeding, Sleeping, and Daily Care?
Feeding amounts are a constant source of uncertainty for new parents. The Baby Feeding Calculator estimates how much breast milk or formula a baby needs per feeding and per day based on weight and age, using standard pediatric guidelines. For formula preparation, the Formula Mixing Calculator calculates exactly how much powder and water to combine for a target volume at the correct concentration — reducing preparation errors that can cause under or overfeeding.
Sleep is the other constant concern in the first year. The Baby Sleep Schedule Calculator builds a nap and overnight sleep schedule based on your baby's age and current wake windows — showing how many naps per day, maximum awake time between sleeps, and suggested bedtime for different ages.
Understanding the Cost of Raising a Child?
Diapers are a significant recurring expense that parents rarely calculate in advance. The Diaper Cost Calculator estimates monthly and total diaper spending from newborn through potty training, comparing cloth vs. disposable costs over the full period. For the big picture, the Cost of Raising a Child Calculator estimates total spending from birth through age 17 based on income bracket, family size, and geographic region — drawing on USDA annual cost data.
Using Parenting Tools Alongside Pediatric Care
Parenting calculators are designed to complement pediatric care, not replace it. The Baby Weight Percentile Calculator gives context for understanding growth chart results between appointments — if your baby's percentile shifted from the 50th to the 30th, you can look up whether this is a typical normal variation or worth raising with your pediatrician. Having this context makes well-child visits more productive because you arrive with specific observations rather than general concerns.
The Baby Milestone Tracker serves the same purpose for developmental milestones. Milestones have wide normal ranges — rolling typically occurs between 3 and 5 months, walking between 9 and 15 months. The tracker shows where a skill falls on the typical range so you can assess whether it warrants discussion with your pediatrician.
For feeding specifically, the Baby Feeding Calculator provides weight-based estimates that account for developmental stage. A 2-month-old and a 6-month-old of the same weight have different feeding needs because gut development and feeding mechanics change significantly. The calculator adjusts for both factors. All tools run in your browser — no account needed, no personal data stored or transmitted.
FAQ
Are these tools free?
Yes, every tool is completely free to use with no signup, no account, and no hidden fees.
Is my family's data safe?
Absolutely. All calculations run locally in your browser. No personal or medical data is sent to any server.
Do I need to create an account?
No. Every tool works instantly with no registration required. Just open and start using.
What does a baby's weight percentile actually mean?
A baby at the 40th percentile weighs more than 40% of babies of the same age and sex. Pediatricians look for consistent growth along a curve rather than a specific percentile — a baby consistently at the 10th percentile may be perfectly healthy. Talk to your pediatrician if your baby's percentile drops significantly between visits.
How much formula should I give my baby per feeding?
A general guideline is 2.5 oz (75mL) per pound of body weight per day, divided across feedings. A 10-pound baby needs about 25 oz per day. The baby feeding calculator gives age and weight-based estimates for both formula and breast milk volumes.
How accurate is the cost of raising a child calculator?
The calculator uses USDA expenditure data by income bracket and region, which is updated periodically. The results are national averages and broad ranges — actual costs vary significantly based on your city, childcare choices, schooling, and lifestyle. Use the estimate for financial planning purposes rather than precise budgeting.
Are cloth diapers really cheaper than disposables?
Over the full diapering period, cloth diapers typically cost less than disposables when you account for the full diapering period from birth through potty training — but the upfront investment is higher and costs depend heavily on laundry frequency and which cloth system you use. The diaper cost calculator lets you model both scenarios with your specific assumptions.