calcs.mom

32 gentle calculators for pregnancy, baby, and parenting — due dates, ovulation, growth percentiles, feeding logs, and more. No jargon, no guesswork.

calcs.mom brings together 32 calculators for pregnancy, babies, and parenting — all in one gentle, ad-free app. No jargon, no guesswork, just simple tools to help you track growth, milestones, and everyday questions, in your own language.

PREGNANCY & FERTILITY • Due Date Calculator — estimate your baby's arrival from your last period, conception date, or IVF transfer • Reverse Due Date Calculator — work backward from a due date to conception • IVF Due Date Calculator — built specifically for IVF transfer dates • Ovulation Calculator — find your most fertile days • Conception Calculator — estimate when your baby was conceived • Implantation Calculator — estimate your implantation window • Chances Calculator — see your odds of conceiving in a given cycle • Period & Cycle Calculator — track your cycle and predict your next period • Pregnancy Test Calculator — find the earliest reliable day to test • Pregnancy Wheel — a classic pregnancy wheel, digitized • Weeks From Today — jump straight to "how many weeks will I be on this date" • Weeks to Months Calculator — convert pregnancy weeks to months • Pregnancy Nutrition Guide — trimester-by-trimester nutrition pointers • Weight Gain Calculator — healthy pregnancy weight gain ranges • Chinese Gender Predictor — the traditional Chinese gender chart, for fun • Eye Color Predictor — a playful estimate of your baby's eye color odds

BABY & NEWBORN • Baby Age Calculator — track your baby's age in weeks, months, and days • Baby BMI Calculator — check your baby's BMI against standard growth curves • Baby Formula Calculator — estimate daily formula needs by age and weight • Baby Sleep Calculator — age-appropriate sleep and nap guidance • Newborn Weight Loss Calculator — track normal post-birth weight loss and regain • Feeding Log — log feeds and see patterns over time • Growth Percentile Calculator — plot height, weight, and head circumference on standard percentile charts • Medicine Dosage Calculator — weight-based dosage guidance for common children's medicines

KIDS & FAMILY • Child BMI Calculator — BMI tracking for older kids • Adult Height Predictor — a fun estimate of your child's eventual adult height • Kids Shoe Size Calculator — convert age or foot length to shoe size • Bike Size Calculator — find the right bike size by height and age • Kindergarten Cutoff Calculator — check your child's eligibility based on local cutoff dates • Screen Time Calculator — age-appropriate screen time guidance • Allowance Calculator — figure out a fair weekly or monthly allowance

Every calculator is designed to be quick, clear, and reassuring — built for real moments during pregnancy and parenting, not clinical worksheets. calcs.mom works offline, keeps your data on your device, and is available in over 20 languages.

calcs.mom is designed for general guidance and peace of mind. It doesn't replace advice from your doctor, midwife, or pediatrician — always check with a healthcare professional for anything medical.