Simple Family Calculators for Everyday Parenting Questions
Quick answers for parents on pregnancy due dates, child growth, child benefits and nutrition — all in one place.
Family Calculators
Choose a calculator to get started. Each one gives you clear, easy-to-understand results.
Pregnancy Due Date Calculator
Estimate your baby's due date using your last menstrual period or conception date.
Use CalculatorChild Growth Calculator
Get general height and weight guidance by age with helpful information for parents.
Use CalculatorChild Benefits Calculator
Estimate possible child and family support payments with clear eligibility guidance.
Use CalculatorChild Nutrition Calculator
Estimate daily nutrition guidance for children by age with practical parent-friendly tips.
Use CalculatorWhy families use this site
Designed with parents in mind — straightforward, reliable and always free.
Free to use
All calculators and guides are completely free, no payment required.
Easy on any device
Works on phones, tablets and desktops — designed for busy parents.
Clear readable results
Results are presented in plain, jargon-free language.
Practical guidance
Each calculator is paired with guides to help you understand the results.
Trusted family topics
Coverage focused on what actually matters to families with young children.
No signup required
Use every tool instantly — no account, no email, no personal data stored.
Popular Guides
Practical reading to help you understand and use the calculator results.
How to calculate your due date
A clear guide to the two main methods for estimating your pregnancy due date.
Read Guide Child GrowthUnderstanding child growth
What height and weight measurements mean for your child's development.
Read Guide Child BenefitsChild benefits explained
A plain-language guide to how child benefits work and what families may be entitled to.
Read Guide Child NutritionNutrition basics for kids
Simple guidance on what children need each day for a balanced, healthy diet.
Read GuideReady to Get Started?
Open any calculator and get clear results in seconds — no signup, completely free.
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