Baby & Family Calculators

62 calculators and 5 tools.

Baby Age in Months CalculatorFind baby age in months from years.Baby Feeding CalculatorFind baby feeds per day from total ml and per feed.Baby Feeding Calculator 2Find baby feeding bottles from days and bottles per day.Baby Feeding TimerStart a feeding timer in minutes.Baby Weight CalculatorFind baby weight gain from birth and current.Diaper CalculatorFind diapers needed from days and per day.Family Budget CalculatorFind family budget from members and per member.Child Age CalculatorFind child age from current year and birth year.School Fee CalculatorFind school fee total from monthly fee and months.Toy Cost CalculatorFind toy cost from toys and price each.Family Meal CalculatorFind family meal cost from members and cost each.Baby Sleep CalculatorFind baby sleep hours from naps and hours each.Parent Age CalculatorFind parent age from child age and difference.Sibling Age CalculatorFind sibling age from older age and difference.Family Size CalculatorFind family size from adults and children.Birthday Age CalculatorFind age at birthday from birth year and birthday year.Baby Milk CalculatorFind baby milk from feeds and ml each.Child Height CalculatorFind child height growth from start and current.Family Travel CalculatorFind family travel cost from members and cost each.Kids Snack CalculatorFind kids snack cost from kids and cost each.

Frequently asked questions

What are Baby & Family calculators?

Baby & Family calculators on BuildCalc are free tools that give instant results from the numbers you enter.

Are Baby & Family calculators free?

Yes, all Baby & Family calculators are free, with no sign-up and no download.

How do I use a Baby & Family calculator?

Open a calculator from the list, enter your numbers, and read the instant result.

Baby Clothes CalculatorFind baby clothes needed from days and outfits per day.Family Savings CalculatorFind family savings from income and expenses.Baby Growth CalculatorFind baby growth from birth and current length.Baby Food CalculatorFind baby food from meals and grams each.Baby Diaper Cost CalculatorFind baby diaper cost from diapers and price each.Family Income CalculatorFind family income from two incomes.Family Expense CalculatorFind family expense from categories and cost each.Child Study CalculatorFind child study time from days and hours per day.Child Play CalculatorFind child play time from days and minutes per day.Baby Vaccine CalculatorFind baby vaccine doses from months and doses per month.Family Car CalculatorFind family car cost from months and monthly cost.Baby Name CalculatorFind baby name length from first and last name letters.Baby Sleeping CalculatorFind baby sleeping hours from weeks and hours per week.Baby Playing CalculatorFind baby playing minutes from days and minutes per day.Family Dinner CalculatorFind family dinner cost from members and cost each.Family Lunch CalculatorFind family lunch cost from members and cost each.Family Breakfast CalculatorFind family breakfast cost from members and cost each.Family Holiday CalculatorFind family holiday cost from members and cost each.Family Car Calculator 2Find family car trips from weeks and trips per week.Family Home CalculatorFind family home rooms from floors and rooms each.Family School CalculatorFind family school fees from children and fee each.Final Baby CalculatorFind final baby clothes from months and clothes per month.Extra Baby CalculatorFind extra baby naps from weeks and naps per week.Baby Diaper CalculatorFind baby diaper count from days and diapers per day.Family Grocery CalculatorFind family grocery cost from weeks and cost per week.Baby Milk Calculator 14Find baby milk bottles from days and bottles per day.Baby Sleep Calculator 14Find baby sleep minutes from naps and minutes each.Baby Food CalculatorFind baby food jars from weeks and jars per week.Baby Clothes CalculatorFind baby clothes from months and clothes per month.Baby Toy CalculatorFind baby toys from months and toys per month.Family Trip CalculatorFind family trip cost from people and cost each.Baby Bottle CalculatorFind baby bottle ml from bottles and ml each.Baby Bath CalculatorFind baby bath minutes from baths and minutes each.Baby Story CalculatorFind baby story minutes from stories and minutes each.Family Meal CalculatorFind family meal cost from meals and cost each.Baby Growth CalculatorFind baby growth cm from months and cm per month.Baby Weight CalculatorFind baby weight gain from months and kg per month.Baby Vaccine CalculatorFind baby vaccine doses from years and doses per year.Family Budget CalculatorFind family budget total from months and monthly budget.Baby Shoe CalculatorFind baby shoe pairs from months and pairs per month.Baby Hat CalculatorFind baby hat count from seasons and hats each.Baby Blanket CalculatorFind baby blanket count from babies and blankets each.

Other tools

Family Photo CalculatorFind family photo count from events and photos each.Baby Care ListBuild a baby care list.Baby Name ListBuild a baby name shortlist.Baby Milestone ChecklistChecklist for baby milestones.
Baby Routine TimerA timer for a baby routine task in minutes.
Fast results

Instant result, no sign-up.

Free to use

All tools are free.

Formula shown on the page

Each page shows the formula it uses, so you can check the result yourself.

Works on mobile

Built for phone browsers.

Start with a free calculator

Search, pick a calculator, and get an instant result. No sign-up, no download.

Browse categories Read the blog