Calculators for parents and parents-to-be
Due dates, pregnancy weeks and child growth.
Personal Finance
- Life Insurance CalculatorEstimate how much life cover your family would need to replace income and clear debts.
- Human Life Value CalculatorEstimate the economic value of your future earnings to size a term insurance policy.
- College Savings CalculatorWork out how much to save each month to cover a child's future education costs.
- 529 Plan CalculatorProject the value of a US 529 college savings plan with tax-free growth.
Investing
Loans & Mortgages
Tax & Salary
- Maternity & Paternity Pay CalculatorWork out UK Statutory Maternity and Paternity Pay week by week.
- Child Tax Credit CalculatorWork out the 2026 Child Tax Credit and its refundable part.
- Canada Child Benefit CalculatorEstimate monthly Canada Child Benefit payments for July 2026 to June 2027.
- High Income Child Benefit Charge CalculatorSee how much Child Benefit you keep when income is over £60,000.
Health
Math
- Multiplication Table CalculatorThe times table of any whole number, decimal or fraction, up to any row.
- Long Multiplication CalculatorMultiply, add or subtract with the column method, showing every step.
- Equivalent Fractions CalculatorFind fractions equal to a given one, or compare two fractions, with bars and a number line.
- Integer CalculatorAdd, subtract, multiply and divide negative numbers, with the sign rules and a number line.
- Place Value CalculatorSee each digit's place value, the expanded form and the number in words.
- Long Division CalculatorDivide numbers with every long division step laid out, including remainders.
- Divisibility Rules CalculatorTest a number against the divisibility rules for 2 to 12, with the working for each rule.
- Profit and Loss CalculatorProfit or loss and its percentage from CP and SP, SP or CP from a %, and discounts on the marked price.
- Symmetry CalculatorLines of symmetry and rotational symmetry of polygons, quadrilaterals, circles and letters.
Education
- Chronological Age CalculatorFind exact age in years, months and days on a test date, as used in assessments.
- Graduation Year CalculatorFind what year a child starts school and graduates from their birth date.
- Test Score CalculatorTurn correct answers out of total into a percentage and letter grade.
- Marks Percentage CalculatorConvert obtained marks across subjects into an overall percentage.
- High School GPA CalculatorCalculate weighted and unweighted high school GPA with honors and AP classes.
Unit Converters
Statistics & Probability
Science
Food & Cooking
Pregnancy & Parenting
- When to Take a Pregnancy TestFind the earliest reliable day to take a pregnancy test.
- Due Date CalculatorEstimate your baby's due date from your last period, conception or IVF transfer.
- Contraction TimerTime labour contractions with one tap and check the 5-1-1 rule.
- Pregnancy Week CalculatorFind how many weeks pregnant you are and which trimester you are in.
- Conception Date CalculatorEstimate when conception likely happened from a due date or last period.
- Baby Growth Percentile CalculatorCompare a baby's weight, length and head size to WHO growth charts.
- Child Height PredictorPredict a child's adult height from parents' heights and current growth.
- Child BMI CalculatorFind BMI-for-age percentile for children and teens.
- IVF Due Date CalculatorCalculate a due date from a day-3 or day-5 embryo transfer.
- Pregnancy Weight Gain CalculatorSee a healthy weight gain range by week based on pre-pregnancy BMI.
- hCG Doubling Time CalculatorCalculate how fast hCG levels are doubling between two blood tests.
- Implantation CalculatorEstimate the implantation window and earliest day to take a pregnancy test.
- Baby Formula Feeding CalculatorEstimate how much formula or milk a baby needs per feed and per day.
- Baby Sleep Schedule CalculatorPlan naps and bedtime from your baby's age and wake windows.
- Baby Age CalculatorSee a baby's age in weeks and months, including corrected age for preemies.
- Child Growth Percentile CalculatorPlot a child's height and weight against growth percentiles for age.
- Cost of Raising a Child CalculatorEstimate the yearly and total cost of raising a child to adulthood.
- Childcare Cost CalculatorCompare the cost of daycare, nanny and after-school care options.