On a high-spend budget the weekly amount needed increases to $405 a week.
Parents can expect to pay an average of $1470 a year on food and nutrition supplies for their baby, for breastfeeding gear, solid food, utensils and bibs and $1750 for items such as nappies, baby wipes and creams.
BNZ estimates bathing supplies for a baby will cost parents about $169 a year, and calculates $220 will be spent on baby clothes each year.
The highest expense for raising a child in New Zealand is childcare, costing parents an average of $8750 a year for one child.
Bedtime supplies are also costly, estimated to cost an average of $1285 for a cot, mattress, sheets and mattress protectors, a baby monitor and a portacot.
Keeping the baby entertained or taking it to see family, friends or to enjoy some fresh air also comes at a price.
Parents can expect to pay $280 a year on play essentials such as an activity mat, rattles, mobiles and a bouncinette, and about $650 a year on a car seat, stroller and a carry pack.
Additional bills, finances and insurance associated with raising a child is estimated to be an extra $1260 a year when two become three.
The weekly cost of raising a baby increases when the child becomes a toddler.
BNZ estimates parents spend an average of $391 a week for a child aged 1-3, or a yearly total of just over $20,000, as the cost of all categories increases significantly.
The cost of just clothing for a toddler is estimated to be $800 a year, up from an average of $220 for the first year of a child's life.
Raising a child in the UK is significantly more expensive compared to raising a child here in New Zealand.
Although the cost of supplies for newborns such as creams and clothing may work out to be cheaper, the price of childcare only for a baby aged 1 or under is £6000 - a staggering $11,500 - the New Zealand equivalent for a toddler aged between 1 and 3.
According to National Westminster Bank, Nat West, the total spend on raising a child from birth to 17 years old in the UK is £192,187 - or $370,500 - more than $85,000 higher than the price of raising a child until age 18 in New Zealand.
Nat West estimates the annual cost of raising a baby aged 12 months and under as £9364, the equivalent of just over $18,000 a year.