Cost of an Additional Child
Estimate the monthly and long-term cost of adding a child.
About Cost of an Additional Child
Adding a second child roughly follows the pattern of the first: recurring monthly costs plus annual items like education and activities. Multiplying the monthly figure by twelve months and again over eighteen years gives a lifetime-frame estimate. Families weighing a bigger household want a realistic number because child care alone can rival rent or a mortgage in many areas.
Formula
Cost of an Additional Child
Monthly cost = food + clothing + child care + healthcare + misc + education / 12
- misc
- Activities, entertainment and one-off spends
Worked example
With the default values below, Cost of an Additional Child returns Monthly Cost of $1,123.33. Change any input above and every figure here is recalculated in your browser.
Inputs used
- Food per month
- 250
- Clothing per month
- 80
- Child care per month
- 600
- Healthcare per month
- 60
- Education per year
- 400
- Activities and misc.
- 100
Results
- Monthly Cost
- $1,123.33
- Annual Cost
- $13,480.00
- Total to Age 18
- $242,640.00
Step by step
- 1Values used
- 2Cost of an Additional Child
- 3Monthly Cost= 1,123.33
- 4Annual Cost= 13,480.00
- 5Total to Age 18= 242,640.00
Assumptions and limits
- The result is derived only from the 6 inputs listed above. Anything not among them is not part of the calculation.
- In particular, this calculator does not take inflation, tax or fees or charges into account.
- Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
- Costs vary hugely by region and lifestyle; this is a planning estimate, not a quote.
How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.
Costs vary hugely by region and lifestyle; this is a planning estimate, not a quote.
Frequently Asked Questions
How is Cost of an Additional Child calculated?
Monthly cost = food + clothing + child care + healthcare + misc + education / 12 Adding a second child roughly follows the pattern of the first: recurring monthly costs plus annual items like education and activities. Multiplying the monthly figure by twelve months and again over eighteen years gives a lifetime-frame estimate.
Why does Cost of an Additional Child matter?
Families weighing a bigger household want a realistic number because child care alone can rival rent or a mortgage in many areas.
What values do I need to enter?
This calculator takes 6 inputs: Food per month, Clothing per month, Child care per month, Healthcare per month, Education per year, Activities and misc.. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.