College Savings Per Child Calculator

Calculate how much to save monthly for each child's college education. Factor in 529 plan growth, tuition inflation, and years until enrollment.

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%
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Monthly Savings Needed
$638.30
Projected College Cost
$216,113.22
in 15 years
Existing Savings Will Grow To
$13,795.16
Savings Gap
$202,318.06
Total You'll Contribute
$119,894.00
Sum of all values
Investment Growth
$96,219.22
free money from compounding
Planning notes, formulas, and examples

About the College Savings Per Child Calculator

The cost of a four-year college education can be substantial, with many public programs landing in the tens of thousands of dollars per year and many private programs costing much more. Tuition inflation also compounds the challenge, so families often need to save for a target that keeps changing over time.

Starting early is one of the biggest savings advantages. A monthly contribution begun at birth has far longer to compound than the same contribution started years later.

This calculator helps you estimate the monthly savings needed per child to reach a college-funding goal while accounting for investment growth and tuition inflation.

When This Page Helps

College is one of the largest expenses many families plan for. Starting a savings plan early, even with modest contributions, can reduce the need for student loans or last-minute financial strain. Seeing the monthly target in one place makes it easier to adjust the goal, contribution pace, or school-cost assumption before the gap gets too large.

How to Use the Inputs

  1. Enter your child's age.
  2. Enter your college cost target (total 4-year cost).
  3. Enter expected annual tuition inflation rate.
  4. Enter expected annual investment return (529 plan or similar account).
  5. Enter any existing savings.
  6. Review the monthly contribution needed and projected growth.
Formula used
Future Cost = Target x (1 + Inflation)^Years Future Value of Existing = Existing x (1 + Return)^Years Gap = Future Cost - Future Value of Existing Monthly Contribution = Gap x (r / ((1 + r)^n - 1)) where r = monthly return rate, n = months until college

Example Calculation

Result: $346/month needed

Years to college: 18 - 3 = 15 years. Future cost: $120,000 x (1.04)^15 = $216,091. Existing $5,000 grows to about $13,795. The remaining gap is about $202,296, which works out to roughly $346 per month over 180 months at a 7% annual return assumption.

Tips & Best Practices

  • Start at birth if possible - 18 years of compound growth is your biggest advantage.
  • A 529 plan offers tax-free growth and tax-free qualified withdrawals.
  • Even $50-$100 per month from age 0 can create a meaningful head start.
  • Set up automatic contributions to improve consistency.
  • Grandparents and relatives can contribute to many 529 plans as gifts.
  • Adjust the target if you expect scholarships, in-state schools, or a community-college transfer path.
  • Increase contributions by $25-$50 each year as income grows.

The Power of Starting Early

A family that saves $250 per month from birth can accumulate far more by age 18 than a family that waits until middle school to begin. The biggest advantage is not contribution size alone - it is the number of years available for compounding.

Per-Child Strategy

With multiple children, many families prefer separate 529 accounts for each child. That makes it easier to tailor investment risk to age and to track funding goals independently.

Realistic Goal-Setting

Few families save 100% of projected college costs. A realistic goal is often 50-75%, with the remainder coming from aid, scholarships, cash flow during college, or manageable loans.

Sources & Methodology

Last updated:

Frequently Asked Questions

  • Many planners use broad ranges such as $25,000-$30,000 per year for in-state public schools, $45,000-$55,000 for out-of-state public schools, and $55,000-$80,000 or more for private schools. Use each school's published cost of attendance if you are targeting a specific list.