College Savings Calculator
College costs have risen ~5% per year for decades, which means a school that costs $30,000 today will cost roughly $49,000 when a newborn enrolls in 18 years. This calculator projects that inflation-adjusted cost and tells you exactly how much to save each month to get there.
Enter today's annual college cost, years until enrollment, current savings, and your expected return to get the monthly contribution needed — with a year-by-year savings growth projection.
Planning College Costs: What Parents Need to Know
College financial planning has two distinct challenges: the cost is enormous, and inflation makes it a moving target. A public in-state university currently costs about $28,000–$30,000 per year all-in (tuition, room, board, and fees). A private university averages $60,000+. Both figures rise roughly 4%–5% annually, which has been the historical norm since the 1980s. That means every year you wait to start saving costs more than just a year's worth of contributions — it also means your target is higher.
The good news: time is your biggest advantage. Starting when your child is a newborn and investing $300/month in a 529 earning 6% annually can accumulate over $100,000 by age 18 — enough to cover most of a public university's four-year cost after financial aid. Starting at age 8 requires over $700/month to reach the same goal.
How This Calculator Works
The calculator applies the college cost inflation rate to today's annual cost to find the projected cost in the enrollment year. It then multiplies by 4 for the full four-year cost. It grows your current savings to their future value at the investment return rate. The gap between the 4-year projected cost and your current savings' future value is what your monthly contributions need to fund. Finally, it calculates the monthly payment using the future value of an annuity formula to hit that gap exactly at enrollment.
| Today's Annual Cost | 5 Years | 10 Years | 15 Years | 18 Years |
|---|---|---|---|---|
| $20,000 (public in-state) | $1,978 | $1,002 | $533 | $358 |
| $30,000 (avg public) | $2,968 | $1,503 | $800 | $537 |
| $50,000 (private/out-of-state) | $4,947 | $2,505 | $1,333 | $895 |
| $65,000 (elite private) | $6,431 | $3,257 | $1,733 | $1,163 |
529 Plans: The Tax-Advantaged Vehicle for College Savings
A 529 college savings plan is the primary vehicle most families use. Contributions grow tax-free, and withdrawals are tax-free when used for qualified education expenses — tuition, room and board, books, and required fees at accredited schools. Most states offer a state income tax deduction for contributions (typically $2,500–$5,000 per year per contributor). The federal gift tax annual exclusion ($18,000 per person in 2026) allows substantial contributions without gift tax implications, and a provision called "superfunding" lets you contribute up to five years of the exclusion upfront ($90,000 per parent).
What Return Rate to Use
For a timeline of 10+ years, a 529 invested in age-based stock/bond funds has historically earned 5%–8% annually. For planning purposes, 6% is a reasonable middle estimate. As enrollment approaches, most 529 plans automatically shift to more conservative investments (bonds and money market funds), so the actual return in later years will be lower. Use the conservative end of the range (5%–6%) if you prefer to over-save slightly rather than under-save.
If you're also managing debt while trying to save for college, the Debt Payoff Calculator helps you balance both goals by showing debt payoff timelines with different payment amounts. For a broader look at your savings progress, the Savings Goal Calculator lets you model any savings target with a fixed monthly amount.
Frequently Asked Questions
What is a 529 plan?
A 529 is a tax-advantaged savings account designed for education costs. Contributions grow tax-free and withdrawals are tax-free for qualified education expenses. Most states offer a state income tax deduction for contributions. You can use 529 funds at any accredited college, university, or eligible K-12 school nationwide. If your child doesn't use the funds, you can transfer them to another family member.
How much should I save for college?
A common approach is to target one-third of projected costs (the other two-thirds coming from scholarships, grants, and student contributions/loans). For a public in-state school, that often means $40,000–$50,000 saved by enrollment. For private schools, $80,000–$120,000. Use this calculator with your specific college target and timeline for a personalized monthly figure.
What if I start saving late?
Starting late means you need to contribute more each month and/or accept a higher loan burden. If you're starting when your child is 10 or older, focus on the most affordable college types (public in-state), maximize contributions to a 529 now, and plan for your child to take on a manageable amount of student loans. Even partial savings significantly reduces loan burden at graduation.
What investment return should I assume?
For a 10+ year horizon, 6% annually is a reasonable planning estimate for a diversified stock/bond 529 portfolio. Use 5% if you want a conservative buffer. For shorter timelines (under 5 years), use 3%–4% to reflect a more bond-heavy, conservative allocation. Most 529 age-based plans automatically de-risk as enrollment approaches.
What happens to 529 funds if my child doesn't go to college?
You have several options: transfer the funds to another family member (including yourself), use them for trade/vocational schools, save them for graduate school, or withdraw the money (subject to income tax and a 10% penalty on earnings). Beginning in 2024, unused 529 funds can also be rolled over into a Roth IRA for the beneficiary (up to $35,000 lifetime), making 529 plans far more flexible than they used to be.
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