College Cost Planner
Comprehensive college planning calculator with cost estimates, 529 savings projections, financial aid estimation, and student loan planning. Plan for one or multiple children.
About this calculator
This calculator runs four related college-planning modes off one shared cost projection: college type and years of college set a base annual cost that's compounded forward by an inflation rate for however many years remain until enrollment. The comprehensive mode (the default) then layers financial aid, 529 savings growth, and an estimated loan gap on top of that base cost. Number of children scales total cost directly and by a wide margin -- planning for a second or third child multiplies the total cost by that many, since each child is assumed to need the full projected cost independently. Household income, GPA, and SAT score only affect the standalone Cost Estimate mode's financial-aid and merit-scholarship figures -- they have no effect on the comprehensive mode's total college cost, since comprehensive mode uses a simpler aid estimate keyed only to household income bracket.
529 savings growth in comprehensive and savings-plan modes responds to monthly contribution, expected return, and years until college, compounding as a standard future-value annuity. What this does not account for: the aid estimates use flat historical income-bracket figures (Pell Grant and need-based averages) rather than a real FAFSA/EFC calculation, which can differ substantially by state, dependency status, and asset levels not captured here. The college cost figures and loan interest rates built into this calculator are also a planning reference rather than a live feed of current published numbers -- both shift from year to year, so double-check them against a current source (College Board's Trends in College Pricing, studentaid.gov) before making a real funding decision.
Step 1 of 4
How to Use This Calculator
- Select a Planning Mode — 'Comprehensive Plan' combines all four tools at once.
- Choose your College Type (Public In-State, Private Non-Profit, etc.) and enter Years of College and Years Until College.
- For savings planning, enter your Current 529 Balance and Monthly Contribution; adjust Expected Return to match your fund allocation.
- Enter Household Income to get an estimated financial aid amount, and add your Expected GPA and SAT Score for merit scholarship estimates.
- For loan projections, enter the Loan Amount, Loan Type, and Repayment Plan to see Monthly Payment and Total Interest.
- Review the funding breakdown charts and Year-by-Year table to compare 529 savings, aid, and loan needs side by side.
What each input means
- Planning Mode
- Calculation mode to use.
- Number of Children
- Number of dependent children.
- College Cost Inflation
- Expected annual inflation rate.
- Current 529 Balance
- Amount currently saved.
- Monthly Contribution
- Amount contributed each month.
- Loan Amount
- Total amount borrowed.
How this is calculated
Formula
Future Cost = Annual Cost × (1 + Inflation)^Years | FV Savings = PV × (1+r)^n + PMT × ((1+r)^n − 1) / rEngine last updated . Checked against 4 independently-derived tests — how we verify calculators. Built by Paul Gunder, a software engineer, not a licensed financial, medical, or legal professional.
Frequently Asked Questions
Why does household income not change the Comprehensive Plan's total college cost?
Household income and GPA/SAT-based merit scholarship estimates only feed into the standalone Cost Estimate mode's aid calculation -- Comprehensive mode uses a separate, simpler aid figure keyed only to household income bracket for the funding-gap calculation. Total college cost itself is driven entirely by college type, years of college, number of children, inflation rate, and years until college, not by income or academic figures.
How much does adding another child increase total college cost?
Total college cost scales close to proportionally with number of children, since each additional child is assumed to need the full projected per-child cost independently -- planning for two children roughly doubles the total versus one, and across its full 1-6 child range this is one of the largest single levers on the total figure.
How is the 529 savings projection calculated?
Projected savings combines the future value of your current 529 balance, compounded at the expected return rate over the years until college, plus the future value of your ongoing monthly contributions as a standard compounding annuity. Both monthly contribution and expected return move the projection directly -- a higher contribution or a higher assumed return both grow projected savings, though a higher assumed return carries more real-world uncertainty.
Are the financial aid estimates based on a real FAFSA calculation?
No -- aid estimates use flat historical averages for Pell Grant and need-based aid tied to income brackets, not an actual FAFSA or Expected Family Contribution calculation, which also weighs assets, dependency status, family size, and state-specific factors. Treat the aid figures here as a rough planning reference, not a substitute for running a real FAFSA estimate closer to application time.
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