How to use a college net price calculator

What a net price calculator does

You answer questions about your family's finances, and the calculator estimates the grants and scholarships the college would likely give you. It subtracts them from the full cost of a year (tuition, fees, housing, food, books and other costs) and shows what's left. The estimate is based on what similar students paid in a previous year, says the National Center for Education Statistics (NCES).

• Who has to have one: under federal law, each college that receives federal student aid funds must post one on its website. Federal guidance says it must be called a "Net Price Calculator", so search the college's site for that name, or for "cost estimator".
• What it shows: the estimated cost of attendance broken into tuition and fees, housing and food, books and other costs; the total grant aid; and the estimated net price. Colleges may show a range, but must also give a single number.
• What it can't ask you to do: a college can't make you apply or log in first. It can ask for your name or email, but it can't require them and should say they're optional.

Many colleges also offer quicker tools first. College Board's MyinTuition Quick Cost Estimator asks as few as six questions, and Carleton describes an instant estimator that asks two: family income and siblings in college. College Board says neither is as detailed as a full net price calculator. Brown says its quick estimator isn't meant for families with businesses or more complex tax situations.

What to have ready before you start

Set aside time with a parent and these papers. Dartmouth and Boston University ask you to have these on hand:

• Your parents' most recent federal income tax returns and W-2 forms.
• Savings, investments and other assets, for you and your parents.
• Your own tax return if you filed one.
• How many people live in your household and how many will be in college next year. Every calculator asks about family size and income.

Tips from the colleges' own instructions:

• Use your family's most recent year of income and assets, as Harvard asks.
• Harvard says the most common mistakes are leaving out untaxed income, such as money put into tax-deferred retirement accounts, and subtracting taxes from the income you enter.
• Divorced or separated parents: Dartmouth asks for a separate run with each parent's information and says to combine the two results. Harvard asks each parent to use the calculator for their own income and assets.
• Some calculators also ask about your GPA, test scores and activities, which College Board says can qualify you for aid. Check which colleges require the SAT or ACT for fall 2027 before you enter a score.

Why the estimate can differ from your aid offer

Federal law requires every estimate to say that it isn't a final award, isn't binding and may change, and that you must file the FAFSA. Expect a gap between the estimate and the offer for these reasons:

• Last year's numbers. Calculators use what similar students paid in a previous year, and NCES expects colleges to update them once a year. In November 2026, MIT's estimators still showed the 2025-26 year.
• Your application is checked. The offer is based on your FAFSA, and at colleges that require it the CSS Profile, plus documents the aid office may ask to verify. William & Mary says applications are reviewed and, if necessary, verified before awards are made.
• Merit scholarships may be left out. Boston University says its estimate doesn't include its merit scholarships, and William & Mary says its tools don't show merit scholarship eligibility.
• Some families get a less accurate estimate. MIT names divorced or separated parents and families who own a business. Harvard adds families with significant wealth and families whose cost of living or taxes are below average.

College Board puts it plainly: the price you pay may be higher or lower than the estimate. Once you're admitted, the aid offer is the number to use, as studentaid.gov says.

How to compare two colleges with one

1. Find each calculator. Each college's cost page here links to its own calculator. The federal College Scorecard has a "Calculate your personal net price" button on each college's page, and collegecost.ed.gov links to colleges' calculators from the addresses they report to the government.
2. Enter the same numbers at both. Use one set of tax and savings figures for every college, so a gap between the results comes from the colleges' aid, not from your typing. Save or screenshot each result.
3. Compare net price, not sticker price. Studentaid.gov's formula is the cost of attendance minus grants and scholarships. Leave loans and work-study out: they help you pay, but they don't lower the price.
4. Check the details. Note which year each estimate uses and whether it includes merit scholarships. If one college's result leaves out merit aid and the other's includes it, the gap isn't real yet.
5. Check the averages too. Each college's cost page here shows what families at five income levels paid on average, from the College Scorecard. If your estimate is far from the average for your income, re-check what you entered.

Run the calculators before you apply, so your list has at least one college whose estimate your family can afford. Then compare the real offers in the spring with how to compare aid offers.

Colleges to start with

If money is the first question, start with these lists:

• 194 colleges where families earning under $30,000 paid an average of under $10,000 a year, each with its graduation rate and a link to its calculator (free CSV).
• The cheapest colleges after aid for families earning under $30,000, and the same list for four other income bands.
• Colleges that meet 100% of financial need, by their own Common Data Set.

The 2027-28 FAFSA has been open since September 23, 2026. See each college's FAFSA deadline, and add the colleges you're comparing to the planner to keep prices and admission odds on one list.