About the College ROI Calculator
This college ROI calculator answers the question “is college worth it?” in numbers. Enter what the degree will cost you out of pocket, any student loans and their rate, the salary you expect with the degree and the salary you could earn without it. The calculator adds loan interest and — if you choose — the earnings you give up while studying, then measures how many years the after-tax salary premium takes to repay that investment.
It is meant for high-school students choosing a major or school, adults weighing a return to college, and parents deciding how much to borrow. Try the same school with different majors, or compare a cheaper in-state option with a pricier private one: the payback period and net present value make very different choices directly comparable.
The model keeps things deliberately simple: both salaries grow at the same rate, the earnings premium is taxed at one average rate, and the investment is counted at graduation. Living costs are left out because you would pay rent and food with or without a degree. Real outcomes vary widely by field, school and individual, so use realistic salary figures for your intended career, such as the College Scorecard median earnings for your program.
With the default inputs, the payback period after graduation is 9.8 years. Change any value above to recalculate instantly.
How to use the college roi calculator
- 1Enter the total out-of-pocket cost of the degree after grants and scholarships.
- 2Enter the salary you expect with the degree and what you could earn without it.
- 3Add any student loans, their interest rate and repayment term.
- 4Choose whether to count the pay you give up while studying.
- 5Read the payback period, NPV and lifetime ROI, and compare majors or schools.
Formula and method
The investment is the out-of-pocket cost of the degree, plus the total interest on any student loans (from the standard amortization formula over the repayment term), plus — optionally — the after-tax salary you would have earned in the years spent studying. Living costs are not included because you would pay them anyway.
Each working year after graduation, the degree adds an after-tax earnings premium: the difference between the two salaries, grown at the same annual rate, times one minus your average tax rate. The payback period is when the running total of premiums first covers the investment, interpolated within the year. Net present value discounts each year’s premium back to graduation at your chosen rate and subtracts the investment; ROI compares the undiscounted lifetime premium with the investment.
- S_deg
- Starting salary with the degree
- S_no
- Salary without the degree
- g
- Annual salary growth
- tax
- Average tax rate on the extra earnings
Worked examples
$80,000 degree, $62,000 vs $38,000 salary
A $30,000 loan at 6.5% over 10 years costs about $10,877 in interest, and four years of $38,000 after 22% tax is $118,560 of forgone pay, so the investment is about $209,437. The $24,000 salary gap is worth $18,720 a year after tax and grows 3% a year, repaying the investment in about 9.8 years — and adding about $1.41 million over a 40-year career.
Ignoring forgone earnings, no loans
Counting only the $80,000 cost, the $18,720 premium (growing 3% a year) covers it in just over four years. This is the view many families take when the student would not have worked full time anyway.
Small salary premium never pays back
A degree that raises pay by only $2,000 a year adds $1,560 after tax — $46,800 over 30 years, far short of the $150,000 cost plus forgone earnings, so it never pays back financially.
Frequently asked questions
How do you calculate the ROI of a college degree?+
Compare the extra after-tax earnings the degree produces over your career with what it costs — tuition and fees, loan interest and the wages you give up while studying. The payback period is how long the extra earnings take to cover that cost; the ROI is the lifetime gain relative to the cost.
What is a good payback period for a degree?+
There is no official benchmark, but a degree that pays for itself within about 10 years of graduation leaves decades of extra earnings afterwards. Payback beyond 20 years suggests the cost or debt is high relative to the expected salary.
Should I include lost wages in college ROI?+
Economists usually do, because time in school is time not working full time. If the student would otherwise study, travel or work only part time, switching the forgone earnings off gives a more realistic picture.
Where can I find expected salaries for my major?+
The U.S. Department of Education’s College Scorecard publishes median earnings by school and field of study, and the Bureau of Labor Statistics Occupational Outlook Handbook lists median pay by occupation.
Why does the NPV differ from the lifetime premium?+
NPV discounts future earnings because a dollar earned in 30 years is worth less than a dollar today. The lifetime premium simply adds up all future extra earnings without discounting, and NPV also subtracts the investment, so the two can differ by a lot — and NPV can be negative even when the lifetime premium is large.
Results are estimates for educational purposes and are not financial advice. Rates, fees and terms vary — confirm with your lender or a licensed advisor before making decisions.