How to compare two degrees on financial value

Why the brochures don’t help

University marketing materials sell two things well: prestige and starting salary numbers. They don’t help you compare two degrees against each other, because the relevant comparison isn’t is this a good degree? — it’s is this degree better for me than that other degree?

A useful comparison considers four levers in parallel: total cost, study duration, starting salary, and salary growth trajectory. Each one matters; ignoring any of them produces the wrong answer.

Cost — the obvious lever, used wrongly

A four-year degree at $20,000/year and a two-year degree at $15,000/year cost the same on the sticker — $80,000 versus $30,000 — but the headline cost isn’t the whole picture.

The four-year course locks in two more years of foregone wages. If you’d otherwise have been earning $40,000/year, that’s $80,000 of additional opportunity cost stacked on top of the tuition difference. The two-year degree’s true cost advantage isn’t $50,000 — it’s closer to $130,000.

This effect is why comparing degrees on tuition alone systematically misleads. The longer course always carries hidden cost.

Duration — the lever most people underweight

Every extra year of study delays the start of your earning career by a full year. That delay carries three compounding penalties: the year of foregone salary, the year of compound growth on that salary, and the year of seniority you don’t accumulate.

That said, longer courses sometimes lead to higher starting salaries — particularly for medicine, law, and specialist engineering. The financial question isn’t whether they pay more on graduation. It’s whether the post-graduation salary advantage catches up to the head start the shorter course had.

Starting salary and salary growth — the lever most people overweight

The starting salary number is the most quoted statistic in degree marketing. It’s also the least informative on its own, for two reasons.

First, starting salaries vary enormously between graduates of the same degree. The top quartile of any degree earns 30–50% more than the median. The bottom quartile earns far less. A $75,000 average starting salary doesn’t mean you’ll earn $75,000.

Second, salary growth rate matters more than starting salary across a full career. A $50,000 starting salary growing at 4% a year overtakes a $60,000 starting salary growing at 2% within fifteen years and pulls steadily ahead from there. Lifetime earnings care about the compounding rate, not the starting point.

The break-even year

When two degrees cost differently and pay differently, there’s usually a year where the cumulative net earnings of the more expensive degree overtakes the cheaper one. That year is the break-even point — the moment when the higher-paying career has earned back the cost of the longer or pricier course.

If break-even falls within the first ten years of work, the more expensive degree is usually a clear winner. If it falls between ten and twenty years, the comparison depends on personal preferences — risk appetite, geographic flexibility, debt tolerance. If break-even never arrives within a normal career horizon, the cheaper degree is the more honest choice.

A framework, not a recommendation

This comparison is a modelling tool. It uses your assumptions about each path’s salary, growth, and duration. Real outcomes depend on factors no calculator captures — labour market conditions, your performance, your geography, and luck.

Use the framework to eliminate options that don’t make sense, not to select the option that looks best on a single number.

Next steps

Compare two real degree paths side by side. Plug in tuition, duration, expected starting salary, and a realistic salary growth assumption for each.

Use the degree A vs degree B calculator to find the break-even year, milestone earnings at 10 and 20 years, and the lifetime earnings gap. For deeper analysis on a single path, the education ROI calculator handles the cost-versus-return question for one degree at a time.