See how many credits you'll likely lose, how many extra semesters that adds, and what it costs in tuition and living expenses.
The core question isn't how many credits you have — it's how many of them still count once you switch. Any credit that doesn't apply to your new major is a credit you effectively have to redo, on top of everything you still needed to take anyway. This calculator converts that lost-credit count into extra semesters (based on your normal course load) and multiplies by your real tuition and living costs, so you get an actual dollar figure instead of the vague "$18,000 to $70,000" ranges most articles quote.
Switch early — say, before the end of your sophomore year — and most of what you've completed is general education and electives that apply to almost any major, so your transfer percentage is high and your extra cost is often small or zero. Switch in your junior or senior year, especially into an unrelated field, and a much larger share of your credits were major-specific courses that don't count anywhere else, which is when the cost climbs fast. There is no universal answer — it depends entirely on how far in you are and how different the two fields are.
How do I know what percentage of my credits will transfer to my new major? Ask your academic advisor for a degree audit against the new major's requirements. As a rough estimate, general education and elective credits usually carry over fully, while major-specific coursework often doesn't count toward a very different new major at all.
Does switching majors always add an extra semester? No — if you switch early and the new major shares a lot of general education requirements with your old one, you may stay on your original timeline. Enter your own numbers above to see your specific case.
Is it cheaper to switch majors or transfer schools instead? Switching majors at your current school is usually cheaper than transferring, since transferring risks losing an even larger share of credits plus new application fees. Use our Transfer Credit Loss Calculator to compare.
Should I finish my current major and add the new field as a second degree instead? This can sometimes cost less time overall than switching outright, especially if you're already more than halfway through your original major. It typically means one to two extra years rather than starting over.
Double Major vs. Minor vs. Switching Majors — which fits your situation.
Transfer Schools vs. Switch Majors — which costs less.
Do Major + Minor Combinations Actually Matter? — real examples, honestly examined.
Minor Value Calculator — the smaller-scale version of this same math.
Transfer Credit Loss Calculator — the school-transfer version.
Degree ROI Calculator — see the lifetime payoff of your (new) degree.
Average Starting Salary by Major — compare earning potential before you commit.