Would a 100k salary in 30 years time be any good, or is it equivalent to an average salary today?

Such a rate of increase works out at about 4.5% per year.

Over the past 30 years in USA, the rate of inflation has averaged 2.9% per year.

This means that the $100k in 30 years time is roughly equivalent to $43000 today.

I would say that does represent a fairly good rate of increase that will reflect your accumulating skills, knowledge of the business or the industry.

Your salary is meant to rise for two reasons at least:

first, to show your seniority in the business or the industry;

second, to reward you for skill-development and loyalty to the business and maybe to reflect your value among competing firms [to tie you in to the company.]

So, overall, it's a rate of salary-increase that should more than match inflation, based on the past 30 years. You should feel as financially secure then as you would today with a salary of $43000.

It really depends on the inflation rate. The inflation rate is not fixed so it's not predictable how much purchasing power your 100k in 30 years will have. My cousin was a CPA accountant in the San Francisco area in 2000 and her annual salary was $50,000 USD, its not much today but back then it was like getting paid $78,000 USD a year according to inflation calculators. The best way to beat inflation is to invest in real assets such as buying a home instead of renting one and having a diverse stock portfolio.

30 years to earn 100K? You'd be in the poor house son. Oh sorry, I finished reading your question. I don't know, I would think maybe a bit more than that, depends on your career but look how much getting your degree cost you? You should hope to make around 35K to start I would think

its not much today but back then it was like getting paid $78,000 USD a year according to inflation calculators.