Farmboy,
to calculate your networth this is what you do (your monthly expenses have nothing to do with your networth calculation):
add the value of all your assets (401K, IRAs, brokerage accounts, savings accounts, checking accounts, gold under your mattress, real estate etc...). In your case, you have a 401K, and some savings, so your assets total 200K + 25K = 225K.
Then add the value of all your debts (how much do you owe on credit cards, auto loans, mortgages, student loans, personal loans etc...). In your case you have 12K in student debt, probably no credit card debt, no mortgage and no car loan, so your debt adds up to 12K.
oh, okay. I understand now. Thanks for the great reply!
Your networth is equal to the value of your assets minus the value of your debts so it is: 225K - 12K = 213K.
As far as our networth goes, the 420K comprises roughly 90K in home equity and 330K in "savings" (Emergency fund, retirement and non-retirement accounts). And the 130K income is gross, not net.