Is it wise to borrow from a 401K to pay off a credit card?

DO NOT borrow from the 401k. Most 401ks have a hefty loan fee (mine is $200) and you're just moving debt from one column from another. That's NOT the same thing as paying it off. You also run the risk of running up the card again before you've paid off the 401k loan.

If you aren't living paycheck to paycheck then just pay extra on the card. If you pay $300/month you'll have it knocked out in about 11 months.

If you need to use 401k money to pay it off you're far better off simply reducing the amount you put into your 401k (temporarily) and diverting it to the credit card.

If push comes to shove you could take on a little extra work here and there (babysitting? dog walking? house sitting? holiday temp job?) and reduce your expenses a bit (alcohol, espresso, clothes, subscription services like Netflix or expensive cell phone plans, brown-bagging your lunches). You'd be amazed how $20 here and $30 there really adds up.

Good luck!

No, work a second job or cut expenses. Borrowing on your 401K is dangerous if even allowed. If you lose your job you owe the loan, if you don't pay they charge penalty and taxes you might not even have the money to pay. Pay the minimum payment plus $300 a month and you will be done with this debt in less than 10 months.

No, just pay it off. 3k isn't really very much. It MIGHT make sense to obtain another c/c, from a different issuer, and do a balance transfer. You'd have to compare/balance the upfront fee and the expected future interest charges against what you pay currently.

only if you promise yourself to never carry a balance on that card again/pay off balance in full every month