would it help to pay off $8000 faster if I loan $8000 from prosper.com with 9.81%? I have a excellent credit history (750+)?

How much is that 9.81% monthly compare with 21.99% monthly interest?

Thanks!

Wow, that's outrageous interest.

Obviously 9.81% is a lot better than 21.99% - depending on the size of your payment that you are making, is several hundred dollars a year, maybe closer to $1000 if you aren't paying off much principal each month. Of course, the trick is finding someone to lend you that money at 9.81%.

Have you tried calling your credit card company, telling them you are considering transferring your balance but don't really want the aggravation and paperwork to do that, that you'd rather stay with them if they can lower the interest rate substantially? Give it a try, and be sure to point out your credit score when you are talking to them. You mght be pleasantly surprised.

Good luck.

getting a loan to pay a credit card is a bad thing to do no matter which way you look at it.

There are loan calculators online (try the search engine).

If you can do that, that would save you a great deal of money. However if your credit score it 750, which lenders consider excellent, then you should look into getting a credit card that has 12 or 18 months interest free on all balance transfers. Then you will have some time to knock down your debt interest free.