Prices of admission depended on the kind of theater. Outdoor theaters like the Globe charged one penny to get in and another penny if you wanted to sit in the balconies. By the early seventeenth century, the price of admission went up to about sixpence. Admission to the private indoor theaters, which catered to a more affluent audience, generally began at a basic sixpence to gain entry to the galleries. Fancy gallants who wanted to be seen, however, could sit on the stage for two shillings (24 pence), and a box could be had for half-a-crown (30 pence).
It’s a bit trickier to work out what those costs mean in today’s money: was a penny to get in cheap or expensive? Maybe the easiest way to think about this question is that it cost about 4 pence to provide food and drink for a grown man for one day.