What programs or websites allow me to make pie graphs?

[Phatferd]

Preferably real easy to operate. I have office, but have never done a pie chart. Anyone know an easy way to do it? Have to do it for class.

[PlayingWithFire]

Power Point

[davidmarver]

In Word if you click to insert spreadsheet, you can modify it (once the numbers are entered) to become a pie chart.

[da1chipo]

Excel. Piece of cake. Enter your data and select it, data, go to Chart > Chart Type > Pie, and screw around with the options.