We host a lot of meetups (for SEO and Social Media), and we always provide pizza. Well, I was doing the math over and over and over again every time we placed an order. So I decided to make it into a simple WordPress plugin. By installing the plugin, you too can have a pizza calculator anywhere on your website by simply adding the shortcode [ pizza_calc ] to any post or page. The rest is magic. Here it is for your usage.

# of RSVPS:
Attendance Percentage (use a decimal):
# of Slices / Person:
# of Slices / Pizza:
# of Pizzas to Order: