21.5 cm. Built strong for heavy, messy meals. Soak proof shield. Microwaveable. Cut resistant. 10X stronger (than the leading 9 inch plain white uncoated paper plate). Dixie Ultra plates and bowls will handle your heavy, messy meals so you can focus on great conversation and not the dishes. Dixie - Be more here. Connect with Dixie: www.dixie.com. Like us on Facebook: DixieProducts. Follow us on Twitter: (at)DixieProduct. Follow us on Instagram: (at)dixie. Visit us on Pinterest: pinterest.com/dixieproducts. If you have any questions or comments, please call toll-free 1-800-2TellGP. Made in the USA.