# VPC Concepts Generated on 18 Mar 2026 A Virtual Private Cloud (VPC) is a private network interface for collections of DigitalOcean resources. VPC networks are inaccessible from the public internet and other VPC networks, and traffic on them doesn’t count against bandwidth usage. You can link VPC networks to each other using VPC peering connections. [How to Plan Your Custom VPC Network](https://docs.digitalocean.com/products/networking/vpc/concepts/plan-your-network/index.html.md): Determine the right size for your custom VPC network and learn how to calculate its IP range. [Use VPC Networks to Secure Your Servers and Other Best Practices](https://docs.digitalocean.com/products/networking/vpc/concepts/best-practices/index.html.md): Develop your infrastructure securely by isolating groups of resources using a VPC and implementing other best security practices.