# VPC Concepts – DigitalOcean Documentation

> Explanations and definitions of core concepts in VPC.
- [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.