Answer: Pricing Calculator, TCO Tool

The Pricing Calculator and TCO Tool are essential for estimating GCP usage costs. The Pricing Calculator offers a straightforward method to estimate your GCP expenses by detailing the services you plan to use, including the number of Compute Engine instances and persistent disks. The TCO Tool helps in understanding the total cost of ownership when migrating to GCP. These tools are invaluable for planning and budgeting your cloud resources effectively. For more details, visit [Pricing Calculator](https://cloud.google.com/products/calculator) and [TCO Assessment](https://inthecloud.withgoogle.com/tco-assessment-19/form.html).

Author: LeetQuiz Editorial Team