Which AWS tool will meet these requirements?

Explanations:

AWS Budgets helps track and manage costs and usage against budgets, but it does not provide detailed cost estimates for different workloads during migration.

AWS Cost Explorer provides detailed insights into historical AWS costs and usage but is not specifically focused on estimating costs for different workloads during migration.

AWS Pricing Calculator is the tool designed to help estimate costs for different workloads by providing pricing estimates based on selected services and configurations, which is ideal for migration planning.

AWS Cost and Usage Report provides detailed data on actual usage and costs but does not help with upfront cost estimation for migration planning.