If you are a developer using SQL Server, you’ve probably heard of Azure SQL Database and you’ve probably been thinking about migrating your on-premise or VM-based SQL Server database(s) to Azure SQL Database. If so, you’ve probably asked yourself, “which service tier and performance level should I use and how many database throughput units (DTUs) am I using now?” This calculator will help you determine the number of DTUs for your existing SQL Server database(s) as well as a recommendation of the minimum performance level and service tier that you need before you migrate to Azure SQL Database.
Refer to this site: https://dtucalculator.azurewebsites.net/