Azure SQL Database Cost Calculator

UK South pricing · DTU vs vCore · Elastic Pool · Reserved Instances · Savings Plan

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databasePurchase Model

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Rough conversion: 100 DTUs ≈ 1 vCore (General Purpose). The DTU model bundles compute, storage, and IO — you can't apply Azure Hybrid Benefit or Reserved Instance discounts. If you have an EA or SQL Server licences, vCore is almost always cheaper.

memoryvCore Configuration

Service Tier

Compute Tier

vCores

Storage (GB)

Azure Hybrid BenefitI have SQL Server licences with Software Assurance or SQL subscription (~30–50% compute saving)

Commitment Discount

No commitment (PAYG)

Reserved Instance 1-year (~33% saving)Savings Plan 1-year (~35% saving)

Reserved Instance 3-year (~55% saving)

layersElastic Pool

Elastic Pool enabledMultiple databases sharing a resource pool — cost-effective when average utilisation is below ~50%

backupBackup Storage

Backup Redundancy

Extra backup storage (GB)

LRS backup equal to 100% of database size is included free. GRS/ZRS/GZRS backups are charged from the first GB.

Monthly estimate (PAYG)UK South · GBP

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Related guides

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Azure SQL Database Pricing Guide UK

DTU vs vCore explained, Elastic Pool break-even, AHB, Reserved Instances, and the March 2026 Savings Plan

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