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Database Storage Capacity Planner
Plan your database storage requirements and forecast growth over 1, 3, and 5 years — including backups, replicas, indexes, and transaction logs.
Enter Your Details
Total current size of your database data files
Average monthly growth as a percentage (e.g. 5 = 5% per month)
How long data must be retained before archival or deletion
Total number of database instances to plan for
Average size of a single row in bytes (used for index estimation)
Storage Costs by Provider & Tier
| Storage Tier | AWS (per GB/mo) | Azure (per GB/mo) | GCP (per GB/mo) | On-Premise* |
|---|---|---|---|---|
| SSD (gp3 / Premium) | £0.07 | £0.08 | £0.07 | £0.04 |
| Provisioned IOPS SSD | £0.10 | £0.12 | £0.11 | £0.06 |
| HDD (st1 / Standard) | £0.04 | £0.04 | £0.03 | £0.02 |
| Archive / Cold | £0.01 | £0.01 | £0.01 | £0.01 |
| Backup Storage | £0.02 | £0.02 | £0.02 | £0.02 |
| Cross-Region Replica | £0.09 | £0.10 | £0.09 | N/A |
*On-premise costs are amortised over 3 years including hardware and power. All prices are per GB per month (excl. VAT), typical UK pricing as of 2025. Volume discounts apply at scale. Talk to our database team
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