DynamoDB Costs
Estimate monthly AWS DynamoDB costs by capacity mode, throughput, and storage.
Capacity Mode
Requests (millions / month)
Provisioned Capacity Units
Average Item Size
Reads are billed in 4 KB units, writes in 1 KB units.
Each RCU handles one 4 KB read/s, each WCU handles one 1 KB write/s. Adjust your RCU/WCU to account for item size.
Storage
Options
Cost Breakdown
Reads
Writes
Storage
Total
Free tier applied: 25 GB storage and 25 RCU / 25 WCU (provisioned) deducted.