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DocumentDB Pricing Calculator - On-Demand & Serverless

Estimate Amazon DocumentDB costs for provisioned on-demand instances and DocumentDB Serverless with Standard vs I/O-Optimized storage, backup, I/O, and CPU credit pricing.

Reference prices

Example monthly cost in US East (N. Virginia)

A single db.r5.large instance on standard storage running all month with 500 GB of storage, 200 GB of additional backup storage beyond the included allocation and 100 million I/O requests, priced by this calculator at AWS list prices.

Estimated total: $276.41 per month

BreakdownMonthly cost
Compute$202.21
↳ 730 hrs x db.r5.large @ $0.277/instance-hr$202.21
Database storage$50.00
↳ 500 GB @ $0.10/GB-month$50.00
Additional backup storage$4.20
↳ 200 GB-month @ $0.021/GB-month$4.20
Standard I/O requests$20.00
↳ 100M requests @ $0.20/1M$20.00

Priced on 15 Oct 2026 from CloudBurn's AWS price data. Prices in USD, excluding tax.

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Frequently Asked Questions

When should I choose Standard vs I/O-Optimized storage?
Standard has lower storage and compute rates but bills separately for I/O requests. I/O-Optimized has higher base rates and includes I/O, which is often better for I/O-heavy or more predictable workloads.
How is backup storage modeled in this calculator?
DocumentDB includes backup storage up to 100% of your live database storage. This calculator expects only the additional backup storage above that free allocation so you can model the incremental backup charge directly.
What does average DCU usage mean for DocumentDB Serverless?
DocumentDB Serverless bills in DocumentDB Capacity Units (DCUs). Enter the average DCU usage sustained across your billed hours to estimate monthly serverless compute spend.