On-Demand vs Provisioned, quantified
AWS DynamoDB Pricing Calculator
Compare On-Demand vs provisioned capacity, storage, PITR, Streams, and Global Tables — with honest free-tier rules. us-east-1 list pricing.
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- Instant results
- ~2 min
Rates reviewed
Read the full breakdown — Amazon DynamoDB Pricing covers billing dimensions, traps, and a 30-day cleanup plan.
Capacity mode
us-east-1list rates, pricing as of 2026-10-17. Source: AWS public pricing.
On-Demand vs provisioned WCU/RCU — us-east-1 (October 2026).
Relational alternative?DynamoDB vs RDS comparison →
Usage & storage
Free tier: 25 GB storage (both modes); 25 WCU / 25 RCU for provisioned only — enable via toggle below.
$0.02 per 100,000 stream read request units.
Your Estimated DynamoDB Cost
Capacity mode · storage · PITR
Total Monthly Cost
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On-Demand vs provisioned comparison below.
On-Demand vs Provisioned (same inputs)
DynamoDB Cost Tips
- On-Demand for spiky traffic: Pay per request when utilization is unpredictable.
- Provisioned for steady heat: Flat workloads with known RCU/WCU save at scale.
- GSIs multiply cost: Each GSI consumes its own capacity — model separately in production.
- PITR tradeoff: Worth it for prod tables; skip for ephemeral caches.
Want this applied to your real account?
FactualMinds reviews DynamoDB the way we do in engagements — choosing on-demand vs provisioned with auto-scaling, pruning over-provisioned GSIs, and adding TTL to expire cold items. Typical AWS cost reviews cut spend 20–40%.
Talk to FinOps Experts →Who This Tool Is For
Serverless developers, platform engineers, and architects picking between DynamoDB and RDS. FinOps teams reconciling spiky NoSQL bills.
Why We Built This Tool
DynamoDB pricing splits across capacity mode, storage, and optional PITR — On-Demand vs provisioned is the first fork with a large cost swing. We quantified both paths with October 2026 us-east-1 rates.
What Problem It Solves
- Mode comparison. See both pricing models with the same workload inputs.
- PITR toggle. Add continuous backup cost explicitly.
- Free tier modeling. 25 GB always; WCU/RCU only in provisioned mode.
- Streams & Global Tables. Optional CDC and multi-region write multipliers.
- Storage line item. $0.25/GB-month separated from capacity.
Read DynamoDB vs RDS or talk to our FinOps team.
Frequently Asked Questions
Where do these prices come from?
DynamoDB us-east-1 list prices as of October 2026: On-Demand $0.625/M writes and $0.125/M reads; provisioned $0.00065/WCU-hr and $0.00013/RCU-hr; storage $0.25/GB; PITR $0.20/GB.
Are GSIs included?
No — enter aggregate capacity for your table only. Each global secondary index bills its own reads/writes or WCU/RCU.
What is a read/write unit?
Standard strongly consistent read = 1 RCU for 4 KB; write = 1 WCU for 1 KB. Larger items consume multiple units.
DAX or streams?
Streams read request units are modeled via the Streams slider ($0.02 per 100k). DAX cluster hours and export to S3 are not included. Global Tables uses a 2× write multiplier for a two-region setup.
Does free tier apply to On-Demand?
The always-free 25 GB storage credit applies in both modes when the toggle is on. The 25 WCU / 25 RCU always-free allowance applies to provisioned mode only — On-Demand has no equivalent always-free request units in this model.
When is On-Demand cheaper?
Typically at low or spiky traffic. Steady high QPS often shifts savings to provisioned or auto-scaling policies.
How accurate is this estimate?
Linear rate-card math for your inputs. Confirm with AWS Pricing Calculator for transactions, tiers, and data transfer.
