How does Kinesis on-demand pricing work?

On-demand mode charges per stream hour and per GB of data ingested/retrieved with automatic scaling. You do not manage shards. Pricing is approximately 2-3x more than provisioned for steady-state workloads but eliminates capacity planning and over-provisioning for variable traffic.

What is enhanced fan-out?

Enhanced fan-out provides dedicated 2 MB/s throughput per shard per consumer, compared to standard consumers that share 2 MB/s per shard across all consumers. It enables parallel consumption without throughput contention. Enhanced fan-out adds per-consumer-shard-hour and per-GB retrieval charges.

How many shards do I need?

Each shard supports 1 MB/s (1,000 records/s) ingestion and 2 MB/s retrieval. Divide your peak throughput by these limits to determine shard count. For example, 5 MB/s ingestion needs at least 5 shards. On-demand mode handles this automatically.

Kinesis Data Streams Cost Estimator

ServerlessAWS

Estimate Kinesis costs for on-demand and provisioned capacity with enhanced fan-out, retention tiers, and mode comparison.

Input

Capacity Mode

Ingest Data (GB/day)

Standard ConsumersEnhanced Fan-Out Consumers

Data Retention: 24 hours (default)

1 day7 days30 days365 days

Retrieval Data (GB/day)

About This Tool

The Kinesis Data Streams Cost Estimator calculates monthly costs for both on-demand and provisioned capacity modes. It factors in shard hours, PUT payload units, enhanced fan-out consumer fees, extended data retention beyond 24 hours, and long-term retention pricing. The tool compares both modes side-by-side to help you choose the most cost-effective option.

When to Use This Tool

•Estimating monthly Kinesis costs for a real-time data ingestion pipeline based on expected throughput.
•Comparing on-demand vs. provisioned capacity pricing for predictable vs. variable streaming workloads.
•Calculating the cost impact of enabling enhanced fan-out for multiple consumer applications.
•Modeling retention cost differences between standard (24h), extended (7 days), and long-term (365 days) retention.

Frequently Asked Questions

How does Kinesis on-demand pricing work?: On-demand mode charges per stream hour and per GB of data ingested/retrieved with automatic scaling. You do not manage shards. Pricing is approximately 2-3x more than provisioned for steady-state workloads but eliminates capacity planning and over-provisioning for variable traffic.
What is enhanced fan-out?: Enhanced fan-out provides dedicated 2 MB/s throughput per shard per consumer, compared to standard consumers that share 2 MB/s per shard across all consumers. It enables parallel consumption without throughput contention. Enhanced fan-out adds per-consumer-shard-hour and per-GB retrieval charges.
How many shards do I need?: Each shard supports 1 MB/s (1,000 records/s) ingestion and 2 MB/s retrieval. Divide your peak throughput by these limits to determine shard count. For example, 5 MB/s ingestion needs at least 5 shards. On-demand mode handles this automatically.

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Disclaimer: This tool runs entirely in your browser. No data is sent to our servers. Always verify outputs before using them in production. AWS, Azure, and GCP are trademarks of their respective owners.