EventBridge Pricing Calculator - Event Buses, Pipes, Scheduler & More
AWS EventBridge pricing calculator to estimate costs for Event Buses, EventBridge Pipes, Scheduler, API Destinations, Event Replay, and Schema Discovery. Calculate monthly Amazon EventBridge costs.
Reference pricesExample monthly cost in US East (N. Virginia)
10 million custom events, 5 million Pipes requests and 1 million replayed events (all 1 KB payloads), 20 million scheduler invocations, and an archive with 50 GB processed and 50 GB-months stored, priced by this calculator at AWS list prices.
Estimated total: $39.15 per month
| Breakdown | Monthly cost |
|---|---|
| Event Bus - Custom Events (1KB) | $10.00 |
| ↳ 10M @ $1.00/M | $10.00 |
| EventBridge Pipes (1KB) | $2.00 |
| ↳ 5M @ $0.40/M | $2.00 |
| EventBridge Scheduler | $20.00 |
| ↳ 20M @ $1.00/M | $20.00 |
| Event Replay | $7.15 |
| ↳ Archive: 50 GB @ $0.10/GB | $5.00 |
| ↳ Storage: 50 GB @ $0.023/GB-mo | $1.15 |
| ↳ Replay: 1M @ $1.00/M | $1.00 |
Priced on 15 Oct 2026 from CloudBurn's AWS price data. Prices in USD, excluding tax.
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Frequently Asked Questions
How accurate is this EventBridge pricing calculator?
This EventBridge pricing calculator uses official AWS pricing data updated regularly from Amazon's public pricing API. It accounts for regional pricing differences, payload chunk metering, Scheduler, and Schema Discovery. For production budgets, verify final costs in the AWS Billing console since pricing occasionally changes.
Should I use Event Bus or EventBridge Pipes?
Event Bus is ideal when you need to route events to multiple targets or want decoupled architectures. EventBridge Pipes at $0.40/million is better for point-to-point integrations where you have a single source and target. It's 60% cheaper than Event Bus ($1.00/million) and includes built-in filtering, enrichment, and transformation.
How does payload size affect EventBridge costs?
Events are metered in 64 KB chunks for Event Bus, Pipes, and API Destinations. A 256 KB event counts as 4 billable events. Schema Discovery uses smaller 8 KB chunks. Keep payloads small by sending only necessary data and storing large payloads in S3 with just a reference in the event.
What does cross-account delivery cost?
Delivering events to services in the same AWS account is free. Cross-account delivery costs $0.05/million for custom and partner events, or $1.00/million for AWS management events. Same-account delivery to Lambda, SQS, SNS, Step Functions, and other targets has no additional charge beyond the event ingestion cost.
How is Event Replay (Archive) priced?
Event Replay has three cost components: Archive Processing at $0.10/GB for data archived, Storage at $0.023/GB-month for archived data, and Replayed Events charged at the custom events rate ($1.00/million). Only archive events you genuinely need to replay to control costs.
Is Schema Registry free? What about Schema Discovery?
Schema Registry is completely free. Storing and using schemas costs nothing. Schema Discovery, which automatically detects event schemas, is billed per million events. Discovery events are metered in 8 KB chunks, smaller than the 64 KB chunks used for Event Bus.
How much does it cost to trigger Lambda from EventBridge?
You pay EventBridge costs (Event Bus or Scheduler) plus Lambda execution costs. Same-account delivery to Lambda is free. You only pay for event ingestion. For scheduled tasks, EventBridge Scheduler is billed for every invocation in this calculator.
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