AWS Step Functions Pricing Calculator
Compare Standard state transitions vs Express request + duration pricing before high-volume orchestration surprises your FinOps review.
- No signup
- Instant results
- ~2 min
Rates reviewed
Workflow type
us-east-1list rates, pricing as of 2026-06-25. Lambda, DynamoDB, and other integrated service charges excluded. Source: AWS public pricing.
Who This Tool Is For
Backend engineers and architects orchestrating multi-step workflows, sagas, or high-volume event processing with Step Functions.
Why We Built This Tool
Standard workflows bill per state transition — a 5-state workflow at 100k executions is 500k transitions. Express shifts to per-request + duration, which wins at scale for short runs.
What Problem It Solves
- Workflow type mismatch. Standard for durable, auditable flows; Express for sub-5-minute high-volume pipelines.
- State count inflation. Pass, Choice, and Wait states all count as transitions in Standard workflows.
- Distributed Map cost. Child workflows multiply transitions — Express children are often 10–40× cheaper at scale.
Explore serverless development or compare compute with the Lambda vs Container calculator.
Frequently Asked Questions
Where do these Step Functions prices come from?
AWS published us-east-1 list prices (AWS Step Functions pricing), pricing as of 2026-06-25.
What counts as a state transition?
Each time a state in your workflow completes, it counts as one transition — including Pass, Choice, Wait, and Task states, not just Lambda invocations.
Does Standard have a free tier?
Yes — the first 4,000 state transitions per month are free (perpetual free tier, not a 12-month trial).
When is Express cheaper than Standard?
Express typically wins for high-volume, short-duration workflows (under 5 minutes) where per-transition Standard pricing adds up. A 5-state workflow at 100k runs costs ~$12.50 Standard vs ~$0.31 Express (2s, 64 MB).
How is Express memory billed?
Express bills duration in GB-seconds with memory rounded up to the next 64 MB increment based on state machine definition size and execution data — not a configurable setting like Lambda memory.
Does this include Lambda or downstream service costs?
No. This calculator covers Step Functions orchestration charges only. Lambda, DynamoDB, SNS, and other integrated services bill separately.