AWS EFS Pricing Calculator
Model Regional vs One Zone storage, IA access, and throughput before EFS becomes a recurring line item.
- No signup
- Instant results
- ~2 min
Rates reviewed
Read the full breakdown — Amazon EFS Pricing covers billing dimensions, traps, and a 30-day cleanup plan.
Storage deployment
us-east-1 list rates, pricing as of 2026-06-17. Data transfer and backup costs are excluded. Source: AWS public pricing .
IA storage is $0.016/GB-mo; access reads billed separately in step 2.
Who This Tool Is For
Platform teams, data engineers, and FinOps leads sizing shared NFS file systems for ECS, EKS, Lambda, or batch workloads.
Why We Built This Tool
EFS bills combine storage class, IA access patterns, and optional throughput modes — easy to underestimate when only Standard Regional rates are quoted.
What Problem It Solves
- Deployment choice. Compare Regional multi-AZ vs One Zone storage on the same capacity.
- IA economics. Model Infrequent Access storage plus read access charges together.
- Throughput modes. See when provisioned or elastic throughput adds meaningful cost.
Pair with our cloud cost optimization service or the S3 pricing calculator for object storage comparison.
Frequently Asked Questions
Where do these EFS prices come from?
Rates are AWS published us-east-1 list prices (AWS EFS pricing), pricing as of 2026-06-17.
EFS vs EBS vs S3 — when does EFS win?
EFS fits shared POSIX file access across many compute instances (ECS, EKS, Lambda with EFS mount). EBS is block storage per instance; S3 is object storage. Use this calculator when multiple workloads need the same file system.
What is One Zone storage?
One Zone EFS stores data in a single Availability Zone at roughly half the Regional rate. You trade multi-AZ durability for cost — suitable for dev/test or workloads with independent DR copies.
Does this include data transfer or backup?
No. Cross-AZ/cross-region data transfer, AWS Backup, and EFS Replication charges are excluded.
How accurate is this vs the AWS Pricing Calculator?
For storage and IA access at list rates, estimates should be within ~$1 of AWS Pricing Calculator for the same inputs. Throughput modeling is simplified.
When should I use provisioned throughput?
Provisioned throughput guarantees MiB/s regardless of file system size — useful for large sequential workloads. Bursting scales with stored GB and is free beyond storage cost.