Interactive monthly cost calculator: S3 Files vs EFS (us-east-1, April 2026 pricing)

Adjust sliders to match your workload. All prices based on us-east-1, April 2026.

10 TB
20%
50M
10M
256 KB
100 GB
S3 Files / month
$0
EFS / month
$0
Monthly savings
$0
...
S3 Files cost breakdown
S3 storage (all data)-
EFS cache (hot data)-
I/O ops (32KB min bill)-
Data transfer-
Total-
EFS cost breakdown
EFS storage (all data)-
EFS cache (N/A)—
I/O ops (actual size)-
Data transfer-
Total-

Rates used: S3 Standard $0.023/GB · EFS Standard $0.30/GB · EFS I/O $0.20/GB read · S3 PUT $0.005/1000 · S3 GET $0.0004/1000 · Cross-AZ transfer $0.01/GB. S3 Files I/O metered at minimum 32 KB per operation. EFS I/O charged on actual data transferred. Prices are estimates — always validate against the AWS Pricing Calculator for your region.