GET and PUT requests can outgrow storage for small-object workloads.
For millions of small objects, S3 request fees rival storage — and writes cost 12× reads. Front hot objects with a CDN. Model the storage side on the object storage cost calculator and cache savings on the CDN cost calculator.
Free S3 request cost calculator — monthly GET and PUT requests to the per-operation cost most people forget to budget.
Yes. On top of per-GB storage and egress, S3 bills per request: roughly $0.0004 per 1,000 GET requests and $0.005 per 1,000 PUT/POST/LIST requests. For apps handling millions of small objects, request fees can exceed the storage cost.
Put a CDN in front to absorb repeat GETs, batch small objects into larger files where possible, avoid unnecessary LIST operations, and cache. Since PUT costs ~12× a GET, reducing write frequency (buffer then flush) helps write-heavy workloads most.
Cost at different volumes:
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