S3 Storage Cost Calculator
Estimate Amazon S3 storage, request and transfer cost.
With the default inputs, $31.50/month — 500 GB stored. Enter your own numbers below to recompute instantly; the full step-by-step math is shown under the worked example.
Results update automatically as you type.
- • Standard storage class estimate.
- Storage
- $11.50
- Requests
- $2.00
- Transfer out
- $18.00
- Total / month
- $31.50
Estimate the monthly cost of Amazon S3 from stored data, request volume and data transfer out. Useful for datasets, documents and media behind AI features.
How this is calculated
Monthly cost ≈ stored data (GB) × per-GB price + requests × per-request price + data transfer out (GB) × per-GB rate, assuming S3 Standard. Infrequent-access and Glacier tiers are cheaper for cold data but add retrieval cost and latency.
Is this a good result? What to do next
S3 is inexpensive for datasets, documents and media behind AI features; transfer-out and request volume are the usual surprises, not storage itself. Lifecycle policies to colder tiers cut the cost of rarely-touched data.
Typical planning ranges
- Priced on
- storage + requests + transfer out
- Standard
- assumed tier here
- Cold data
- cheaper on IA / Glacier
Ranges are typical planning figures to sanity-check your result, not authoritative benchmarks. Your numbers will vary with use case, volume, and vendor.
How to improve this number
- Move cold data to Infrequent-Access or Glacier via lifecycle rules.
- Serve through CloudFront to cut repeated transfer-out.
- Consolidate small objects to reduce request counts.
Common mistakes
- Ignoring transfer-out and request costs, not just storage.
- Keeping cold data on Standard.
When to use a different approach
For the CDN in front of S3, use the CloudFront cost calculator. For a database, use the DynamoDB cost calculator.
Worked example (defaults)
With the default inputs above, here is the result:
- • Standard storage class estimate.
- Storage
- $11.50
- Requests
- $2.00
- Transfer out
- $18.00
- Total / month
- $31.50
Sources & references
Frequently asked questions
Which storage class is this?+
It assumes S3 Standard. Infrequent-access and Glacier tiers are cheaper for cold data but add retrieval cost and latency.