Cloud Storage Cost Compare
Compare estimated storage-only monthly and yearly cost across AWS S3 Standard, Backblaze B2, Cloudflare R2, Google Cloud Storage Standard, and Azure Blob Hot. Enter GB or TB — rates come from our published seed data (not a live bill or quote). An editorial Strengths matrix sits below the cost results so cheapest is not the only frame.
Your inputs
Enter capacity to compare storage-only monthly cost across AWS S3 Standard, Backblaze B2, Cloudflare R2, Google Cloud Storage Standard, and Azure Blob Hot. Rates come from our published seed data — not editable here.
Defaults last set: 2026-07 · 1 TB = 1000 GB
Comparison
Cheapest is Backblaze B2 at about $0.70 / month
Backblaze B2$0.70
Cloudflare R2 Standard$1.50
Azure Blob Storage Hot$1.80
Google Cloud Storage Standard$2.00
AWS S3 Standard$2.30
| Provider | $/GB-mo | Monthly | Yearly | Docs |
|---|---|---|---|---|
| Backblaze B2 | $0.00695 | $0.70 | $8.34 | Pricing |
| Cloudflare R2 Standard | $0.015 | $1.50 | $18.00 | Pricing |
| Azure Blob Storage Hot | $0.018 | $1.80 | $21.60 | Pricing |
| Google Cloud Storage Standard | $0.02 | $2.00 | $24.00 | Pricing |
| AWS S3 Standard | $0.023 | $2.30 | $27.60 | Pricing |
Estimates only — not a quote, invoice, or offer to sell. Storage capacity cost only (flat $/GB-month from our seed data for the listed class/region). Does not include egress, API/operations fees, free-tier credits, minimums, volume discounts, or other storage classes. Currency is USD. Rates are not a live bill: Backblaze B2, Cloudflare R2, Google Cloud Storage, and Azure Blob Hot are curated seeds; AWS S3 Standard may be refreshed from a public pricing feed and can still differ from your account. Always confirm current pricing with each provider. Not financial, legal, or purchasing advice.
Docs → Pricing opens each provider’s official pricing page in a new tab. Always confirm current rates there before purchasing.
“Cheapest” means the lowest estimated storage-only monthly cost among the providers shown here for the capacity you entered — not an overall market ranking. Strengths ratings below are editorial, not SLAs.
AWS, Amazon Web Services, Amazon S3, Backblaze, B2, Cloudflare, R2, Google Cloud, Google, Microsoft, Azure, and Blob names and logos are trademarks of their respective owners and are used only to identify those services. ConvertRubix is not affiliated with, endorsed by, or sponsored by Amazon Web Services, Inc., Backblaze, Inc., Cloudflare, Inc., Google LLC, or Microsoft Corporation.
1 TB = 1000 GB in this tool (decimal GB).
Strengths (editorial)
Editorial comparison for orientation only — not SLAs, uptime guarantees, or performance benchmarks. Hyperscaler cores often look similar; differences show up most in ecosystem fit and ops model. Confirm details on each provider’s official documentation.
| Provider | Reliability | Availability | Scalability | Read/write performance | Ecosystem fit |
|---|---|---|---|---|---|
AWS S3 Standard Deep AWS stack, regions, and compliance needs | Best | Best | Best | Strong | Best |
Backblaze B2 Lowest storage $/GB; backups and cost-sensitive bulk storage | Strong | Strong | Strong | Good | Good |
Cloudflare R2 Standard Workers/CDN apps; zero egress to Cloudflare’s network | Strong | Strong | Strong | Strong | Strong |
Google Cloud Storage Standard GCP, BigQuery, and Google data/analytics stacks | Best | Best | Best | Strong | Strong |
Azure Blob Storage Hot Microsoft / Azure AD and enterprise Azure workloads | Best | Strong | Best | Strong | Best |
AWS S3 Standard
Deep AWS stack, regions, and compliance needs
- Reliability
- Best
- Availability
- Best
- Scalability
- Best
- Read/write performance
- Strong
- Ecosystem fit
- Best
Backblaze B2
Lowest storage $/GB; backups and cost-sensitive bulk storage
- Reliability
- Strong
- Availability
- Strong
- Scalability
- Strong
- Read/write performance
- Good
- Ecosystem fit
- Good
Cloudflare R2 Standard
Workers/CDN apps; zero egress to Cloudflare’s network
- Reliability
- Strong
- Availability
- Strong
- Scalability
- Strong
- Read/write performance
- Strong
- Ecosystem fit
- Strong
Google Cloud Storage Standard
GCP, BigQuery, and Google data/analytics stacks
- Reliability
- Best
- Availability
- Best
- Scalability
- Best
- Read/write performance
- Strong
- Ecosystem fit
- Strong
Azure Blob Storage Hot
Microsoft / Azure AD and enterprise Azure workloads
- Reliability
- Best
- Availability
- Strong
- Scalability
- Best
- Read/write performance
- Strong
- Ecosystem fit
- Best
How we calculate
Capacity in GB = value as entered, or × 1000 when unit is TB (decimal GB in this tool). For each provider, monthly cost = GB × that provider’s flat $/GB-month from our rates file for the listed storage class and region. Yearly cost = monthly × 12. Bar widths scale to the most expensive monthly cost in the set. “Cheapest” is among these providers only, for storage capacity cost only.
Estimates only — not a quote, invoice, or offer. Does not include egress, API/operations fees, free-tier credits, minimums, volume discounts, or other storage classes. Currency is USD. Rates are comparison seeds, not a live bill, and can differ from what you are charged. Always verify on each provider’s official pricing pages. Results are for comparison only — not financial, legal, or purchasing advice.
When to choose what?
Each of these services is strong in different situations. Storage $/GB is only one factor — egress, API usage, regions, compliance, and how well the product fits your stack often matter more than the estimate above. Use the Strengths matrix for editorial fit ratings alongside this guide.
- Backblaze B2
- Often the lowest storage $/GB in this comparison. A strong fit for backups, archives, and cost-sensitive bulk object storage when your egress and API patterns work well with B2.
- Cloudflare R2
- Designed for zero egress fees to Cloudflare’s network. A strong fit when your app already runs on Workers or the Cloudflare CDN, or you want object storage close to edge compute.
- AWS S3 Standard
- Deepest AWS ecosystem (IAM, Lambda, Athena, and related services). A strong fit when you need specific regions or compliance options, or when integration with AWS matters more than the lowest storage-only rate.
- Google Cloud Storage Standard
- Strong fit for GCP-native data and analytics workflows (BigQuery, data pipelines) and teams already standardized on Google Cloud.
- Azure Blob Storage Hot
- Strong fit for Microsoft / Azure AD enterprise stacks and apps already running on Azure, when Hot-tier object storage is the right access pattern.
The ★ cheapest row is storage capacity cost only for the capacity you entered — choose based on your stack, traffic, and ops needs, not that number alone.
Trademarks
AWS, Amazon Web Services, Amazon S3, Backblaze, B2, Cloudflare, R2, Google Cloud, Google, Microsoft, Azure, and Blob names and logos are trademarks of their respective owners and are used on this page only to identify those third-party services for comparison. ConvertRubix is an independent tool and is not affiliated with, endorsed by, or sponsored by Amazon Web Services, Inc., Backblaze, Inc., Cloudflare, Inc., Google LLC, or Microsoft Corporation. All product names, logos, and brands are property of their respective owners.
Related tools
Frequently asked questions
- Are these live cloud provider prices?
- No. Rates come from our published seed data for comparison only — not a live billing API and not a quote or invoice. AWS S3 Standard may be refreshed from a public pricing feed (typically reflecting a specific class/region such as S3 Standard in us-east-1); Backblaze B2, Cloudflare R2, Google Cloud Storage Standard, and Azure Blob Hot stay curated until public feeds are wired. Your account price can differ. Always confirm current pricing on each provider’s official pricing page.
- How is the comparison calculated?
- Capacity is normalized to GB (1 TB = 1000 GB in this tool). For each provider, monthly cost = capacity in GB × that provider’s flat $/GB-month from our rates file. Yearly cost = monthly × 12. The cheapest row(s) are those with the lowest estimated storage-only monthly cost among the providers shown — not an overall market ranking. Volume tiers, free credits, and minimums are not modeled.
- Does this include egress or API fees?
- No. This tool estimates storage capacity cost only. Egress, API requests, operations fees, free-tier credits, and other charges are out of scope and can change total cost substantially.
- What do Good, Strong, and Best mean?
- Those labels appear in the Strengths (editorial) matrix. They are curated orientation ratings for reliability, availability, scalability, read/write performance, and ecosystem fit — not SLAs, uptime guarantees, or measured benchmarks. They are separate from the ★ cheapest cost row.
- Can I share my comparison?
- Yes. Use the Copy link button to share a URL with your capacity and unit pre-filled. Provider rates are loaded from the site’s rates data, not from the URL.
- Which provider should I pick?
- It depends on more than storage $/GB. Backblaze B2 often wins on storage-only cost here and suits cost-sensitive backups. Cloudflare R2 fits Workers/CDN with zero egress to Cloudflare. AWS S3, Google Cloud Storage, and Azure Blob Hot fit deep hyperscaler ecosystems. Use the cost table for capacity cost, the Strengths matrix for editorial fit, then weigh egress, APIs, and your stack — see When to choose what?
- Where can I verify official pricing?
- Use the Pricing link in the Docs column for each provider. Those open the provider’s official pricing documentation in a new tab. Our seed rates are estimates for comparison only and may differ from what you are charged.
- Who owns the provider names and logos?
- AWS, Amazon Web Services, Amazon S3, Backblaze, B2, Cloudflare, R2, Google Cloud, Google, Microsoft, Azure, and Blob names and logos are trademarks of their respective owners and are used only to identify those services. ConvertRubix is not affiliated with, endorsed by, or sponsored by Amazon Web Services, Inc., Backblaze, Inc., Cloudflare, Inc., Google LLC, or Microsoft Corporation.