Cloud Storage & Egress Cost Matrix: AWS S3 vs Cloudflare R2 vs Backblaze B2
Quantitative comparison of object storage per-GB pricing, Class A/B API request fees, and bandwidth egress charges at 10TB to 500TB scale. (50 TB Monthly Egress on AWS S3: $4,300 / month | 50 TB Egress on Cloudflare R2: $0.00 (Zer)
Reviewed by: Alexei Volkov • Principal Systems & Cloud Infrastructure Architect
Methodology: Verified Formula
Key Quantitative Takeaway
50 TB Monthly Egress on AWS S3: $4,300 / month | 50 TB Egress on Cloudflare R2: $0.00 (Zero Egress) | Annual FinOps Savings: $51,600 / year saved
Presets:
Monthly Data Transfer Volume
1.58 TB/mo
Hyperscaler Egress Bill
$137.81/mo
Cloudflare R2 / Pages Egress Cost
$0.00 / mo (Saves $1,654/yr)
Live Sensitivity Scale (Monthly Requests / Pageviews)
Output Comparison
0.75× Conservative
1.19 TB/mo
1.00× Active
1.58 TB/mo
1.50× Aggressive
2.37 TB/mo
Average sustained throughput: 5.12 Mbps.
In-Depth Analysis — Cloud Storage & Egress Cost Matrix: AWS S3 vs Cl
Quantitative comparison of object storage per-GB pricing, Class A/B API request fees, and bandwidth egress charges at 10TB to 500TB scale.
Use the interactive Cloud Server Egress Bandwidth Cost & TB Transfer Calculator above to model custom production workloads and export CSV benchmark reports.
Need to run custom scenarios from scratch? Open the master Cloud Server Egress Bandwidth Cost & TB Transfer Calculator →
Scenario Comparison & Benchmark Table (Cloud Bandwidth Cost)
Compare how scaling Monthly Requests / Pageviews affects your output (click any row to load those values into the calculator above):
| Monthly Requests / Pageviews | Monthly Data Transfer Volume | Hyperscaler Egress Bill | Cloudflare R2 / Pages Egress Cost |
|---|---|---|---|
| 1,000,000 | 811 GB/mo | $68.90/mo | $0.00 / mo (Saves $826.84/yr) |
| 1,500,000 | 1.19 TB/mo | $103.35/mo | $0.00 / mo (Saves $1,240/yr) |
| 2,000,000 (Baseline) | 1.58 TB/mo | $137.81/mo | $0.00 / mo (Saves $1,654/yr) |
| 2,500,000 | 1.98 TB/mo | $172.26/mo | $0.00 / mo (Saves $2,067/yr) |
| 3,000,000 | 2.37 TB/mo | $206.71/mo | $0.00 / mo (Saves $2,481/yr) |
| 4,000,000 | 3.17 TB/mo | $275.61/mo | $0.00 / mo (Saves $3,307/yr) |
Mathematical Formula & Step-by-Step Guide
Primary mathematical equation used by this model:
Monthly GB = (Requests × AvgKB) / (1024 × 1024); Egress Cost = Monthly GB × $/GB
- Enter your Monthly Requests / Pageviews and Average Payload / Asset Size (KB) (or load Lower (1,200,000), Baseline (2,000,000), Higher (3,000,000) with one click) to establish your baseline scenario.
- Adjust Cloud Egress Cost ($ per GB - AWS ~0.09) to see how the primary result and visual breakdown bar respond in real time.
- Scan the 6-tier Cloud Bandwidth Cost Reference Benchmark Table below or click Download CSV / Print PDF to save your analysis.
Primary Standards & References: IETF RFC 8259 (JSON), RFC 4648 (Base64), RFC 9562 (UUIDv4), IEEE 802.3 / CIDR RFC 4632, POSIX.1-2017 File Permissions & Official 2026 LLM Tokenizer Pricing
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Frequently Asked Questions — Cloud Bandwidth Cost
What is the benchmark calculation for AWS S3 vs Cloudflare R2 Bandwidth & Data Egress Cost Comparison (2026)?
Serving 1,000,000 monthly requests with a 3,000 KB (3 MB) media payload (~2.86 TB/month) costs $263.67/month ($3,164/year) in AWS S3 egress fees vs $0.00 egress on Cloudflare R2. You can also open our dedicated guide (AWS S3 vs Cloudflare R2 Egress Cost) or click the preset buttons above to test this exact configuration interactively.
How do I optimize Monthly Requests / Pageviews and Average Payload / Asset Size (KB) for better Cloud Bandwidth Cost performance?
At the default benchmark (Monthly Requests / Pageviews: 2,000,000, Average Payload / Asset Size (KB): 850), balancing both inputs prevents bottlenecks and wasted budget. Test the built-in presets above to compare standard industry tiers.
What technical specification backs the Cloud Bandwidth Cost calculation?
This tool implements Monthly GB = (Requests × AvgKB) / (1024 × 1024); Egress Cost = Monthly GB × $/GB in accordance with IETF RFC 8259 (JSON), RFC 4648 (Base64), RFC 9562 (UUIDv4), IEEE 802.3 / CIDR RFC 4632, POSIX.1-2017 File Permissions & Official 2026 LLM Tokenizer Pricing and is audited by Alexei Volkov • Principal Systems & Cloud Infrastructure Architect. You can export the full benchmark table as CSV or share a pre-filled URL parameter link with your team.