Cloud Storage & Egress Cost Comparison Estimator
Compare monthly storage, API Class A/B request operations, and data egress transfer charges across AWS S3 Standard, Cloudflare R2, Google Cloud Storage, and Bunny.net Storage.
Object Storage Matrix
Compare storage rates, Class A/B request fees, and 11 9s durability in the Cloud Storage Benchmark Table ↗.
Calculation Formulas & Models
Every metric on FoxyData is deterministic, transparent, and auditable. Below are the algebraic definition and equivalent spreadsheet formula.
Total Storage Cost = (Stored_GB × Storage_Price_per_GB) + (Class_A_Req / 1000 × Class_A_Rate) + (Class_B_Req / 10000 × Class_B_Rate) + (Egress_GB × Egress_Price_per_GB)
Evaluated client-side in floating-point arithmetic with strict zero-division and boundary guards.
= (GB_stored * P_store) + (Req_A / 1000 * P_reqA) + (Req_B / 10000 * P_reqB) + (GB_egress * P_egress)
Drop-in formula for financial models, cost forecasting spreadsheets, and ERP analysis.
Recommended Servers & Business Tools to Cut This Cost
Stop overpaying hyperscalers and legacy banks. Switch to these vetted affordable server hosts and lean business tools to keep more of your revenue.
Cherry Servers Bare Metal
Bypass $0.09/GB AWS S3 egress penalties with dedicated storage and compute servers bundling up to 100TB+ of free monthly outbound traffic.
UltaHost Unmetered VPS
Host high-traffic media, downloads, and S3-compatible MinIO storage on NVMe VPS/dedicated nodes with flat-rate unmetered transfer.
Database Mart Dedicated Storage
Run high-IOPS SQL databases, Windows RDP servers, and backup storage vaults with predictable flat monthly billing and zero egress charges.
Cloudways + Cloudflare Enterprise
Shield your origin servers and slash bandwidth bills with integrated Cloudflare Enterprise full-page caching and image optimization.
FTC & Affiliate Disclosure: FoxyData may earn a referral commission when you provision servers or business tools through our verified partner links at no additional cost to you.
Frequently Asked Questions
Empirical engineering and financial explanations based on contractual rate sheets and production benchmarks.
Why does AWS S3 data egress often exceed 70% of total cloud storage invoices?
Hyperscalers charge nominal amounts for data at rest (e.g. $0.023/GB on S3 Standard), but impose steep charges for data outbound to the Internet ($0.09/GB for the first 10TB, scaling down slowly). For media apps, AI dataset serving, or downloads, outbound egress fees rapidly outpace storage at rest by an order of magnitude.
How does Cloudflare R2 provide zero egress fees?
Cloudflare R2 is built on Cloudflare's global edge network. Because Cloudflare peers directly with hundreds of internet service providers and transit networks globally, they absorb outbound data transit costs and do not bill customers for egress bandwidth, charging solely for storage ($0.015/GB-month) and Class A/B API operations.
What is the distinction between Class A and Class B API operations?
Class A operations mutate or list state (e.g. PutObject, CopyObject, ListObjects) and carry a higher per-request cost (typically $0.05 per 1,000 requests on S3). Class B operations read state (e.g. GetObject, HeadObject) and are billed at lower rates (typically $0.004 per 10,000 requests). High-frequency small-file read/write workloads can incur significant API costs independent of byte volume.