Data Transfer Cost Calculator
Calculate tiered cloud internet egress data transfer costs across major hyperscalers, modeling tiered volume discounts and free egress allowances.
Calculated Cloud & Storage Breakdown
Tiered Cloud Egress Cost Formula
Total Egress = Tier 1 Cost + Tier 2 Cost + Tier 3 Cost + Tier 4 Cost; Billable GB = Total Outbound GB - Free Tier Allowance- Free Tier Allowance: 100 GB free internet egress per month (standard across AWS, Azure, and GCP).
- Tier 1 (Up to 10,000 GB): $0.09 per GB.
- Tier 2 (Next 40,000 GB): $0.085 per GB.
- Tier 3 (Next 100,000 GB): $0.07 per GB.
- Tier 4 (Above 150,000 GB): $0.05 per GB.
Step-by-Step Worked Example
Calculation Steps:
- Billable Egress: 15,000 - 100 = 14,900 GB
- Tier 1 Cost (First 10,000 GB): 10,000 * $0.09 = $900.00
- Tier 2 Cost (Remaining 4,900 GB): 4,900 * $0.085 = $416.50
- Total Monthly Egress Cost: $900.00 + $416.50 = $1,316.50
- Blended Effective Rate: $1,316.50 / 15,000 = $0.0878 per GB
How to Use This Calculator
- 1Enter your anticipated monthly outbound internet transfer in gigabytes (GB).
- 2Confirm the standard 100 GB free tier deduction.
- 3Adjust bracket rates if you have negotiated custom enterprise discount agreements.
- 4Review your cost breakdown across brackets and blended unit rate.
Assumptions & Limitations
- Calculated based on standard internet egress to public internet destinations.
- Intra-region cross-AZ data transfer is priced separately.
Frequently Asked Questions
Why are cloud egress fees so controversial?
Cloud providers allow free ingress (uploading data into the cloud is $0.00), but charge high rates ($0.08 to $0.09/GB) to transfer data out to users or other clouds, creating financial lock-in.
How do you eliminate cloud egress fees?
Cloudflare Workers and R2 Object Storage feature zero egress fees. Alternatively, placing Cloudflare CDN in front of an AWS S3 bucket can cache static assets and cut origin egress fees by up to 90%.
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