Calculator Inputs
Use the fields below to model tiered egress pricing, transfer adders, and savings assumptions.
Example Data Table
Use this sample structure when comparing providers, regions, or hosting scenarios.
| Scenario | Monthly Egress (GB) | Offload % | Regional Multiplier | Inter-Region GB | Monthly Total |
|---|---|---|---|---|---|
| US App Cluster | 12,000 | 20% | 1.00 | 800 | $824.78 |
| EU Streaming Edge | 24,500 | 35% | 1.15 | 1,400 | $1,496.53 |
| APAC Analytics Sync | 9,200 | 10% | 1.25 | 2,100 | $1,037.12 |
Formula Used
Effective Egress = Monthly Egress × (1 − CDN Offload %)
Billable Egress = max(Effective Egress − Free Allowance, 0)
Tiered Egress Cost = (Tier 1 GB × Tier 1 Rate + Tier 2 GB × Tier 2 Rate + Tier 3 GB × Tier 3 Rate) × Regional Multiplier
Net Egress Cost = Tiered Egress Cost − Commitment Discount
Monthly Total = Net Egress Cost + Cross-Zone Cost + Inter-Region Cost + Request Fees + Support Surcharge
Projected Annual Total = Sum of monthly total across twelve months using the monthly growth assumption.
This structure lets you separate direct internet egress from internal transfer adders, then project how a growing workload changes annual cloud networking spend.
How to Use This Calculator
- Enter your monthly outbound traffic in gigabytes.
- Set your free allowance and the size of each pricing tier.
- Add the corresponding rates for each egress tier.
- Apply CDN offload, regional pricing, and any commitment discount.
- Include cross-zone traffic, inter-region traffic, and request-related fees.
- Submit the form to view the total cost summary above the form, then export the result as CSV or PDF.
Why This Calculator Helps
Cloud bandwidth pricing often looks simple until regions, replication, support plans, and tier breaks start compounding. This calculator makes those components visible in one place so finance, infrastructure, and operations teams can compare scenarios quickly.
You can use it for budgeting, contract reviews, migration planning, or post-deployment cost checks. It works well when you need to explain why a traffic increase raises spend faster than expected.
Frequently Asked Questions
1. What is data egress cost?
Data egress cost is the charge for moving data out of a cloud platform to users, the public internet, or another region. Providers often bill it by usage tier.
2. Why include CDN offload?
A CDN can serve cached content closer to users, reducing the data your origin platform must send. That lowers billable outbound traffic and often improves application performance.
3. What does the regional multiplier represent?
Some providers price bandwidth differently by geography. The multiplier lets you scale standard rates upward or downward for a region without rewriting every tier rate manually.
4. Are cross-zone and inter-region transfers separate?
Yes. Cross-zone traffic is usually movement between availability zones, while inter-region traffic moves data between regions. Many providers charge these differently from direct public egress.
5. How is the annual projection calculated?
The calculator compounds the monthly total over twelve months using your growth input. If growth is zero, the annual total is simply twelve times the monthly total.
6. Should request fees be included?
Yes, when your architecture adds API calls, object requests, or processing fees. Including them gives a fuller picture of traffic-related costs beyond raw gigabytes.
7. What is a commitment discount?
A commitment discount reflects negotiated pricing or reserved usage agreements. It reduces the direct egress charge before support uplift and other adders are applied.
8. Can I compare multiple providers with it?
Yes. Run one scenario per provider or region, keep the same traffic profile, and compare the exported results. That highlights which pricing structure is most favorable.