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API download planning
A workload transfers 4,800 GB out of a cloud provider at 0.09 per GB.
Inputs
- Transferred GB: 4,800
- Rate per GB: 0.09
Steps
- Egress cost = 4,800 x 0.09 = 432
Result
- Estimated monthly egress cost is 432.
Egress Cost Calculator
Estimate data egress cost from transferred gigabytes and your provider's per-GB egress rate.
Egress Cost Calculator
Result
Calculating the sample result.
Why it matters
Direct provider egress costs can become material for APIs, downloads, and multi-cloud architectures.
When to use
- Forecasting origin transfer cost
- Comparing cloud providers
- Evaluating whether caching or compression changes are worth prioritizing
Inputs & Outputs
Inputs
- Transferred GB is the amount of data leaving the provider.
- Rate per GB is the egress price applied to that traffic volume.
Outputs
- Estimated egress cost shows the monthly transfer bill.
- Annualized cost shows the potential yearly exposure at the same usage level.
Egress billing method
Multiply transferred gigabytes by the egress rate charged by your provider.
Egress cost = transferred GB x rate per GB
Worked example
Edge cases & caveats
- Free tiers, regional differences, and tiered pricing can change the actual bill.
- This does not account for request charges or inter-zone transfer.
Frequently Asked Questions
Why do CDN and egress costs both matter?
Because you may pay CDN delivery costs and still pay origin egress on cache misses or direct downloads.
Should internal traffic be included?
Only if your provider bills that traffic as egress under the pricing model you are evaluating.
Keep going
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