Cloud Cost & FinOps
Cloud Data Transfer Cost Calculator
Enter daily inter-AZ and inter-region data transfer volumes to compute monthly data transfer costs, often the most overlooked line item in cloud bills.
No data is transmitted — everything runs locallyTool
About this tool
Cloud Data Transfer Cost Calculator
The Cloud Data Transfer Cost Calculator computes monthly inter-AZ and inter-region transfer costs across AWS, GCP, and Azure, including Transit Gateway and VPC peering differentials.
• Calculate monthly inter-AZ transfer cost for a multi-AZ microservice architecture
• Estimate inter-region replication cost for active-passive DR setup
• Model Transit Gateway vs VPC peering cost for given transfer volume
• Quantify the cost of chatty microservices across AZ boundaries
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FAQ
What does this tool tell you?
The Cloud Data Transfer Cost Calculator computes monthly inter-AZ and inter-region transfer costs across AWS, GCP, and Azure, including Transit Gateway and VPC peering differentials.
What affects the result most?
Intra-region transfer between AZs: $0.01/GB each direction (AWS) — often overlooked. Inter-region transfer: $0.02–$0.09/GB depending on source and destination region pair. VPC peering vs Transit Gateway cost: TGW adds $0.02/GB processing fee.
How should I use the result?
The calculation is deterministic — the same inputs always produce the same output — so the most useful workflow is to vary one input at a time and see which factor moves the result most. That tells you where to focus your attention before committing to a decision.
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