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.
Calculations run locally in your browserTool
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.
โข Calculate monthly inter-AZ transfer cost for a multi-AZ microservice architecture
โข Estimate inter-region replication cost for active-passive DR setup
โข Model Transit Gateway vs VPC peering cost for given transfer volume
โข 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) โ often overlooked. Inter-region transfer: $0.02โ$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 โ the same inputs always produce the same output โ 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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