How to Estimate Infrastructure Costs Before Building

Estimating infrastructure cost before you build is the difference between a budget that holds and a surprise bill that derails a project. A rough but honest model beats a precise but optimistic one.

The reliable approach is to model compute, storage, and bandwidth at a realistic scale, then add the fees most people forget. Round up, because underestimating is the norm.

• Model compute by vCPU hours and instance type
• Estimate storage by capacity and access frequency
• Bandwidth, especially egress, is the common miss
• Add support, backups, and monitoring to the total

Build the estimate with real numbers, not ideals, and revisit it as assumptions change.