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dev.infra-ec2-pricing Calculator
Calculates EC2 instance cost comparison between On-Demand, Reserved, and Spot pricing models for a given workload in a cloud infrastructure and DevOps context. Reserved Instances (1-year no upfront) save 40% vs On-Demand — Spot Instances save 70–90% but can be interrupted with 2-minute notice.
Inputs
Od
Reference formula or conversion factor shown for context.
Ri
Reference formula or conversion factor shown for context.
Hrs
Reference formula or conversion factor shown for context.
Results
on-demand/mo
Estimated monthly cost at on-demand (pay-as-you-go) pricing — no commitment required but higher per-unit cost.
reserved/mo
Estimated monthly cost under a reserved instance commitment — lower unit cost in exchange for a 1- or 3-year commitment.
monthly saving
Sample size or count used in the calculation.
break-even
The price, quantity, or time at which total revenue equals total cost — neither profit nor loss.