EC2 instance rightsizing savings

Compute monthly + 3-year savings from rightsizing under-utilized EC2 instances vs reserved instances vs savings plans.

Current instances

On-demand $/instance/month

Avg CPU utilization %

Below 30% = rightsize down. Above 70% = rightsize up.Downsizing target % savings

Rightsizing typically yields 30-60% per instance.Savings Plan discount %

1-yr No-Upfront SP: ~30%. 3-yr All-Upfront: ~50%.

Annual savings

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