Configuration

Current Provisioned Instance

Engine

Instance Class ?

AWS Region ?

Multi-AZ ?

Enabled (2× instance cost)

Reserved Instance ?

Storage (GB) ?

500 GB

CloudWatch Metrics From RDS Console → Monitoring

Pull these from your RDS instance over the past 2–4 weeks. Use the Maximum statistic for peaks, Average for averages.

CPU Utilization — Peak ?

CPUUtilization · Max

75%

CPU Utilization — Average ?

CPUUtilization · Avg

25%

FreeableMemory — Minimum (GB) ?

FreeableMemory · Min

8 GB

DatabaseConnections — Peak ?

DatabaseConnections · Max

150

Workload Type ?

Affects CPU component of ACU estimate

Read / Write Ratio ?

Estimated Peak ACUs

— ACU

Range: —

Enter metrics above to estimate peak ACUs

Override peak ACU manually

Calculating…

Run inputs to see recommendation

Fill in your CloudWatch metrics on the left and click Calculate.

Recommendation confidence —

Provisioned/mo

—

On-Demand

Serverless v2/mo
—
ACU-Hours

Storage/mo

—

Shared cost

Est. Savings

—

vs. provisioned

Workload Intelligence

Workload Pattern

—

Derived from CPU avg/peak ratio

Est. Peak Hours/Day

—

Inferred from CPU avg/peak ratio

Working Set Size

—

Instance RAM − Min FreeableMemory

SV2 Equivalent Instance

—

Closest provisioned fit for peak ACU

ACU Sizing Recommendations

Recommended Min ACU

—

Recommended Max ACU

—

Scale Warm-Up Time

—

From min → peak ACUs

Max Connections at Min ACU

—

Monthly Cost Breakdown

Detailed Breakdown

Cost Component	Provisioned	Serverless v2	Difference
Run the calculator to see breakdown

Decision Factors