AWS Cost Calculator
The CloudDrove AWS Cost Optimization Calculator analyzes your AWS spending and estimates where you can cut costs — across compute, storage, reservations, and more. Upload your Cost Explorer export, answer six quick questions, and receive a personalized savings breakdown by email.
Live tool: calculator.clouddrove.com
What it checks
The calculator evaluates your infrastructure against six optimization dimensions:
| Area | What it looks for |
|---|---|
| Spot Instances | Workloads that could move from On-Demand to Spot pricing |
| Reserved Instances / Savings Plans | Steady-state compute that would benefit from 1- or 3-year commitments |
| S3 Storage Archiving | Objects in Standard that qualify for Infrequent Access or Glacier tiers |
| Idle / Underutilized Resources | EC2 instances, RDS, load balancers, and NAT gateways with low utilization |
| Right-sizing | Oversized instance types relative to actual CPU and memory usage |
| Networking | Data transfer and NAT Gateway costs that can be reduced |
How to use it
Step 1 — Export your AWS cost data
In the AWS Console, go to Cost Management → Cost Explorer, then:
Reports → Export → CSV
Export a date range of at least 30 days. Keep the file under 1 MB.
Alternatively, use the AWS CLI:
aws ce get-cost-and-usage \
--time-period Start=2024-01-01,End=2024-01-31 \
--granularity MONTHLY \
--metrics "BlendedCost" \
--output json > cost-export.json
Step 2 — Open the calculator
Go to calculator.clouddrove.com.
Step 3 — Answer the six questions
The form asks about your current optimization practices (e.g., "Are you using Spot Instances?"). These answers calibrate the savings model to your actual situation.
Step 4 — Upload your CSV and submit
Upload the Cost Explorer export, enter your email, and click Submit. The calculator processes your data and sends the savings breakdown directly to your inbox.
What you receive
The emailed report includes:
- Total estimated savings across all categories
- Per-category breakdown showing which areas have the most opportunity
- Prioritised recommendations — highest-ROI actions listed first
For a deeper analysis with implementation guidance, you can request a full assessment via the contact option in the tool.
Security
- The calculator processes cost and usage data only — no AWS credentials, account IDs, or resource identifiers are required
- Uploaded files are not stored after processing
- File size is capped at 1 MB to limit exposure
Use cases
- Quick pre-audit check before an AWS cost review
- Identifying low-hanging fruit before committing to a Reserved Instance purchase
- Benchmarking spend efficiency when onboarding a new AWS account
- Building a business case for a right-sizing or Spot migration project