AWS Savings Plans Calculator
See exactly how much you save switching from On-Demand to Savings Plans or Reserved Instances. Most companies save 30–60% on their compute costs.
- No signup
- EC2 + RDS
- ~2 min
Read the full breakdown — Reserved Instances vs Savings Plans (2026) covers billing dimensions, traps, and a 30-day cleanup plan.
What is your current monthly AWS spend?
Enter your average monthly spend for each service. Leave at zero if not applicable.
Tip: Check your AWS Cost Explorer — filter by "Service" to see EC2-Other and RDS line items.
Who This Tool Is For
Cloud engineers and finance teams on AWS 12+ months still paying full On-Demand rates for EC2 and RDS.
Why We Built This Tool
AWS's Savings Plans page explains how they work, but not the dollar impact for your spend mix. This calculator shows On-Demand vs 1-year vs 3-year side by side before you commit.
What Problem It Solves
- Commitment anxiety. Multi-year SP feels risky without ROI in dollars.
- Finance approval. CFOs want numbers before sign-off.
- Missing context. Percentages alone do not justify the purchase.
See our Savings Plans guidance for expert coverage tuning.
Frequently Asked Questions
What discount rates does this calculator use?
1-year EC2 ~38%, 3-year EC2 ~60%, 1-year RDS ~35%, 3-year RDS ~55%. Actual rates vary by instance family and region.
Are Reserved Instances better than Savings Plans?
Savings Plans are more flexible across instance families. RIs can offer slightly higher discounts but lock instance types.
Can I use SPs with unpredictable workloads?
Yes — commit to baseline hourly spend; pay On-Demand for overage. Cover 70–80%, not 100%.