Cloud cost savings calculator
Enter your monthly cloud spend and a rough split. The estimate applies three common measures in sequence so the same euro is never counted twice.
Estimate
- Estimated saving per month
- €4,116
- Estimated saving per year
- €49,395
- Share of current spend
- 20.6%
- From idle cleanup
- €1,400
- From rightsizing
- €1,590
- From commitments
- €1,126
How we calculate
- Idle cleanup: spend × idle share × share of idle that can actually be removed.
- Rightsizing: the compute spend left after cleanup × the rightsizing saving.
- Commitments: the rightsized compute × the share you commit × the commitment discount.
- Storage, network and licence costs outside compute are only touched by idle cleanup.
Assumptions
| Assumption | Value | Why this value | Source |
|---|---|---|---|
| Idle resources that can actually be removed | 70 % of idle | Some idle-looking resources turn out to be backups or standby capacity that has to stay. | TOC project experience (conservative pick) |
| Saving from rightsizing compute | 15 % of compute | Set at the low end. Provider rightsizing tools often suggest more, but not every recommendation is safe to apply. | Provider rightsizing recommendations (AWS Compute Optimizer, Azure Advisor), discountedAWS Compute OptimizerAzure Advisor cost recommendations |
| Discount for a one-year commitment | 25 % off on-demand | One-year, no-upfront commitments. Published discounts are usually higher; three-year terms save more but lock you in. | AWS Savings Plans, Azure Reservations and Google committed use discount pricing pagesAWS Compute Savings Plans pricingAzure Reserved VM Instances pricingGoogle Cloud committed use discounts |
Want to check these numbers against your setup?
Bring the estimate to a call. We will go through the assumptions with your real figures.


