EBS Volume Cost Calculator
Split a gp3 volume bill into capacity, IOPS above the free 3,000 and throughput above the free 125 MB/s.
About EBS Volume Cost Calculator
gp3 decouples capacity from performance: you pay for every GiB provisioned whether or not it holds data, then pay separately only for IOPS above 3,000 and throughput above 125 MB/s. Because the baseline is free at any volume size, gp3 removes the gp2 trick of over-sizing a volume just to buy IOPS. Every rate here is a user-supplied list price to confirm on the AWS EBS pricing page for your region. It shows whether a volume's bill is driven by capacity or by performance, which decides whether the fix is shrinking the disk, lowering the provisioned IOPS, or moving to io2 or st1.
Formula
EBS Volume Cost
cost = GiB x capacity rate + max(0, IOPS − 3000) x IOPS rate + max(0, MB/s − 125) x throughput rate.
- 125
- MB/s included with gp3 before provisioning charges
- 3000
- IOPS included with gp3 before provisioning charges
- GiB
- Provisioned volume size
Worked example
With the default values below, EBS Volume Cost Calculator returns Monthly Volume Cost of $80.00. Change any input above and every figure here is recalculated in your browser.
Inputs used
- Volume sizeminimum 1 GiB
- 500 GiB
- Provisioned IOPSminimum 0 IOPS
- 8,000 IOPS
- Provisioned throughputminimum 0 MB/s
- 500 MB/s
- IOPS included in the base priceminimum 0 IOPS
- 3,000 IOPS
- Throughput included in the base priceminimum 0 MB/s
- 125 MB/s
- Capacity priceminimum 0 USD per GiB-month
- 0.08 USD per GiB-month
- Provisioned IOPS priceminimum 0 USD per IOPS-month
- 0.005 USD per IOPS-month
- Provisioned throughput priceminimum 0 USD per MB/s-month
- 0.04 USD per MB/s-month
Results
- Monthly Volume Cost
- $80.00
- Capacity Cost
- $40.00
- Extra IOPS Cost
- $25.00
- Extra Throughput Cost
- $15.00
- Effective Cost per GiB
- 0.1600 USD per GiB-month
- Provisioned Capacity
- 500 GiB
Step by step
- 1Values used
- 2EBS Volume Cost
- 3Monthly Volume Cost= 80.00
- 4Capacity Cost= 40.00
- 5Extra IOPS Cost= 25.00
- 6Extra Throughput Cost= 15.00
- 7Effective Cost per GiB= 0.1600 USD per GiB-month
- 8Provisioned Capacity= 536,870,912,000
Assumptions and limits
- The result is derived only from the 8 inputs listed above. Anything not among them is not part of the calculation.
- In particular, this calculator does not take inflation, tax or compounding frequency into account.
- Figures are rounded for display to 4 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.
Frequently Asked Questions
How is EBS Volume Cost calculated?
cost = GiB x capacity rate + max(0, IOPS − 3000) x IOPS rate + max(0, MB/s − 125) x throughput rate. gp3 decouples capacity from performance: you pay for every GiB provisioned whether or not it holds data, then pay separately only for IOPS above 3,000 and throughput above 125 MB/s. Because the baseline is free at any volume size, gp3 removes the gp2 trick of over-sizing a volume just to buy IOPS. Every rate here is a user-supplied list price to confirm on the AWS EBS pricing page for your region.
Why does EBS Volume Cost matter?
It shows whether a volume's bill is driven by capacity or by performance, which decides whether the fix is shrinking the disk, lowering the provisioned IOPS, or moving to io2 or st1.
What values do I need to enter?
This calculator takes 8 inputs: Volume size, Provisioned IOPS, Provisioned throughput, IOPS included in the base price, Throughput included in the base price, Capacity price, Provisioned IOPS price, Provisioned throughput price. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.
Am I billed for a volume that is detached?
Yes. EBS bills provisioned capacity and provisioned performance for as long as the volume exists, regardless of whether an instance is attached or running. Unattached volumes are one of the most common sources of silent storage spend.