Cost per Gigabytes Stored
Definition
Measures the average cost per GB stored, impacted through storage tiers and by maximizing data life-cycle management. This average cost can be categorized by specific or combination of the following FOCUS fields to gain more insights and map them to business units : Region ID, Account ID, Service Category ID, SKU ID.
Formula, as published
Cloud Storage Costs / Number of GB stored
- Data sources:
- CSP Billing Data and Cloud Console
Calculate it
Example values to start with; replace them with yours.
How to measure it
Storage cost per GB stored, across classes and tiers. A falling figure usually means data is moving to colder classes; a rising one, that requests and retrieval are growing faster than the data.
Include request and retrieval charges in the cost, or a cold class looks cheaper than it is.
FOCUS columns: EffectiveCost, ServiceCategory, ConsumedQuantity, ConsumedUnit
More Unit Economics KPIs
Definition and formula: Cost per Gigabytes Stored, FinOps KPI library, FinOps Foundation, licensed CC BY 4.0, read 16 Oct 2026. Changed: HTML removed, dashes and British spellings changed, formula split from its data sources and examples. The calculator and the notes are Finitizer’s.
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