Microsoft Fabric F64 Explained: Price and What It Unlocks

Navy Solv Systems title card reading 'Fabric F64 Explained' with a stacked capacity blocks motif.

In Short: What Microsoft Fabric F64 Is and Why It Matters

F64 is the Microsoft Fabric capacity SKU with 64 Capacity Units (CUs). It matters more than any other size because it is the threshold at which report viewers stop needing a Power BI licence: on F64 and above, users with a free Fabric licence and a Viewer role can consume Power BI content. Below it, every viewer needs Power BI Pro or Premium Per User.

At list prices checked on 25 September 2026, an always-on F64 costs about $8,410 per month pay-as-you-go in East US, or $5,003 per month on a 1-year reservation. Whether it is worth it comes down to one sum: how many people view your reports. This guide covers the price, what genuinely changes at 64 CUs, what does not, and the break-even against F32.

Fabric F64 Price in USD, GBP and ZAR

Microsoft list prices from the Azure Retail Prices API, checked 25 September 2026, for an always-on month of 730 hours:

East US - about $8,410/month pay-as-you-go, or about $5,003/month reserved
UK South - about £7,223/month pay-as-you-go, or about £4,296/month reserved
South Africa North - about R179,391/month pay-as-you-go, or about R106,658/month reserved

A 1-year reservation saves roughly 41% in each region. For context on either side, F32 reserved is about $2,501/month and F128 reserved about $10,005/month - Fabric pricing is linear per CU, so each step up doubles the bill.

Pay-as-you-go F64 can be paused, but pausing an F64 that serves free viewers is rarely practical - the whole point is that people can open reports whenever they like. Most organisations that land on F64 for viewer licensing reserve it. To model your own region, hours and billing option, use the interactive calculator in our Microsoft Fabric pricing guide, which covers every F SKU.

What F64 Unlocks

Microsoft's licensing documentation is precise on the headline point: to view Power BI content with a Microsoft Fabric free licence, "your capacity must reside on an F64 or larger SKU, and you need to have a viewer role on the workspace." On F2 to F32, each viewer needs Pro, PPU or an individual trial. The same rule applies when reports are embedded for your organisation, including in SharePoint and PowerPoint.

Three other things genuinely change at 64 CUs:

Direct Lake guardrails step up. Per Microsoft's Direct Lake overview, F32 is capped at 300 million rows per table, 40 GB model size on OneLake and 10 GB max memory. F64 allows 1,500 million rows per table, unlimited model size on disk and 25 GB max memory.
Power BI Report Server rights. Report Server is included with a Fabric reservation of F64 or higher (or via SQL Server Enterprise Edition with Software Assurance). A pay-as-you-go F64 does not carry it.
Free-licence report building from shared models. A free user with Build permission can create a report in My workspace from a shared semantic model on F64 or larger - though they cannot share it without Pro.

What F64 does not remove: anyone who creates, edits or shares Power BI content in a shared workspace still needs Pro or PPU. Our Fabric licensing guide sets out the full who-needs-what matrix, and the Power BI licensing guide covers Pro and PPU in depth.

What Does Not Require F64

Two long-standing assumptions are now out of date.

Copilot and AI. Early in Fabric's life, Copilot required F64 or above. Microsoft's current Copilot overview states that Copilot "is enabled by default for tenants with paid Fabric capacities (F2 or higher)," and Fabric data agents list a paid F2 or higher capacity as their prerequisite. Copilot is not available on trial capacities. It does consume CUs, so on a small SKU it competes with your refreshes and queries - see our breakdown of what Copilot in Fabric costs in capacity. Features change quickly, so check the release status page in the Copilot documentation before committing to a SKU on AI grounds.

Fabric workloads themselves. Lakehouses, warehouses, notebooks and pipelines run on any F SKU from F2. If your users are all authors with Pro anyway, F64 buys compute, not licensing.

One trap worth naming: the Fabric trial is 64 CUs and behaves like F64 for free viewers. Teams who pilot on a trial and then buy F16 are often surprised when their viewers lose access. The free and trial options explain what ends with the trial.

F64 vs P1: The Premium Retirement

Microsoft maps Power BI Premium P1 to F64 - both are 64 CUs, equivalent to 8 Power BI v-cores - and P2 to F128, P3 to F256, and so on. Microsoft describes the table as a compute comparison, not functional or licensing equivalence: F SKUs add pause and resume, scale up or down, Azure networking features and regional pricing, but have no autoscale.

The retirement position, per Microsoft's migration FAQ updated September 2026: Microsoft no longer sells new P SKUs, and each P SKU subscription retires at the end of its current agreement term. Customers with expiring Enterprise Agreements or Microsoft Cloud Agreements cannot renew P capacity. After the subscription ends there is a 30-day grace period, throttling from day 31 and rejected operations from day 91. Migration is not automatic - buy the F SKU first, reassign workspaces, validate, then cancel.

F64 is a safe landing point for a P1 customer, not a mandatory one. Microsoft's own guidance is to right-size from measured consumption in the Capacity Metrics app.

The F32 vs F64 Break-Even

The decision most organisations actually face is F32 plus Pro licences for every viewer, versus F64 with free viewers. Power BI Pro is $14 per user per month on Microsoft's US pricing page (paid yearly). Authors need Pro on either SKU, so leave them out and count viewers only.

Reserved: F64 costs about $5,003 against $2,501 for F32 - a gap of about $2,502 per month. Divided by $14, that is roughly 179 viewers.
Pay-as-you-go: F64 costs about $8,410 against about $4,205 for F32 - a gap of about $4,205, or roughly 300 viewers.

Below those numbers, F32 plus Pro is cheaper; above them, F64 wins on licensing alone, and you get double the compute into the bargain. Run the same sum in pounds or rand with your local Pro price.

Two adjustments before you decide. First, if F32 is already running hot, you may need F64 for compute regardless - our capacity sizing guide covers reading utilisation properly. Second, check whether viewers already hold Pro through Microsoft 365 E5, which changes the maths entirely.

Where Solv Systems Comes In

The analysis is the same every time: current viewer counts, capacity metrics, P1 renewal dates and the reservation decision, in one model. If you are weighing F32 against F64 or planning a P1 migration, our Microsoft Fabric consulting team can size it from your real usage before you sign a one-year commitment.

Sources and Further Reading

Frequently asked

At Microsoft list prices checked on 25 September 2026, an always-on F64 costs about $8,410 per month pay-as-you-go in East US, £7,223 in UK South and R179,391 in South Africa North. A 1-year reservation brings that to about $5,003, £4,296 and R106,658 per month - a saving of roughly 41%. Prices vary by region, so confirm yours on the Azure pricing page.

The headline change is that users with only a free Microsoft Fabric licence and a Viewer role on the workspace can view Power BI content. Below F64, every viewer needs Power BI Pro, PPU or an individual trial. F64 also raises Direct Lake guardrails (unlimited model size on OneLake, 1,500 million rows per table, 25 GB max memory) and, with a reservation, includes Power BI Report Server rights.

In compute terms, yes: Microsoft maps P1 to F64, both at 64 Capacity Units (8 v-cores). Microsoft is explicit that this is a compute comparison, not full functional equivalence - F SKUs add pause and resume, Azure networking features and regional pricing, but have no autoscale. P SKUs retire at the end of each customer's current agreement term.

Not according to Microsoft's current documentation. Copilot is enabled by default on paid Fabric capacities from F2 upwards, and Fabric data agents also list F2 or higher as the prerequisite. Copilot is not available on trial capacities. Copilot does consume capacity, so a small SKU can run out of headroom quickly.

On US list prices with 1-year reservations, F64 costs about $2,502 per month more than F32. At $14 per Power BI Pro licence, that equals roughly 179 viewers. If you run pay-as-you-go, the gap is about $4,205 per month, or roughly 300 viewers. Authors need Pro on either SKU, so count viewers only.

F128 doubles F64 to 128 Capacity Units and maps to P2; reserved it costs about $10,005 per month in East US. It adds no new licensing unlock - free viewers already work from F64 - but brings more compute and higher Direct Lake guardrails. Move up when measured utilisation says so, not by default.