---
description: Available Container instance types and account-level limits for memory, vCPU, disk, and image storage.
title: Limits and Instance Types
image: https://developers.cloudflare.com/og-docs.png
---

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# Limits and Instance Types

Last updated Sep 3, 2026|Copy as Markdown| [View as Markdown](https://641a99ee.previews.developers.cloudflare.com/containers/platform/limits/index.md)| [Agent setup](https://641a99ee.previews.developers.cloudflare.com/agent-setup/)

## Instance Types

The memory, vCPU, and disk space for Containers are set through instance types. You can use one of six predefined instance types or configure a [custom instance type](#custom-instance-types).

| Instance Type | vCPU | Memory | Disk |
| --- | --- | --- | --- |
| lite | 1/16 | 256 MiB | 2 GB |
| basic | 1/4 | 1 GiB | 4 GB |
| standard-1 | 1/2 | 4 GiB | 8 GB |
| standard-2 | 1 | 6 GiB | 12 GB |
| standard-3 | 2 | 8 GiB | 16 GB |
| standard-4 | 4 | 12 GiB | 20 GB |

These are specified using the [`instance_type` property](https://641a99ee.previews.developers.cloudflare.com/workers/wrangler/configuration/#containers) in your Worker's Wrangler configuration file.

Note

The `dev` and `standard` instance types are preserved for backward compatibility and are aliases for `lite` and `standard-1`, respectively.

### Custom Instance Types

In addition to the predefined instance types, you can configure custom instance types by specifying `vcpu`, `memory_mib`, and `disk_mb` values. See the [Wrangler configuration documentation](https://641a99ee.previews.developers.cloudflare.com/workers/wrangler/configuration/#custom-instance-types) for configuration details.

Custom instance types have the following constraints:

| Resource | Limit |
| --- | --- |
| Minimum vCPU | 1 |
| Maximum vCPU | 4 |
| Maximum Memory | 12 GiB |
| Maximum Disk | 20 GB |
| Memory to vCPU ratio | Minimum 3 GiB memory per vCPU |
| Disk to Memory ratio | Maximum 2 GB disk per 1 GiB memory |

For workloads requiring less than 1 vCPU, use the predefined instance types such as `lite` or `basic`.

If you need larger instance sizes or higher account-level limits, contact your account team, file a support ticket, or fill out [this form ↗](https://forms.gle/CscdaEGuw5Hb6H2s7).

## Account limits

The following limits apply per account:

| Resource | Limit |
| --- | --- |
| Concurrent memory | 6 TiB |
| Concurrent vCPU | 1,500 |
| Concurrent disk | 30 TB |
| Image size | Same as [instance disk space](#instance-types) |
| Total image storage per account | 50 GB <sup>[1](#user-content-fn-1)</sup> |

## Footnotes

1. Delete container images with `wrangler containers delete` to free up space. If you delete a container image and then [roll back](https://641a99ee.previews.developers.cloudflare.com/workers/versions-and-deployments/rollbacks/) your Worker to a previous version, this version may no longer work. [↩](#user-content-fnref-1)

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