diff --git a/app/components/form/fields/ImageSelectField.tsx b/app/components/form/fields/ImageSelectField.tsx
index db2ff1f559..8d9a2f8021 100644
--- a/app/components/form/fields/ImageSelectField.tsx
+++ b/app/components/form/fields/ImageSelectField.tsx
@@ -9,7 +9,7 @@ import { useController, type Control } from 'react-hook-form'
 
 import type { Image } from '@oxide/api'
 import type { ListboxItem } from '@oxide/ui'
-import { GiB } from '@oxide/util'
+import { bytesToGiB, GiB } from '@oxide/util'
 
 import type { InstanceCreateInput } from 'app/forms/instance-create'
 
@@ -41,22 +41,43 @@ export function ImageSelectField({ images, control }: ImageSelectFieldProps) {
   )
 }
 
-const Slash = () => <span className="mx-0.5 text-quinary">/</span>
+const Slash = () => (
+  <span className="mx-1 text-quinary selected:text-accent-disabled">/</span>
+)
 
 export function toListboxItem(i: Image, includeProjectSiloIndicator = false): ListboxItem {
-  const projectSiloIndicator = includeProjectSiloIndicator ? (
-    <>
-      <Slash /> {i.projectId ? 'Project image' : 'Silo image'}
-    </>
-  ) : null
+  const { name, os, projectId, size, version } = i
+  const formattedSize = `${bytesToGiB(size, 1)} GiB`
+
+  // filter out any undefined metadata and create a comma-separated list
+  // for the selected listbox item (shown in labelString)
+  const condensedImageMetadata = [os, version, formattedSize].filter((i) => !!i).join(', ')
+  const metadataForLabelString = condensedImageMetadata.length
+    ? ` (${condensedImageMetadata})`
+    : ''
+
+  // for metadata showing in the dropdown's options, include the project / silo indicator if requested
+  const projectSiloIndicator = includeProjectSiloIndicator
+    ? `${projectId ? 'Project' : 'Silo'} image`
+    : null
+  // filter out undefined metadata here, as well, and create a `<Slash />`-separated list
+  // for the listbox item (shown for each item in the dropdown)
+  const metadataForLabel = [os, version, formattedSize, projectSiloIndicator]
+    .filter((i) => !!i)
+    .map((i, index) => (
+      <span key={`${i}`}>
+        {index > 0 ? <Slash /> : ''}
+        {i}
+      </span>
+    ))
   return {
     value: i.id,
-    labelString: `${i.name} (${i.os}, ${i.version})`,
+    labelString: `${name}${metadataForLabelString}`,
     label: (
       <>
-        <div>{i.name}</div>
-        <div className="text-secondary">
-          {i.os} <Slash /> {i.version} {projectSiloIndicator}
+        <div>{name}</div>
+        <div className="text-tertiary selected:text-accent-secondary">
+          {metadataForLabel}
         </div>
       </>
     ),
diff --git a/libs/util/math.spec.ts b/libs/util/math.spec.ts
index ee2fd81962..19c6f2b4d0 100644
--- a/libs/util/math.spec.ts
+++ b/libs/util/math.spec.ts
@@ -7,7 +7,20 @@
  */
 import { expect, it } from 'vitest'
 
-import { splitDecimal } from './math'
+import { GiB } from '.'
+import { round, splitDecimal } from './math'
+
+it('rounds properly', () => {
+  expect(round(123.456, 0)).toEqual(123)
+  expect(round(123.456, 1)).toEqual(123.5)
+  expect(round(123.456, 2)).toEqual(123.46)
+  expect(round(123.456, 3)).toEqual(123.456)
+  expect(round(123.456, 4)).toEqual(123.456) // trailing zeros are culled
+  expect(round(1.9, 0)).toEqual(2)
+  expect(round(1.9, 1)).toEqual(1.9)
+  expect(round(5 / 2, 2)).toEqual(2.5) // math expressions are resolved
+  expect(round(1879048192 / GiB, 2)).toEqual(1.75) // constants can be evaluated
+})
 
 it.each([
   [1.23, ['1', '.23']],
diff --git a/libs/util/units.ts b/libs/util/units.ts
index 9ccdc1aab3..e88a5672a5 100644
--- a/libs/util/units.ts
+++ b/libs/util/units.ts
@@ -12,5 +12,5 @@ export const MiB = 1024 * KiB
 export const GiB = 1024 * MiB
 export const TiB = 1024 * GiB
 
-export const bytesToGiB = (b: number) => round(b / GiB, 2)
-export const bytesToTiB = (b: number) => round(b / TiB, 2)
+export const bytesToGiB = (b: number, digits = 2) => round(b / GiB, digits)
+export const bytesToTiB = (b: number, digits = 2) => round(b / TiB, digits)