diff --git a/packages/manager/.changeset/pr-12261-fixed-1747862074450.md b/packages/manager/.changeset/pr-12261-fixed-1747862074450.md
new file mode 100644
index 00000000000..29db545cd6a
--- /dev/null
+++ b/packages/manager/.changeset/pr-12261-fixed-1747862074450.md
@@ -0,0 +1,5 @@
+---
+"@linode/manager": Fixed
+---
+
+Radio buttons too large on plans table ([#12261](https://github.com/linode/manager/pull/12261))
diff --git a/packages/manager/src/features/components/PlansPanel/PlanSelection.tsx b/packages/manager/src/features/components/PlansPanel/PlanSelection.tsx
index 10777770000..563c66b59d6 100644
--- a/packages/manager/src/features/components/PlansPanel/PlanSelection.tsx
+++ b/packages/manager/src/features/components/PlansPanel/PlanSelection.tsx
@@ -153,6 +153,7 @@ export const PlanSelection = (props: PlanSelectionProps) => {
                     }
                     id={plan.id}
                     onChange={() => onSelect(plan.id)}
+                    size="small"
                   />
                 }
                 label={plan.heading}
@@ -162,6 +163,7 @@ export const PlanSelection = (props: PlanSelectionProps) => {
           <TableCell
             className={rowIsDisabled ? 'hasTooltip' : ''}
             data-qa-plan-name
+            sx={{ paddingLeft: 0.5 }}
           >
             {plan.heading} &nbsp;
             {showDisabledTooltip && (
diff --git a/packages/manager/src/features/components/PlansPanel/PlanSelectionTable.tsx b/packages/manager/src/features/components/PlansPanel/PlanSelectionTable.tsx
index d687f8720bc..62c8780490e 100644
--- a/packages/manager/src/features/components/PlansPanel/PlanSelectionTable.tsx
+++ b/packages/manager/src/features/components/PlansPanel/PlanSelectionTable.tsx
@@ -130,6 +130,7 @@ export const PlanSelectionTable = (props: PlanSelectionTableProps) => {
                 isPlanCell={isPlanCell}
                 key={testId}
                 noWrap={noWrap}
+                sx={isPlanCell ? { paddingLeft: 0.5 } : undefined}
               >
                 {isPlanCell && filterOptions?.header
                   ? filterOptions?.header
diff --git a/packages/ui/src/components/Radio/Radio.stories.tsx b/packages/ui/src/components/Radio/Radio.stories.tsx
index d87c7293454..40ac58c8d0e 100644
--- a/packages/ui/src/components/Radio/Radio.stories.tsx
+++ b/packages/ui/src/components/Radio/Radio.stories.tsx
@@ -1,6 +1,6 @@
 // @todo: modularization - Import from 'ui' package once FormControlLabel is migrated.
 import { FormControlLabel } from '@mui/material';
-import React from 'react';
+import React, { useState } from 'react';
 
 import { Box } from '../Box';
 import { RadioGroup } from '../RadioGroup';
@@ -9,19 +9,86 @@ import { Radio } from './Radio';
 import type { RadioProps } from './Radio';
 import type { Meta, StoryObj } from '@storybook/react';
 
-const meta: Meta<RadioProps> = {
+interface CustomArgs {
+  checkedState?: 'checked' | 'unchecked';
+  state?: 'active' | 'default' | 'disabled' | 'hover' | 'readonly';
+}
+
+type RadioStoryProps = RadioProps & CustomArgs;
+
+const meta: Meta<RadioStoryProps> = {
   args: {
-    defaultChecked: false,
-    disableFocusRipple: false,
-    disableRipple: false,
-    disableTouchRipple: false,
-    disabled: false,
-    name: 'radio',
-    readOnly: false,
+    checkedState: 'unchecked',
+    size: 'medium',
+    state: 'default',
+  },
+  argTypes: {
+    state: {
+      options: ['default', 'disabled', 'readonly', 'hover', 'active'],
+      control: { type: 'radio' },
+      description: 'The state to render',
+      table: {
+        type: { summary: 'string' },
+        defaultValue: { summary: '"default"' },
+      },
+    },
+    checkedState: {
+      options: ['unchecked', 'checked'],
+      control: { type: 'radio' },
+      description: 'The checked state of the radio button',
+      table: {
+        type: { summary: 'string' },
+        defaultValue: { summary: '"unchecked"' },
+      },
+    },
+    size: {
+      control: {
+        type: 'radio',
+      },
+      options: ['small', 'medium'],
+      description: 'The size of the component',
+      table: {
+        type: { summary: 'string' },
+        defaultValue: { summary: '"medium"' },
+      },
+    },
+    disableRipple: {
+      control: 'boolean',
+      description: 'If true, the ripple effect is disabled',
+      table: {
+        type: { summary: 'boolean' },
+        defaultValue: { summary: 'false' },
+      },
+    },
+    disableFocusRipple: {
+      control: 'boolean',
+      description: 'If true, the focus ripple effect is disabled',
+      table: {
+        type: { summary: 'boolean' },
+        defaultValue: { summary: 'false' },
+      },
+    },
+    disableTouchRipple: {
+      control: 'boolean',
+      description: 'If true, the touch ripple effect is disabled',
+      table: {
+        type: { summary: 'boolean' },
+        defaultValue: { summary: 'false' },
+      },
+    },
+    name: { table: { disable: true } },
+    slots: { table: { disable: true } },
+    slotProps: { table: { disable: true } },
+    component: { table: { disable: true } },
+    ref: { table: { disable: true } },
+    defaultChecked: { table: { disable: true } },
+    disabled: { table: { disable: true } },
+    readOnly: { table: { disable: true } },
+    checked: { table: { disable: true } },
   },
   component: Radio,
   decorators: [
-    (Story) => (
+    (Story: React.ComponentType) => (
       <Box sx={{ padding: 4 }}>
         <Story />
       </Box>
@@ -30,23 +97,176 @@ const meta: Meta<RadioProps> = {
   title: 'Foundations/Radio',
 };
 
-type Story = StoryObj<RadioProps>;
+type Story = StoryObj<RadioStoryProps>;
 
 export const Default: Story = {
-  render: (args: RadioProps) => <Radio {...args} />,
+  render: (args) => {
+    const {
+      state = 'default',
+      checkedState = 'unchecked',
+      ...radioProps
+    } = args;
+
+    let stateProps: Partial<RadioProps> = {};
+    if (state === 'disabled') {
+      stateProps = { disabled: true };
+    } else if (state === 'readonly') {
+      stateProps = { readOnly: true };
+    }
+
+    let stateStyle = {};
+    if (state === 'hover') {
+      stateStyle = { backgroundColor: 'rgba(0, 0, 0, 0.04)' };
+    } else if (state === 'active') {
+      stateStyle = { backgroundColor: 'rgba(0, 0, 0, 0.08)' };
+    }
+
+    const isChecked = checkedState === 'checked';
+
+    return (
+      <Box sx={{ '& .MuiRadio-root': stateStyle }}>
+        <Radio {...radioProps} {...stateProps} checked={isChecked} />
+      </Box>
+    );
+  },
 };
 
-export const Groups: Story = {
-  name: 'Controlled Radio Groups',
+export const Unchecked: Story = {
+  parameters: {
+    controls: { disable: true },
+  },
+  render: () => <Radio />,
+};
+
+export const UncheckedDisabled: Story = {
+  name: 'Unchecked Disabled',
+  parameters: {
+    controls: { disable: true },
+  },
+  render: () => <Radio disabled />,
+};
+
+export const UncheckedReadOnly: Story = {
+  name: 'Unchecked Read Only',
+  parameters: {
+    controls: { disable: true },
+  },
+  render: () => <Radio readOnly />,
+};
+
+export const Checked: Story = {
+  parameters: {
+    controls: { disable: true },
+  },
+  render: () => <Radio checked />,
+};
+
+export const CheckedDisabled: Story = {
+  name: 'Checked Disabled',
+  parameters: {
+    controls: { disable: true },
+  },
+  render: () => <Radio checked disabled />,
+};
+
+export const CheckedReadOnly: Story = {
+  name: 'Checked Read Only',
+  parameters: {
+    controls: { disable: true },
+  },
+  render: () => <Radio checked readOnly />,
+};
+
+export const SmallSize: Story = {
+  name: 'Small Size',
+  parameters: {
+    controls: { disable: true },
+  },
   render: () => (
-    <RadioGroup>
+    <Box sx={{ display: 'flex', gap: 2, alignItems: 'center' }}>
+      <Radio size="small" />
+      <Radio checked size="small" />
+    </Box>
+  ),
+};
+
+const RadioGroupsDemo = (props: { size: 'medium' | 'small' }) => {
+  const { size } = props;
+  const [selectedValue, setSelectedValue] = useState('Option 1');
+
+  const handleChange = (event: React.ChangeEvent<HTMLInputElement>) => {
+    setSelectedValue(event.target.value);
+  };
+
+  return (
+    <RadioGroup onChange={handleChange} value={selectedValue}>
       <FormControlLabel
-        control={<Radio checked={false} disabled />}
+        control={<Radio disabled size={size} />}
         label="Disabled"
+        value="Disabled"
+      />
+      <FormControlLabel
+        control={<Radio size={size} />}
+        label="Option 1"
+        value="Option 1"
+      />
+      <FormControlLabel
+        control={<Radio size={size} />}
+        label="Option 2"
+        value="Option 2"
       />
-      <FormControlLabel control={<Radio />} label="Option 1" value="Option 1" />
-      <FormControlLabel control={<Radio />} label="Option 2" value="Option 2" />
     </RadioGroup>
+  );
+};
+
+interface GroupsArgs {
+  size: 'medium' | 'small';
+}
+
+export const Groups: StoryObj<GroupsArgs> = {
+  name: 'Controlled Radio Groups',
+  args: {
+    size: 'medium',
+  },
+  argTypes: {
+    size: {
+      control: {
+        type: 'radio',
+      },
+      options: ['small', 'medium'],
+      description: 'The size of the component',
+      table: {
+        type: { summary: 'string' },
+        defaultValue: { summary: '"medium"' },
+      },
+    },
+  },
+  render: (args) => {
+    return <RadioGroupsDemo size={args.size} />;
+  },
+};
+
+export const WithLabel: Story = {
+  name: 'With Label',
+  parameters: {
+    controls: { disable: true },
+  },
+  render: () => (
+    <Box sx={{ display: 'flex', flexDirection: 'column', gap: 2 }}>
+      <FormControlLabel control={<Radio />} label="Unchecked with label" />
+      <FormControlLabel
+        control={<Radio checked />}
+        label="Checked with label"
+      />
+      <FormControlLabel
+        control={<Radio disabled />}
+        label="Disabled with label"
+      />
+      <FormControlLabel
+        control={<Radio checked disabled />}
+        label="Checked disabled with label"
+      />
+    </Box>
   ),
 };
 
diff --git a/packages/ui/src/foundations/themes/dark.ts b/packages/ui/src/foundations/themes/dark.ts
index 38bce07501a..8b1f3e77ce1 100644
--- a/packages/ui/src/foundations/themes/dark.ts
+++ b/packages/ui/src/foundations/themes/dark.ts
@@ -791,6 +791,11 @@ export const darkTheme: ThemeOptions = {
             color: theme.palette.primary.main,
           },
           padding: '10px 10px',
+          '&.MuiRadio-sizeSmall': {
+            '.MuiSvgIcon-fontSizeSmall': {
+              fontSize: '16px',
+            },
+          },
         }),
       },
     },