diff --git a/components/sensor/sps30.rst b/components/sensor/sps30.rst
index ac085be2c..bfb0e9640 100644
--- a/components/sensor/sps30.rst
+++ b/components/sensor/sps30.rst
@@ -81,31 +81,31 @@ Configuration variables:
   - **id** (*Optional*, :ref:`config-id`): Set the ID of this sensor for use in automation and lambdas.
   - All other options from :ref:`Sensor <config-sensor>`.
 
-- **pmc_0_5** (*Optional*): The information for the **Number Concentration** sensor for ultrafine particles up to 0.5μm. Readings in particles/m³.
+- **pmc_0_5** (*Optional*): The information for the **Number Concentration** sensor for ultrafine particles up to 0.5μm. Readings in particles/cm³.
 
   - **name** (**Required**, string): The name for this sensor.
   - **id** (*Optional*, :ref:`config-id`): Set the ID of this sensor for use in automation and lambdas.
   - All other options from :ref:`Sensor <config-sensor>`.
 
-- **pmc_1_0** (*Optional*): The information for the **Number Concentration** sensor for fine particles up to 1μm. Readings in particles/m³.
+- **pmc_1_0** (*Optional*): The information for the **Number Concentration** sensor for fine particles up to 1μm. Readings in particles/cm³.
 
   - **name** (**Required**, string): The name for this sensor.
   - **id** (*Optional*, :ref:`config-id`): Set the ID of this sensor for use in automation and lambdas.
   - All other options from :ref:`Sensor <config-sensor>`.
 
-- **pmc_2_5** (*Optional*): The information for the **Number Concentration** sensor for fine particles up to 2.5μm. Readings in particles/m³.
+- **pmc_2_5** (*Optional*): The information for the **Number Concentration** sensor for fine particles up to 2.5μm. Readings in particles/cm³.
 
   - **name** (**Required**, string): The name for this sensor.
   - **id** (*Optional*, :ref:`config-id`): Set the ID of this sensor for use in automation and lambdas.
   - All other options from :ref:`Sensor <config-sensor>`.
 
-- **pmc_4_0** (*Optional*): The information for the **Number Concentration** sensor for coarse particles up to 4μm. Readings in particles/m³.
+- **pmc_4_0** (*Optional*): The information for the **Number Concentration** sensor for coarse particles up to 4μm. Readings in particles/cm³.
 
   - **name** (**Required**, string): The name for this sensor.
   - **id** (*Optional*, :ref:`config-id`): Set the ID of this sensor for use in automation and lambdas.
   - All other options from :ref:`Sensor <config-sensor>`.
 
-- **pmc_10_0** (*Optional*): The information for the **Number Concentration** sensor for coarse particles up to 10μm. Readings in particles/m³.
+- **pmc_10_0** (*Optional*): The information for the **Number Concentration** sensor for coarse particles up to 10μm. Readings in particles/cm³.
 
   - **name** (**Required**, string): The name for this sensor.
   - **id** (*Optional*, :ref:`config-id`): Set the ID of this sensor for use in automation and lambdas.