diff --git a/src/groups.md b/src/groups.md
index e35b0786..e907141d 100644
--- a/src/groups.md
+++ b/src/groups.md
@@ -81,7 +81,7 @@ and is not meant to be installed anywhere.
 @brief Light sensors with special function: Color recognition
 
 
-@defgroup compass Compass/Gyro/Magnometers
+@defgroup compass Compass/Gyro/Magnetometers
 @ingroup bycat
 @brief Measure magnetic field to give rotation or heading
 
diff --git a/src/hmc5883l/hmc5883l.hpp b/src/hmc5883l/hmc5883l.hpp
index 46c0f57d..9a92dae8 100644
--- a/src/hmc5883l/hmc5883l.hpp
+++ b/src/hmc5883l/hmc5883l.hpp
@@ -33,7 +33,7 @@
 namespace upm {
 
 /**
- * @brief HMC5883L Magnometer library
+ * @brief HMC5883L Magnetometer library
  * @defgroup hmc5883l libupm-hmc5883l
  * @ingroup seeed i2c compass robok
  */
diff --git a/src/lsm303/lsm303.hpp b/src/lsm303/lsm303.hpp
index b5ae6e70..6c5bbeb6 100644
--- a/src/lsm303/lsm303.hpp
+++ b/src/lsm303/lsm303.hpp
@@ -80,7 +80,7 @@ namespace upm {
  *
  * This module defines the LSM303DLH 3-axis magnetometer/3-axis accelerometer.
  * This module was tested with the Seeed Studio* Grove 6-Axis Accelerometer & Compass
- * module used over I2C. The magnometer and acceleromter are accessed
+ * module used over I2C. The magnetometer and acceleromter are accessed
  * at two seperate I2C addresses.
  *
  * @image html lsm303.jpeg
diff --git a/src/mpu9150/mpu9150.hpp b/src/mpu9150/mpu9150.hpp
index e83bffc1..97bc18b0 100644
--- a/src/mpu9150/mpu9150.hpp
+++ b/src/mpu9150/mpu9150.hpp
@@ -49,7 +49,7 @@ namespace upm {
    * @web http://www.seeedstudio.com/wiki/Grove_-_IMU_9DOF_v1.0
    * @con i2c gpio
    *
-   * @brief API for MPU9150 chip (Accelerometer, Gyro and Magnometer Sensor)
+   * @brief API for MPU9150 chip (Accelerometer, Gyro and Magnetometer Sensor)
    *
    * This module defines the MPU9150 interface for libmpu9150
    *
diff --git a/src/mpu9150/mpu9250.hpp b/src/mpu9150/mpu9250.hpp
index 97836b37..241f048d 100644
--- a/src/mpu9150/mpu9250.hpp
+++ b/src/mpu9150/mpu9250.hpp
@@ -42,7 +42,7 @@ namespace upm {
    * @web http://www.seeedstudio.com/wiki/Grove_-_IMU_9DOF_v2.0
    * @con i2c gpio
    *
-   * @brief API for MPU9250 chip (Accelerometer, Gyro and Magnometer Sensor)
+   * @brief API for MPU9250 chip (Accelerometer, Gyro and Magnetometer Sensor)
    *
    * This module defines the MPU9250 interface for libmpu9150
    *