diff --git a/include/AT_StoppingPower.h b/include/AT_StoppingPower.h
index 2b3b7b11..d1fe5bf7 100644
--- a/include/AT_StoppingPower.h
+++ b/include/AT_StoppingPower.h
@@ -132,6 +132,28 @@ int AT_Mass_Stopping_Power_with_no( const long stopping_power_source_no,
 		const long material_no,
 		double stopping_power_MeV_cm2_g[]);
 
+/**
+ * Retrieves the electronic mass stopping power in MeV*cm2/g
+ * for total kinetic energies given in MeV.
+ *
+ * Each E_MeV[i] value is converted internally to MeV/u using particle_no[i]
+ * before the stopping power is calculated.
+ *
+ * @param[in]   stopping_power_source_no  id of the data source
+ * @param[in]   n                         number of energies / particles
+ * @param[in]   E_MeV                     total kinetic energies in MeV (array of size n)
+ * @param[in]   particle_no               particle numbers (array of size n)
+ * @param[in]   material_no               material number
+ * @param[out]  stopping_power_MeV_cm2_g  stopping powers (array of size n)
+ * @return      status
+ */
+int AT_Mass_Stopping_Power_E_MeV_with_no( const long stopping_power_source_no,
+		const long n,
+		const double E_MeV[],
+		const long particle_no[],
+		const long material_no,
+		double stopping_power_MeV_cm2_g[]);
+
 /**
  * Retrieves the electronic stopping power in keV/um for
  * the requested energies and particles for a specified
@@ -154,6 +176,29 @@ int AT_Stopping_Power_with_no( const long stopping_power_source_no,
 		const long particle_no[],
 		const long material_no,
 		double stopping_power_keV_um[]);
+
+/**
+ * Retrieves the electronic stopping power in keV/um
+ * for total kinetic energies given in MeV.
+ *
+ * Each E_MeV[i] value is converted internally to MeV/u using particle_no[i]
+ * before the stopping power is calculated.
+ *
+ * @param[in]   stopping_power_source_no  id of the data source
+ * @param[in]   n                         number of energies / particles
+ * @param[in]   E_MeV                     total kinetic energies in MeV (array of size n)
+ * @param[in]   particle_no               particle numbers (array of size n)
+ * @param[in]   material_no               material number
+ * @param[out]  stopping_power_keV_um     stopping powers (array of size n)
+ * @return      status
+ */
+int AT_Stopping_Power_E_MeV_with_no( const long stopping_power_source_no,
+		const long n,
+		const double E_MeV[],
+		const long particle_no[],
+		const long material_no,
+		double stopping_power_keV_um[]);
+
 /**
  * TODO
  * @param[in] stopping_power_source_no
@@ -166,6 +211,66 @@ double AT_Energy_MeV_u_from_Stopping_Power_single( const long stopping_power_sou
 		const double Stopping_Power_MeV_cm2_g, const long particle_no,
 		const long material_no);
 
+/**
+ * Retrieves the stopping power in keV/um for a
+ * single particle with total kinetic energy given in MeV.
+ *
+ * The total kinetic energy is converted to MeV/u using particle_no
+ * before the stopping power is calculated.
+ *
+ * @param[in]  stopping_power_source_no  id of the data source
+ * @param[in]  E_MeV                     total kinetic energy in MeV
+ * @param[in]  particle_no               particle number
+ * @param[in]  material_no               material number
+ * @return     stopping power in keV/um
+ */
+double AT_Stopping_Power_E_MeV_single( const long stopping_power_source_no,
+		const double E_MeV, const long particle_no,
+		const long material_no);
+
+/**
+ * Retrieves the mass stopping power in MeV*cm2/g
+ * for a single particle with total kinetic energy given in MeV.
+ *
+ * The total kinetic energy is converted to MeV/u using particle_no
+ * before the stopping power is calculated.
+ *
+ * @param[in]  stopping_power_source_no  id of the data source
+ * @param[in]  E_MeV                     total kinetic energy in MeV
+ * @param[in]  particle_no               particle number
+ * @param[in]  material_no               material number
+ * @return     mass stopping power in MeV*cm2/g
+ */
+double AT_Mass_Stopping_Power_E_MeV_single( const long stopping_power_source_no,
+		const double E_MeV, const long particle_no,
+		const long material_no);
+
+/**
+ * Retrieves the stopping power in keV/um for a
+ * single particle with kinetic energy given in MeV/u.
+ *
+ * @param[in]  stopping_power_source_no  id of the data source
+ * @param[in]  E_MeV_u                   kinetic energy in MeV/u
+ * @param[in]  particle_no               particle number
+ * @param[in]  material_no               material number
+ * @return     stopping power in keV/um
+ */
+double AT_Stopping_Power_E_MeV_u_single( const long stopping_power_source_no,
+		const double E_MeV_u, const long particle_no,
+		const long material_no);
 
+/**
+ * Retrieves the mass stopping power in MeV*cm2/g
+ * for a single particle with kinetic energy given in MeV/u.
+ *
+ * @param[in]  stopping_power_source_no  id of the data source
+ * @param[in]  E_MeV_u                   kinetic energy in MeV/u
+ * @param[in]  particle_no               particle number
+ * @param[in]  material_no               material number
+ * @return     mass stopping power in MeV*cm2/g
+ */
+double AT_Mass_Stopping_Power_E_MeV_u_single( const long stopping_power_source_no,
+		const double E_MeV_u, const long particle_no,
+		const long material_no);
 
 #endif /* AT_STOPPINGPOWER_H_ */
diff --git a/src/AT_StoppingPower.c b/src/AT_StoppingPower.c
index 988cdf3e..7f8c8a0a 100644
--- a/src/AT_StoppingPower.c
+++ b/src/AT_StoppingPower.c
@@ -125,6 +125,33 @@ int AT_Mass_Stopping_Power_with_no( const long stopping_power_source_no,
 	return result;
 }
 
+int AT_Mass_Stopping_Power_E_MeV_with_no( const long stopping_power_source_no,
+		const long n,
+		const double E_MeV[],
+		const long particle_no[],
+		const long material_no,
+		double stopping_power_MeV_cm2_g[]){
+
+	double *E_MeV_u = malloc((size_t)n * sizeof(*E_MeV_u));
+	if (E_MeV_u == NULL) {
+		fprintf(stderr, "Memory allocation failed\n");
+		exit(1);
+	}
+
+	for (long i = 0; i < n; i++) {
+		E_MeV_u[i] = AT_E_MeV_u_from_E_MeV(E_MeV[i], particle_no[i]);
+	}
+	int result = AT_Mass_Stopping_Power_with_no(stopping_power_source_no,
+			n,
+			E_MeV_u,
+			particle_no,
+			material_no,
+			stopping_power_MeV_cm2_g);
+
+	free(E_MeV_u);
+	return result;
+}
+
 int AT_Stopping_Power_with_no( const long stopping_power_source_no,
 		const long n,
 		const double E_MeV_u[],
@@ -148,7 +175,32 @@ int AT_Stopping_Power_with_no( const long stopping_power_source_no,
 	return result;
 }
 
+int AT_Stopping_Power_E_MeV_with_no( const long stopping_power_source_no,
+		const long n,
+		const double E_MeV[],
+		const long particle_no[],
+		const long material_no,
+		double stopping_power_keV_um[]){
+	
+	double *E_MeV_u = malloc((size_t)n * sizeof(*E_MeV_u));
+	if (E_MeV_u == NULL) {
+		fprintf(stderr, "Memory allocation failed\n");
+		exit(1);
+	}
+	
+	for (long i = 0; i < n; i++) {
+		E_MeV_u[i] = AT_E_MeV_u_from_E_MeV(E_MeV[i], particle_no[i]);
+	}
+	int result = AT_Stopping_Power_with_no(stopping_power_source_no,
+			n,
+			E_MeV_u,
+			particle_no,
+			material_no,
+			stopping_power_keV_um);
 
+	free(E_MeV_u);
+	return result;
+}
 
 double AT_Energy_MeV_u_from_Stopping_Power_single( const long stopping_power_source_no,
 		const double Stopping_Power_MeV_cm2_g,
@@ -211,5 +263,58 @@ double AT_Energy_MeV_u_from_Stopping_Power_single( const long stopping_power_sou
 	return -1;
 }
 
+double AT_Stopping_Power_E_MeV_single( const long stopping_power_source_no,
+		const double E_MeV, const long particle_no,
+		const long material_no){
+
+	double stopping_power_keV_um;
+	AT_Stopping_Power_E_MeV_with_no(stopping_power_source_no,
+			1,
+			&E_MeV,
+			&particle_no,
+			material_no,
+			&stopping_power_keV_um);
+	return stopping_power_keV_um;
+}
+
+double AT_Mass_Stopping_Power_E_MeV_single( const long stopping_power_source_no,
+		const double E_MeV, const long particle_no,
+		const long material_no){
+
+	double stopping_power_MeV_cm2_g;
+	AT_Mass_Stopping_Power_E_MeV_with_no(stopping_power_source_no,
+			1,
+			&E_MeV,
+			&particle_no,
+			material_no,
+			&stopping_power_MeV_cm2_g);
+	return stopping_power_MeV_cm2_g;
+}
+
+double AT_Stopping_Power_E_MeV_u_single( const long stopping_power_source_no,
+		const double E_MeV_u, const long particle_no,
+		const long material_no){
 
+	double stopping_power_keV_um;
+	AT_Stopping_Power_with_no(stopping_power_source_no,
+			1,
+			&E_MeV_u,
+			&particle_no,
+			material_no,
+			&stopping_power_keV_um);
+	return stopping_power_keV_um;
+}
+
+double AT_Mass_Stopping_Power_E_MeV_u_single( const long stopping_power_source_no,
+		const double E_MeV_u, const long particle_no,
+		const long material_no){
 
+	double stopping_power_MeV_cm2_g;
+	AT_Mass_Stopping_Power_with_no(stopping_power_source_no,
+			1,
+			&E_MeV_u,
+			&particle_no,
+			material_no,
+			&stopping_power_MeV_cm2_g);
+	return stopping_power_MeV_cm2_g;
+}