diff --git a/doc/variables.xml b/doc/variables.xml
index 1466ac1d..c2162935 100644
--- a/doc/variables.xml
+++ b/doc/variables.xml
@@ -1015,10 +1015,10 @@
 	<varlistentry>
 		<term>
 			<command><option>hwmon</option></command>
-			<option>(dev) type n</option>
+			<option>(dev) type n (factor offset)</option>
 		</term>
 		<listitem>
-			Hwmon sensor from sysfs (Linux 2.6). Parameter dev may be omitted if you have only one hwmon device. Parameter type is either 'in' or 'vol' meaning voltage; 'fan' meaning fan; 'temp' meaning temperature. Parameter n is number of the sensor. See /sys/class/hwmon/ on your local computer.
+			Hwmon sensor from sysfs (Linux 2.6). Parameter dev may be omitted if you have only one hwmon device. Parameter type is either 'in' or 'vol' meaning voltage; 'fan' meaning fan; 'temp' meaning temperature. Parameter n is number of the sensor. See /sys/class/hwmon/ on your local computer. The optional arguments 'factor' and 'offset' allow precalculation of the raw input, which is being modified as follows: 'input = input * factor + offset'. Note that they have to be given as decimal values (i.e. contain at least one decimal place).
 			<para></para></listitem>
 	</varlistentry>
 
diff --git a/src/conky.c b/src/conky.c
index ab5f971d..0b603d07 100644
--- a/src/conky.c
+++ b/src/conky.c
@@ -1716,7 +1716,8 @@ static struct text_object *construct_text_object(const char *s,
 
 	END OBJ(hwmon, INFO_SYSFS)
 		char buf1[64], buf2[64];
-		int n;
+		float factor, offset;
+		int n, found = 0;
 
 		if (!arg) {
 			ERR("hwmon needs argumanets");
@@ -1724,18 +1725,31 @@ static struct text_object *construct_text_object(const char *s,
 			return NULL;
 		}
 
-		if (sscanf(arg, "%63s %63s %d", buf1, buf2, &n) != 3) {
-			/* if scanf couldn't read three values, read type and num and use
-			 * default device */
-			sscanf(arg, "%63s %d", buf2, &n);
-			obj->data.sysfs.fd = open_hwmon_sensor(0, buf2, n,
-				&obj->data.sysfs.arg, obj->data.sysfs.devtype);
-			strncpy(obj->data.sysfs.type, buf2, 63);
-		} else {
-			obj->data.sysfs.fd = open_hwmon_sensor(buf1, buf2, n,
-				&obj->data.sysfs.arg, obj->data.sysfs.devtype);
-			strncpy(obj->data.sysfs.type, buf2, 63);
+		buf1[0] = 0;
+		factor = 1.0;
+		offset = 0.0;
+
+		if (sscanf(arg, "%63s %63s %d %f %f", buf1, buf2, &n, &factor, &offset) == 5)
+			found = 1;
+		if (!found && (sscanf(arg, "%63s %d %f %f", buf2, &n, &factor, &offset) == 3))
+			found = 1;
+		if (!found && (sscanf(arg, "%63s %63s %d", buf1, buf2, &n) == 3))
+			found = 1;
+		if (!found && (sscanf(arg, "%63s %d", buf2, &n) == 2))
+			found = 1;
+
+		if (!found) {
+			ERR("hwmon failed to parse arguments");
+			obj->type = OBJ_text;
+			return NULL;
 		}
+		DBGP("parsed hwmon args: %s %s %d %f %f\n", buf1, buf2, n, factor, offset);
+		obj->data.sysfs.fd = open_hwmon_sensor((*buf1) ? buf1 : 0, buf2, n,
+				&obj->data.sysfs.arg, obj->data.sysfs.devtype);
+		strncpy(obj->data.sysfs.type, buf2, 63);
+		obj->data.sysfs.factor = factor;
+		obj->data.sysfs.offset = offset;
+
 #endif /* !__OpenBSD__ */
 
 	END
@@ -4136,6 +4150,8 @@ static void generate_text_internal(char *p, int p_max_size,
 				r = get_sysfs_info(&obj->data.sysfs.fd, obj->data.sysfs.arg,
 					obj->data.sysfs.devtype, obj->data.sysfs.type);
 
+				r = r * obj->data.sysfs.factor + obj->data.sysfs.offset;
+
 				if (!strncmp(obj->data.sysfs.type, "temp", 4)) {
 					temp_print(p, p_max_size, r, TEMP_CELSIUS);
 				} else if (r >= 100.0 || r == 0) {
diff --git a/src/text_object.h b/src/text_object.h
index 0037655e..fe915a28 100644
--- a/src/text_object.h
+++ b/src/text_object.h
@@ -460,7 +460,8 @@ struct text_object {
 			int arg;
 			char devtype[256];
 			char type[64];
-		} sysfs;		/* 2 */
+			float factor, offset;
+		} sysfs;
 
 		struct {
 			struct text_object *next;