diff --git a/drivers/sensor/bme280/bme280.c b/drivers/sensor/bme280/bme280.c
index 72ac74635a5..e8ee9f7d8eb 100644
--- a/drivers/sensor/bme280/bme280.c
+++ b/drivers/sensor/bme280/bme280.c
@@ -212,8 +212,6 @@ static int bme280_channel_get(struct device *dev,
 		 */
 		val->val1 = (data->comp_humidity >> 10);
 		val->val2 = (((data->comp_humidity & 0x3ff) * 1000 * 1000) >> 10);
-		val->val1 = val->val1 * 1000 + (val->val2 * 1000) / 1000000;
-		val->val2 = (val->val2 * 1000) % 1000000;
 		break;
 	default:
 		return -EINVAL;
diff --git a/drivers/sensor/dht/dht.c b/drivers/sensor/dht/dht.c
index 54e4c20be44..8c50ad76eaf 100644
--- a/drivers/sensor/dht/dht.c
+++ b/drivers/sensor/dht/dht.c
@@ -168,7 +168,7 @@ static int dht_channel_get(struct device *dev,
 #if defined(CONFIG_DHT_CHIP_DHT11)
 	/* use only integral data byte */
 	if (chan == SENSOR_CHAN_HUMIDITY) {
-		val->val1 = drv_data->sample[0] * 1000;
+		val->val1 = drv_data->sample[0];
 		val->val2 = 0;
 	} else { /* chan == SENSOR_CHAN_TEMP */
 		val->val1 = drv_data->sample[2];
@@ -183,8 +183,8 @@ static int dht_channel_get(struct device *dev,
 
 	if (chan == SENSOR_CHAN_HUMIDITY) {
 		raw_val = (drv_data->sample[0] << 8) | drv_data->sample[1];
-		val->val1 = raw_val * 100;
-		val->val2 = 0;
+		val->val1 = raw_val / 10;
+		val->val2 = (raw_val % 10) * 100000;
 	} else { /* chan == SENSOR_CHAN_TEMP */
 		raw_val = (drv_data->sample[2] << 8) | drv_data->sample[3];
 
diff --git a/drivers/sensor/hdc1008/hdc1008.c b/drivers/sensor/hdc1008/hdc1008.c
index dd5f69f554e..68ff1d2b678 100644
--- a/drivers/sensor/hdc1008/hdc1008.c
+++ b/drivers/sensor/hdc1008/hdc1008.c
@@ -73,10 +73,12 @@ static int hdc1008_channel_get(struct device *dev,
 		val->val1 = (s32_t)(tmp >> 16) - 40;
 		val->val2 = (1000000 * (tmp & 0xFFFF)) >> 16;
 	} else if (chan == SENSOR_CHAN_HUMIDITY) {
-		/* val = 100000 * sample / 2^16 */
-		tmp = 100000 * (u64_t)drv_data->rh_sample;
-		val->val1 = tmp >> 16;
-		val->val2 = (1000000 * (tmp & 0xFFFF)) >> 16;
+		/* val = 100 * sample / 2^16 */
+		u32_t tmp2;
+		tmp2 = 100 * (u32_t)drv_data->rh_sample;
+		val->val1 = tmp2 >> 16;
+		/* x * 1000000 / 65536 == x * 15625 / 1024 */
+		val->val2 = (15625 * (tmp2 & 0xFFFF)) >> 10;
 	} else {
 		return -ENOTSUP;
 	}
diff --git a/drivers/sensor/hts221/hts221.c b/drivers/sensor/hts221/hts221.c
index 31a4e03a720..2fd20415bcb 100644
--- a/drivers/sensor/hts221/hts221.c
+++ b/drivers/sensor/hts221/hts221.c
@@ -43,9 +43,9 @@ static int hts221_channel_get(struct device *dev,
 			   (drv_data->h1_t0_out - drv_data->h0_t0_out) +
 			   drv_data->h0_rh_x2;
 
-		/* convert humidity x2 to mili-percent */
-		val->val1 = conv_val * 500;
-		val->val2 = 0;
+		/* convert humidity x2 to percent */
+		val->val1 = conv_val / 2;
+		val->val2 = (conv_val % 2) * 500000;
 	}
 
 	return 0;
diff --git a/drivers/sensor/sht3xd/sht3xd.c b/drivers/sensor/sht3xd/sht3xd.c
index 63b72f52807..4569c4add27 100644
--- a/drivers/sensor/sht3xd/sht3xd.c
+++ b/drivers/sensor/sht3xd/sht3xd.c
@@ -126,10 +126,11 @@ static int sht3xd_channel_get(struct device *dev,
 		val->val1 = (s32_t)(tmp / 0xFFFF) - 45;
 		val->val2 = (1000000 * (tmp % 0xFFFF)) / 0xFFFF;
 	} else if (chan == SENSOR_CHAN_HUMIDITY) {
-		/* val = 100000 * sample / (2^16 -1) */
-		tmp = 100000 * (u64_t)drv_data->rh_sample;
-		val->val1 = tmp / 0xFFFF;
-		val->val2 = (1000000 * (tmp % 0xFFFF)) / 0xFFFF;
+		/* val = 100 * sample / (2^16 -1) */
+		u32_t tmp2 = 100 * (u32_t)drv_data->rh_sample;
+		val->val1 = tmp2 / 0xFFFF;
+		/* x * 100000 / 65536 == x * 15625 / 1024 */
+		val->val2 = (tmp2 % 0xFFFF) * 15625 / 1024;
 	} else {
 		return -ENOTSUP;
 	}
diff --git a/include/sensor.h b/include/sensor.h
index a7cc7ea60ee..2c2c858393e 100644
--- a/include/sensor.h
+++ b/include/sensor.h
@@ -98,7 +98,7 @@ enum sensor_channel {
 	 * object is close.
 	 */
 	SENSOR_CHAN_PROX,
-	/** Humidity, in milli percent. */
+	/** Humidity, in percent. */
 	SENSOR_CHAN_HUMIDITY,
 	/** Illuminance in visible spectrum, in lux. */
 	SENSOR_CHAN_LIGHT,
diff --git a/samples/boards/arduino_101/environmental_sensing/ap/src/main.c b/samples/boards/arduino_101/environmental_sensing/ap/src/main.c
index 0ab9365bc0e..5db7fc711b8 100644
--- a/samples/boards/arduino_101/environmental_sensing/ap/src/main.c
+++ b/samples/boards/arduino_101/environmental_sensing/ap/src/main.c
@@ -105,7 +105,7 @@ static void sensor_ipm_callback(void *context, u32_t id, volatile void *data)
 		break;
 	case SENSOR_CHAN_HUMIDITY:
 		/* resolution of 0.01 percent */
-		humidity_value = val->val1 / 10;
+		humidity_value = val->val1 * 100 + val->val2 / 10000;
 		break;
 	case SENSOR_CHAN_PRESS:
 		/* resolution of 0.1 Pa */
diff --git a/samples/boards/arduino_101/environmental_sensing/sensor/src/main.c b/samples/boards/arduino_101/environmental_sensing/sensor/src/main.c
index 7a38b41550c..f72736a31a1 100644
--- a/samples/boards/arduino_101/environmental_sensing/sensor/src/main.c
+++ b/samples/boards/arduino_101/environmental_sensing/sensor/src/main.c
@@ -113,8 +113,7 @@ void main(void)
 
 		/* display himidity on LCD */
 		glcd_cursor_pos_set(glcd, 17 - strlen(row), 0);
-		sprintf(row, "RH:%d%c", val[1].val1/1000,
-			37 /* percent symbol */);
+		sprintf(row, "RH:%d%%", val[1].val1);
 		glcd_print(glcd, row, strlen(row));
 
 		/* display pressure on LCD */
diff --git a/samples/sensor/hts221/src/main.c b/samples/sensor/hts221/src/main.c
index 2a5f856ad9d..0b7eaf04dc5 100644
--- a/samples/sensor/hts221/src/main.c
+++ b/samples/sensor/hts221/src/main.c
@@ -39,9 +39,9 @@ void main(void)
 		/* display temperature */
 		printf("Temperature:%.1f C\n", sensor_value_to_double(&temp));
 
-		/* display humidity (converted from millipercent) */
-		printf("Relative Humidity:%.0f%%\n",
-		       sensor_value_to_double(&hum) / 1000);
+		/* display humidity */
+		printf("Relative Humidity:%.1f%%\n",
+		       sensor_value_to_double(&hum));
 
 		k_sleep(2000);
 	}