diff --git a/src/drv-iio-buffer-accel.c b/src/drv-iio-buffer-accel.c
index b62c7ac..3972a3c 100644
--- a/src/drv-iio-buffer-accel.c
+++ b/src/drv-iio-buffer-accel.c
@@ -14,6 +14,10 @@
 #include <errno.h>
 #include <stdio.h>
 
+/* 1G (9.81m/s²) corresponds to "256"
+ * value x scale is in m/s² */
+#define SCALE_TO_FF(scale) (scale * 256 / 9.81)
+
 /**
  * iio_channel_info - information about a given channel
  * @name: channel name
@@ -507,7 +511,7 @@ process_scan_1 (char              *data,
 				*ch_val = (int) val;
 				*ch_present = TRUE;
 			}
-			*ch_val *= channels[k]->scale;
+			*ch_val *= SCALE_TO_FF(channels[k]->scale);
 			break;
 		case 2:
 		case 8:
diff --git a/src/drv-iio-poll-accel.c b/src/drv-iio-poll-accel.c
index ee7a514..1b4cc3a 100644
--- a/src/drv-iio-poll-accel.c
+++ b/src/drv-iio-poll-accel.c
@@ -14,6 +14,10 @@
 #include <errno.h>
 #include <stdio.h>
 
+/* 1G (9.81m/s²) corresponds to "256"
+ * value x scale is in m/s² */
+#define SCALE_TO_FF(scale) (scale * 256 / 9.81)
+
 typedef struct DrvData {
 	guint               timeout_id;
 	ReadingsUpdateFunc  callback_func;
@@ -61,7 +65,7 @@ iio_poll_accel_open (GUdevDevice        *device,
 
 	drv_data->callback_func = callback_func;
 	drv_data->user_data = user_data;
-	drv_data->scale = g_udev_device_get_sysfs_attr_as_double (device, "in_accel_scale");
+	drv_data->scale = SCALE_TO_FF(g_udev_device_get_sysfs_attr_as_double (device, "in_accel_scale"));
 	if (drv_data->scale == 0.0)
 		drv_data->scale = 1.0;