diff --git a/addons/point_of_sale/static/src/js/screens.js b/addons/point_of_sale/static/src/js/screens.js
index c58e7d860a0..71fdb3a5609 100644
--- a/addons/point_of_sale/static/src/js/screens.js
+++ b/addons/point_of_sale/static/src/js/screens.js
@@ -19,6 +19,8 @@ function openerp_pos_screens(instance, module){ //module is instance.point_of_sa
     var QWeb = instance.web.qweb,
     _t = instance.web._t;
 
+    var round_pr = instance.web.round_precision
+
     module.ScreenSelector = instance.web.Class.extend({
         init: function(options){
             this.pos = options.pos;
@@ -564,7 +566,20 @@ function openerp_pos_screens(instance, module){ //module is instance.point_of_sa
             this.$('.js-weight').text(this.get_product_weight_string());
         },
         get_product_weight_string: function(){
-            return (this.weight || 0).toFixed(3) + ' Kg';
+            var product = this.get_product();
+            var defaultstr = (this.weight || 0).toFixed(3) + ' Kg';
+            if(!product || !this.pos){
+                return defaultstr;
+            }
+            var unit_id = product.uos_id || product.uom_id;
+            if(!unit_id){
+                return defaultstr;
+            }
+            var unit = this.pos.units_by_id[unit_id[0]];
+            var weight = round_pr(this.weight || 0, unit.rounding);
+            var weightstr = weight.toFixed(Math.ceil(Math.log(1.0/unit.rounding) / Math.log(10) ));
+                weightstr += ' Kg';
+            return weightstr;
         },
         get_product_image_url: function(){
             var product = this.get_product();
diff --git a/addons/product/product_data.xml b/addons/product/product_data.xml
index c1c0a577092..85462bb851d 100644
--- a/addons/product/product_data.xml
+++ b/addons/product/product_data.xml
@@ -28,6 +28,35 @@
             <field name="name">Volume</field>
         </record>
 
+        <!--
+             Precisions
+        -->
+
+        <record forcecreate="True" id="decimal_price" model="decimal.precision">
+            <field name="name">Product Price</field>
+            <field name="digits">2</field>
+        </record>
+        <record forcecreate="True" id="decimal_discount" model="decimal.precision">
+            <field name="name">Discount</field>
+            <field name="digits">2</field>
+        </record>
+        <record forcecreate="True" id="decimal_account" model="decimal.precision">
+            <field name="name">Account</field>
+            <field name="digits">2</field>
+        </record>
+        <record forcecreate="True" id="decimal_stock_weight" model="decimal.precision">
+            <field name="name">Stock Weight</field>
+            <field name="digits">2</field>
+        </record>
+        <record forcecreate="True" id="decimal_product_uom" model="decimal.precision">
+            <field name="name">Product Unit of Measure</field>
+            <field name="digits" eval="3"/>
+        </record>
+        <record forcecreate="True" id="decimal_product_uos" model="decimal.precision">
+            <field name="name">Product UoS</field>
+            <field name="digits" eval="3"/>
+        </record>
+
         <!--
             Resource: product.uom
         -->
@@ -47,6 +76,7 @@
             <field name="category_id" ref="product_uom_categ_kgm"/>
             <field name="name">kg</field>
             <field name="factor" eval="1"/>
+            <field name="rounding" eval="0.001"/>
         </record>
         <record id="product_uom_gram" model="product.uom">
             <field name="category_id" ref="product_uom_categ_kgm"/>
@@ -211,30 +241,6 @@ parameter) will see those record just disappear.
             <field eval="'product.pricelist,'+str(ref('list0'))" name="value"/>
         </record>
 
-        <record forcecreate="True" id="decimal_price" model="decimal.precision">
-            <field name="name">Product Price</field>
-            <field name="digits">2</field>
-        </record>
-        <record forcecreate="True" id="decimal_discount" model="decimal.precision">
-            <field name="name">Discount</field>
-            <field name="digits">2</field>
-        </record>
-        <record forcecreate="True" id="decimal_account" model="decimal.precision">
-            <field name="name">Account</field>
-            <field name="digits">2</field>
-        </record>
-        <record forcecreate="True" id="decimal_stock_weight" model="decimal.precision">
-            <field name="name">Stock Weight</field>
-            <field name="digits">2</field>
-        </record>
-        <record forcecreate="True" id="decimal_product_uom" model="decimal.precision">
-            <field name="name">Product Unit of Measure</field>
-            <field name="digits" eval="3"/>
-        </record>
-        <record forcecreate="True" id="decimal_product_uos" model="decimal.precision">
-            <field name="name">Product UoS</field>
-            <field name="digits" eval="3"/>
-        </record>
 
         <!--
         Product