diff --git a/chasemapper/config.py b/chasemapper/config.py
index 3736f64..b335960 100644
--- a/chasemapper/config.py
+++ b/chasemapper/config.py
@@ -145,10 +145,10 @@ def parse_config_file(filename):
         # Unit Selection
 
 	chase_config['unitselection'] = config.get('units', 'unitselection', fallback='metric')
+	if chase_config['unitselection'] != "imperial":
+		chase_config['unitselection'] = 'metric' #unless imperial is explicitly requested do metric
 	chase_config['switch_miles_feet'] = config.get('units', 'switch_miles_feet', fallback = '400')
 
-
-
 	for i in range(1,_profile_count+1):
 		_profile_section = "profile_%d" % i
 		try:
diff --git a/static/js/car.js b/static/js/car.js
index e756aef..cf9138e 100644
--- a/static/js/car.js
+++ b/static/js/car.js
@@ -29,6 +29,7 @@ function createRangeRings(position){
 
 	var _radius = _ring_spacing;
 	var _color = "#FF0000";
+        if (chase_config['unitselection'] == "imperial") { _radius = _ring_spacing*0.3048;}
 
 	if(_ring_color == "red"){
 		_color = "#FF0000";
@@ -51,8 +52,8 @@ function createRangeRings(position){
 			opacity: 0.7
 		}).addTo(map);
 		range_rings.push(_ring);
-
-		_radius += _ring_spacing;
+                if (chase_config['unitselection'] == "metric")   { _radius += _ring_spacing;}
+                if (chase_config['unitselection'] == "imperial") { _radius += _ring_spacing*0.3048;}
 	}
 
 	range_rings_on = true;
@@ -107,4 +108,4 @@ function updateRangeRings(){
 
 	}
 
-}
\ No newline at end of file
+}
diff --git a/templates/index.html b/templates/index.html
index 540105e..3e27e0c 100644
--- a/templates/index.html
+++ b/templates/index.html
@@ -280,6 +280,12 @@
             if (chase_config['unitselection'] == "imperial") { L.control.scale({imperial: true, metric: false}).addTo(map) ;}
             if (chase_config['unitselection'] == "metric") { L.control.scale({imperial: false, metric: true}).addTo(map) ;}
 
+
+
+            // Units for rings
+            if (chase_config['unitselection'] == "imperial") { document.getElementById("ring_spacing").innerHTML = "Ring Spacing (ft)";}
+            if (chase_config['unitselection'] == "metric")   { document.getElementById("ring_spacing").innerHTML = "Ring Spacing (m)";}
+
             // Add sidebar to map (where all of our controls are!)
             var sidebar = L.control.sidebar('sidebar').addTo(map);
 
@@ -758,7 +764,7 @@
                     <b>Ring Qty</b><input type="text" class="paramEntry" id="ringQuantity" value="5"><br/>
                 </div>
                 <div class="paramRow">
-                    <b>Ring Spacing (m)</b><input type="text" class="paramEntry" id="ringSpacing" value="1000"><br/>
+                    <b> <p><p id="ring_spacing">Ring Spacing (m)</p></p></b><input type="text" class="paramEntry" id="ringSpacing" value="1000"><br/>
                 </div>
                 <div class="paramRow">
                     <b>Ring Weight (px)</b><input type="text" class="paramEntry" id="ringWeight" value="2"><br/>