diff --git a/inductor_swg.html b/inductor_swg.html
index 56e106b..a693d76 100644
--- a/inductor_swg.html
+++ b/inductor_swg.html
@@ -20,7 +20,7 @@
                 </div>
                 <div class="sliders">
                     <label for="loop_diameter_slider">&#8960b:</label>
-                    <input type="range" id="loop_diameter_slider" min="0.25" max="2.0" value="1.00" step="0.01">
+                    <input type="range" id="loop_diameter_slider" min="0.20" max="4.0" value="1.00" step="0.01">
                 </div>
                 <div class="sliders">
                     <label for="loop_spacing_slider">c/a:</label>
@@ -28,7 +28,7 @@
                 </div>
                 <div class="sliders">
                     <label for="loop_turns_slider">N:</label>
-                    <input type="range" id="loop_turns_slider" min="2" max="100" value="8.0" step="1.0">
+                    <input type="range" id="loop_turns_slider" min="2" max="150" value="8.0" step="1.0">
                 </div>
                 <div class="sliders">
                     <label for="frequency_slider">f:</label>