diff --git a/magloop.html b/magloop.html
index 4410e7a..aafce88 100644
--- a/magloop.html
+++ b/magloop.html
@@ -243,7 +243,9 @@
                 perimeter = getPerimeter();
                 loop_capacitance = ((loop_turns > 1) && (loop_mode == "series")) ? multiloopCapacitance() : (2.69e-12 * perimeter);
                 srf = calculateSRF();
-                conductor_length = ((((perimeter* loop_turns) ** 2.0) + ((loop_spacing_slider.value * conductor_diameter_slider.value * 1e-3 * loop_turns) ** 2.0)) ** 0.5);
+                conductor_length = (loop_turns_slider.value > 1) 
+                    ? ((((perimeter* loop_turns) ** 2.0) + ((loop_spacing_slider.value * conductor_diameter_slider.value * 1e-3 * loop_turns) ** 2.0)) ** 0.5)
+                    : (perimeter* loop_turns);
                 R_ext = external_losses_slider.value * 0.001;
             }