diff --git a/furlong.rb b/furlong.rb
index 9b7e2b4..6debcf8 100644
--- a/furlong.rb
+++ b/furlong.rb
@@ -4,4 +4,11 @@ class Furlong
 	def miles_to_kilometers(miles)
 		miles * KM_PER_MILE
 	end
+end
+
+class Reverse_Furlong
+	FURLONG_PER_KM = 0.201168
+	def furlong_to_kilometers(km)
+		km * FURLONG_PER_KM
+	end
 end
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diff --git a/furlong_spec.rb b/furlong_spec.rb
index 053ebfd..c8d875a 100644
--- a/furlong_spec.rb
+++ b/furlong_spec.rb
@@ -12,4 +12,14 @@
 	it "converts a marathon: 26.219 miles to 42.194988 km" do
 		subject.miles_to_kilometers(26.219).should be_within(0.001).of(42.194988)
 	end
+end
+
+describe Reverse_Furlong do
+
+	let(:calculator) {Furlong.new}
+	
+	it "converts 1 furlong to 0.201168 kilometers" do
+		subject.furlong_to_kilometers(1).should be_within(0.0001).of(0.201168)
+	end
+	
 end
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