diff --git a/src/conversions.rs b/src/conversions.rs
index 9f65182..4cc5e1f 100644
--- a/src/conversions.rs
+++ b/src/conversions.rs
@@ -1,5 +1,12 @@
 use crate::units::{Metric, MetricQuantity, NonMetric, NonMetricQuantity};
 
+pub fn convert(from: NonMetricQuantity) -> MetricQuantity {
+	let conversion = get_conversion(from.unit);
+	let amount = from.amount * conversion.to.amount / conversion.from;
+	let unit = conversion.to.unit;
+	MetricQuantity { amount, unit }
+}
+
 struct Conversion {
 	from: f64,
 	to: MetricQuantity,
@@ -46,33 +53,12 @@ fn get_conversion(unit: NonMetric) -> Conversion {
 	}
 }
 
-pub fn convert(from: NonMetricQuantity) -> MetricQuantity {
-	let conversion = get_conversion(from.unit);
-	let amount = from.amount * conversion.to.amount / conversion.from;
-	let unit = conversion.to.unit;
-	MetricQuantity { amount, unit }
-}
-
 #[cfg(test)]
 mod test {
 	use super::*;
 
 	struct Test(NonMetric, f64);
 
-	fn run_tests(tests: &[Test], unit: Metric) {
-		for test in tests {
-			let from = NonMetricQuantity {
-				amount: 1.0,
-				unit: test.0,
-			};
-			let to = MetricQuantity {
-				amount: test.1,
-				unit: unit,
-			};
-			assert_eq!(convert(from), to);
-		}
-	}
-
 	#[test]
 	fn length() {
 		let tests = [
@@ -93,4 +79,18 @@ mod test {
 		];
 		run_tests(&tests, Metric::Gram);
 	}
+
+	fn run_tests(tests: &[Test], unit: Metric) {
+		for test in tests {
+			let from = NonMetricQuantity {
+				amount: 1.0,
+				unit: test.0,
+			};
+			let to = MetricQuantity {
+				amount: test.1,
+				unit: unit,
+			};
+			assert_eq!(convert(from), to);
+		}
+	}
 }