diff --git a/src/conversions.rs b/src/conversions.rs
index 71b7d32..421f5fa 100644
--- a/src/conversions.rs
+++ b/src/conversions.rs
@@ -62,7 +62,7 @@ fn get_conversion(unit: NonMetric) -> Conversion {
 		NonMetric::Fahrenheit => Conversion {
 			offset: 32.0,
 			from: 9.0,
-			to: MetricQuantity { amount: 5.0, unit: Metric::Celcius },
+			to: MetricQuantity { amount: 5.0, unit: Metric::Celsius },
 		},
 		// Area
 		NonMetric::SquareInch => Conversion {
@@ -122,14 +122,14 @@ mod test {
 			unit: NonMetric::Fahrenheit,
 		}), MetricQuantity {
 			amount: -40.0,
-			unit: Metric::Celcius,
+			unit: Metric::Celsius,
 		});
 		assert_eq!(convert(NonMetricQuantity {
 			amount: 32.0,
 			unit: NonMetric::Fahrenheit,
 		}), MetricQuantity {
 			amount: 0.0,
-			unit: Metric::Celcius,
+			unit: Metric::Celsius,
 		});
 	}
 
diff --git a/src/format.rs b/src/format.rs
index d19f6cb..e4601f6 100644
--- a/src/format.rs
+++ b/src/format.rs
@@ -83,7 +83,7 @@ fn prefixed_unit(quantity: MetricQuantity) -> PrefixedUnit {
 				return PrefixedUnit(1.0, "g");
 			}
 		}
-		Metric::Celcius => PrefixedUnit(1.0, "°C"),
+		Metric::Celsius => PrefixedUnit(1.0, "°C"),
 		Metric::SquareMetre => {
 			if absolute >= 1000.0 * 1000.0 {
 				return PrefixedUnit(1000.0 * 1000.0, "km²");
@@ -132,7 +132,7 @@ mod test {
 
 		assert_eq!("1 000 °C", &format(MetricQuantity {
 			amount: 1_000.0,
-			unit: Metric::Celcius,
+			unit: Metric::Celsius,
 		}));
 	}
 
@@ -259,18 +259,18 @@ mod test {
 	}
 
 	#[test]
-	fn celcius() {
+	fn celsius() {
 		assert_eq!(PrefixedUnit(1.0, "°C"), prefixed_unit(MetricQuantity {
 			amount: 0.0001,
-			unit: Metric::Celcius,
+			unit: Metric::Celsius,
 		}));
 		assert_eq!(PrefixedUnit(1.0, "°C"), prefixed_unit(MetricQuantity {
 			amount: -1.0,
-			unit: Metric::Celcius,
+			unit: Metric::Celsius,
 		}));
 		assert_eq!(PrefixedUnit(1.0, "°C"), prefixed_unit(MetricQuantity {
 			amount: 1_000.0,
-			unit: Metric::Celcius,
+			unit: Metric::Celsius,
 		}));
 	}
 
diff --git a/src/units.rs b/src/units.rs
index 03c573b..cdd41fd 100644
--- a/src/units.rs
+++ b/src/units.rs
@@ -2,7 +2,7 @@
 pub enum Metric {
 	Metre,
 	Gram,
-	Celcius,
+	Celsius,
 	SquareMetre,
 }