diff --git a/lib/properties/volume.dart b/lib/properties/volume.dart
index 3105872..f94914d 100644
--- a/lib/properties/volume.dart
+++ b/lib/properties/volume.dart
@@ -14,6 +14,7 @@ enum VOLUME {
   usPints,
   milliliters,
   tablespoonsUs,
+  teaspoonsUs,
   australianTablespoons,
   cups,
   cubicCentimeters,
@@ -57,6 +58,7 @@ class Volume extends DoubleProperty<VOLUME> {
             VOLUME.usPints: 'US pt',
             VOLUME.milliliters: 'ml',
             VOLUME.tablespoonsUs: 'tbsp.',
+            VOLUME.teaspoonsUs: 'tsp.',
             VOLUME.australianTablespoons: 'tbsp.',
             VOLUME.cups: 'cup',
             VOLUME.cubicCentimeters: 'cm³',
@@ -134,6 +136,10 @@ class Volume extends DoubleProperty<VOLUME> {
                           coefficientProduct: 14.8,
                           name: VOLUME.tablespoonsUs,
                         ),
+                        ConversionNode(
+                          coefficientProduct: 4.92892,
+                          name: VOLUME.teaspoonsUs,
+                        ),
                         ConversionNode(
                           coefficientProduct: 20.0,
                           name: VOLUME.australianTablespoons,
@@ -198,6 +204,7 @@ class Volume extends DoubleProperty<VOLUME> {
   Unit get usPints => getUnit(VOLUME.usPints);
   Unit get milliliters => getUnit(VOLUME.milliliters);
   Unit get tablespoonsUs => getUnit(VOLUME.tablespoonsUs);
+  Unit get teaspoonsUs => getUnit(VOLUME.teaspoonsUs);
   Unit get australianTablespoons => getUnit(VOLUME.australianTablespoons);
   Unit get cups => getUnit(VOLUME.cups);
   Unit get cubicCentimeters => getUnit(VOLUME.cubicCentimeters);
diff --git a/test/conversion_test.dart b/test/conversion_test.dart
index b6bb885..3f80c2e 100644
--- a/test/conversion_test.dart
+++ b/test/conversion_test.dart
@@ -481,6 +481,7 @@ void main() {
       VOLUME.usPints: 2113.3764188652,
       VOLUME.milliliters: 1e6,
       VOLUME.tablespoonsUs: 67567.567567568,
+      VOLUME.teaspoonsUs: 202884.20181297325,
       VOLUME.australianTablespoons: 50000,
       VOLUME.cups: 4166.6666666667,
       VOLUME.cubicCentimeters: 1e6,
diff --git a/test/getters_test.dart b/test/getters_test.dart
index 5cc3fce..b8e4cc4 100644
--- a/test/getters_test.dart
+++ b/test/getters_test.dart
@@ -489,6 +489,7 @@ void main() {
     runGetterTest(property.milliliters, property.getUnit(VOLUME.milliliters));
     runGetterTest(
         property.tablespoonsUs, property.getUnit(VOLUME.tablespoonsUs));
+    runGetterTest(property.teaspoonsUs, property.getUnit(VOLUME.teaspoonsUs));
     runGetterTest(property.australianTablespoons,
         property.getUnit(VOLUME.australianTablespoons));
     runGetterTest(property.cups, property.getUnit(VOLUME.cups));