diff --git a/core-api/src/main/java/com/optimizely/ab/Optimizely.java b/core-api/src/main/java/com/optimizely/ab/Optimizely.java
index a70dbf26b..2df733a17 100644
--- a/core-api/src/main/java/com/optimizely/ab/Optimizely.java
+++ b/core-api/src/main/java/com/optimizely/ab/Optimizely.java
@@ -354,24 +354,24 @@ private void track(@Nonnull String eventName,
         return null;
     }
 
-    public @Nullable Float getVariableFloat(@Nonnull String variableKey,
-                                            @Nonnull String userId,
-                                            boolean activateExperiment) throws UnknownLiveVariableException {
-        return getVariableFloat(variableKey, userId, Collections.<String, String>emptyMap(), activateExperiment);
+    public @Nullable Double getVariableDouble(@Nonnull String variableKey,
+                                              @Nonnull String userId,
+                                              boolean activateExperiment) throws UnknownLiveVariableException {
+        return getVariableDouble(variableKey, userId, Collections.<String, String>emptyMap(), activateExperiment);
     }
 
-    public @Nullable Float getVariableFloat(@Nonnull String variableKey,
-                                            @Nonnull String userId,
-                                            @Nonnull Map<String, String> attributes,
-                                            boolean activateExperiment)
+    public @Nullable Double getVariableDouble(@Nonnull String variableKey,
+                                              @Nonnull String userId,
+                                              @Nonnull Map<String, String> attributes,
+                                              boolean activateExperiment)
             throws UnknownLiveVariableException {
 
         String variableValueString = getVariableString(variableKey, userId, attributes, activateExperiment);
         if (variableValueString != null) {
             try {
-                return Float.parseFloat(variableValueString);
+                return Double.parseDouble(variableValueString);
             } catch (NumberFormatException e) {
-                logger.error("Variable value \"{}\" for live variable \"{}\" is not a float.", variableValueString,
+                logger.error("Variable value \"{}\" for live variable \"{}\" is not a double.", variableValueString,
                              variableKey);
             }
         }
diff --git a/core-api/src/main/java/com/optimizely/ab/config/LiveVariable.java b/core-api/src/main/java/com/optimizely/ab/config/LiveVariable.java
index a24ef9baf..0937e1ecd 100644
--- a/core-api/src/main/java/com/optimizely/ab/config/LiveVariable.java
+++ b/core-api/src/main/java/com/optimizely/ab/config/LiveVariable.java
@@ -69,8 +69,8 @@ public enum VariableType {
         @SerializedName("string")
         STRING ("string"),
 
-        @SerializedName("float")
-        FLOAT ("float");
+        @SerializedName("double")
+        DOUBLE ("double");
 
         private final String variableType;
 
diff --git a/core-api/src/test/java/com/optimizely/ab/OptimizelyTestV3.java b/core-api/src/test/java/com/optimizely/ab/OptimizelyTestV3.java
index 71c85cf17..10269f178 100644
--- a/core-api/src/test/java/com/optimizely/ab/OptimizelyTestV3.java
+++ b/core-api/src/test/java/com/optimizely/ab/OptimizelyTestV3.java
@@ -1116,11 +1116,11 @@ public void getVariableBoolean() throws Exception {
     }
 
     /**
-     * Verify that {@link Optimizely#getVariableFloat(String, String, Map, boolean)} returns a float live variable
+     * Verify that {@link Optimizely#getVariableDouble(String, String, Map, boolean)} returns a double live variable
      * value when an proper variable key is provided and dispatches an impression when activateExperiment is true.
      */
     @Test
-    public void getVariableFloat() throws Exception {
+    public void getVariableDouble() throws Exception {
         String datafile = validConfigJsonV3();
         ProjectConfig projectConfig = validProjectConfigV3();
 
@@ -1135,9 +1135,9 @@ public void getVariableFloat() throws Exception {
             .withBucketing(mockBucketer)
             .build();
 
-        assertThat(optimizely.getVariableFloat("float_variable", "userId",
+        assertThat(optimizely.getVariableDouble("double_variable", "userId",
                                                Collections.singletonMap("browser_type", "chrome"), true),
-                   is(5.3f));
+                   is(5.3));
         verify(mockEventHandler).dispatchEvent(any(LogEvent.class));
     }
 
diff --git a/core-api/src/test/java/com/optimizely/ab/config/ProjectConfigTestUtils.java b/core-api/src/test/java/com/optimizely/ab/config/ProjectConfigTestUtils.java
index 3f678eda0..e645e4971 100644
--- a/core-api/src/test/java/com/optimizely/ab/config/ProjectConfigTestUtils.java
+++ b/core-api/src/test/java/com/optimizely/ab/config/ProjectConfigTestUtils.java
@@ -424,8 +424,8 @@ private static ProjectConfig generateValidProjectConfigV3() {
                              LiveVariable.VariableType.INTEGER),
             new LiveVariable("3", "string_variable", "string_live_variable", LiveVariable.VariableStatus.ACTIVE,
                              LiveVariable.VariableType.STRING),
-            new LiveVariable("4", "float_variable", "13.37", LiveVariable.VariableStatus.ACTIVE,
-                             LiveVariable.VariableType.FLOAT),
+            new LiveVariable("4", "double_variable", "13.37", LiveVariable.VariableStatus.ACTIVE,
+                             LiveVariable.VariableType.DOUBLE),
             new LiveVariable("5", "archived_variable", "True", LiveVariable.VariableStatus.ARCHIVED,
                              LiveVariable.VariableType.BOOLEAN),
             new LiveVariable("6", "etag1_variable", "False", LiveVariable.VariableStatus.ACTIVE,
diff --git a/core-api/src/test/resources/config/valid-project-config-v3.json b/core-api/src/test/resources/config/valid-project-config-v3.json
index a12dc22e7..14ec9e0c9 100644
--- a/core-api/src/test/resources/config/valid-project-config-v3.json
+++ b/core-api/src/test/resources/config/valid-project-config-v3.json
@@ -265,8 +265,8 @@
     },
     {
       "id": "4",
-      "key": "float_variable",
-      "type": "float",
+      "key": "double_variable",
+      "type": "double",
       "defaultValue": "13.37",
       "status": "active"
     },