diff --git a/.chronus/changes/fix-encode-duration-tests-2025-11-25-04-18-59.md b/.chronus/changes/fix-encode-duration-tests-2025-11-25-04-18-59.md
new file mode 100644
index 00000000000..16a7b59f680
--- /dev/null
+++ b/.chronus/changes/fix-encode-duration-tests-2025-11-25-04-18-59.md
@@ -0,0 +1,7 @@
+---
+changeKind: fix
+packages:
+  - "@typespec/http-specs"
+---
+
+Fix EncodeDuration tests with larger unit durations being too strict by making query parameter expectations match input types as numbers instead of strings
diff --git a/packages/http-specs/specs/encode/duration/mockapi.ts b/packages/http-specs/specs/encode/duration/mockapi.ts
index 157858bc68c..e77b3f4ab90 100644
--- a/packages/http-specs/specs/encode/duration/mockapi.ts
+++ b/packages/http-specs/specs/encode/duration/mockapi.ts
@@ -229,9 +229,9 @@ Scenarios.Encode_Duration_Query_int32SecondsLargerUnit = createQueryServerTests(
 Scenarios.Encode_Duration_Query_floatSecondsLargerUnit = createQueryServerTests(
   "/encode/duration/query/float-seconds-larger-unit",
   {
-    input: 150.0,
+    input: 150,
   },
-  "150.0",
+  150,
 );
 Scenarios.Encode_Duration_Query_int32MillisecondsLargerUnit = createQueryServerTests(
   "/encode/duration/query/int32-milliseconds-larger-unit",
@@ -243,9 +243,9 @@ Scenarios.Encode_Duration_Query_int32MillisecondsLargerUnit = createQueryServerT
 Scenarios.Encode_Duration_Query_floatMillisecondsLargerUnit = createQueryServerTests(
   "/encode/duration/query/float-milliseconds-larger-unit",
   {
-    input: 210000.0,
+    input: 210000,
   },
-  "210000.0",
+  210000,
 );
 
 function createHeaderServerTests(uri: string, headersData: any, value: any) {
@@ -343,9 +343,9 @@ Scenarios.Encode_Duration_Header_int32SecondsLargerUnit = createHeaderServerTest
 Scenarios.Encode_Duration_Header_floatSecondsLargerUnit = createHeaderServerTests(
   "/encode/duration/header/float-seconds-larger-unit",
   {
-    duration: "150.0",
+    duration: "150",
   },
-  "150.0",
+  "150",
 );
 Scenarios.Encode_Duration_Header_int32MillisecondsLargerUnit = createHeaderServerTests(
   "/encode/duration/header/int32-milliseconds-larger-unit",
@@ -357,7 +357,7 @@ Scenarios.Encode_Duration_Header_int32MillisecondsLargerUnit = createHeaderServe
 Scenarios.Encode_Duration_Header_floatMillisecondsLargerUnit = createHeaderServerTests(
   "/encode/duration/header/float-milliseconds-larger-unit",
   {
-    duration: "210000.0",
+    duration: "210000",
   },
-  "210000.0",
+  "210000",
 );