diff --git a/cmd/provisioner-localpv/app/helper_hostpath.go b/cmd/provisioner-localpv/app/helper_hostpath.go
index a30acbf9..0287a6c0 100644
--- a/cmd/provisioner-localpv/app/helper_hostpath.go
+++ b/cmd/provisioner-localpv/app/helper_hostpath.go
@@ -107,7 +107,7 @@ func (pOpts *HelperPodOptions) validateLimits() error {
 		pOpts.hardLimitGrace == "0k" {
 		// Hack: using convertToK() style converstion
 		// TODO: Refactor this section of the code
-		pvcStorageInK := math.Ceil(float64(pOpts.pvcStorage) / 1000)
+		pvcStorageInK := math.Ceil(float64(pOpts.pvcStorage) / 1024)
 		pvcStorageInKString := strconv.FormatFloat(pvcStorageInK, 'f', -1, 64) + "k"
 		pOpts.softLimitGrace, pOpts.hardLimitGrace = pvcStorageInKString, pvcStorageInKString
 		return nil
@@ -153,7 +153,7 @@ func convertToK(limit string, pvcStorage int64) (string, error) {
 	value *= float64(pvcStorage)
 	value /= 100
 	value += float64(pvcStorage)
-	value /= 1000
+	value /= 1024
 
 	value = math.Ceil(value)
 	valueString = strconv.FormatFloat(value, 'f', -1, 64)
diff --git a/cmd/provisioner-localpv/app/helper_test.go b/cmd/provisioner-localpv/app/helper_test.go
index 2469621a..111ac920 100644
--- a/cmd/provisioner-localpv/app/helper_test.go
+++ b/cmd/provisioner-localpv/app/helper_test.go
@@ -55,7 +55,7 @@ func TestConvertToK(t *testing.T) {
 				limit:      "200%",
 				pvcStorage: 5000000,
 			},
-			want:    "10000k",
+			want:    "9766k",
 			wantErr: false,
 		},
 		"Present limit grace with decimal%": {
@@ -63,7 +63,7 @@ func TestConvertToK(t *testing.T) {
 				limit:      ".5%",
 				pvcStorage: 1000,
 			},
-			want:    "2k",
+			want:    "1k", // the final result of limit can't be a float
 			wantErr: false,
 		},
 		"Present limit grace with invalid pattern": {