diff --git a/inc/qcbor/UsefulBuf.h b/inc/qcbor/UsefulBuf.h
index 5f53044..b322e39 100644
--- a/inc/qcbor/UsefulBuf.h
+++ b/inc/qcbor/UsefulBuf.h
@@ -1,6 +1,6 @@
 /* =========================================================================
  * Copyright (c) 2016-2018, The Linux Foundation.
- * Copyright (c) 2018-2022, Laurence Lundblade.
+ * Copyright (c) 2018-2024, Laurence Lundblade.
  * Copyright (c) 2021, Arm Limited. All rights reserved.
  * All rights reserved.
  *
@@ -43,6 +43,7 @@
 
  when         who             what, where, why
  --------     ----            --------------------------------------------------
+ 10/05/2024   llundblade      Add Xxx_OffsetToPointer.
  19/12/2022   llundblade      Document that adding empty data is allowed.
  4/11/2022    llundblade      Add GetOutPlace and Advance to UsefulOutBuf.
  9/21/2021    llundbla        Clarify UsefulOutBuf size calculation mode
@@ -647,16 +648,27 @@
 
 
 /**
- @brief Convert a pointer to an offset with bounds checking.
-
- @param[in] UB  Pointer to the UsefulInputBuf.
- @param[in] p   Pointer to convert to offset.
-
- @return SIZE_MAX if @c p is out of range, the byte offset if not.
+ * @brief Convert a pointer to an offset with bounds checking.
+ *
+ * @param[in] UB  A UsefulBuf.
+ * @param[in] p   Pointer to convert to offset.
+ *
+ * @return SIZE_MAX if @c p is out of range, the byte offset if not.
 */
 static inline size_t UsefulBuf_PointerToOffset(UsefulBufC UB, const void *p);
 
 
+/**
+ * @brief Convert an offset to a pointer with bounds checking.
+ *
+ * @param[in] UB       A UsefulBuf.
+ * @param[in] uOffset  Offset in @c pUInBuf.
+ *
+ * @return @c NULL if @c uOffset is out of range, a pointer into the buffer if not.
+ */
+static inline const void *UsefulBuf_OffsetToPointer(UsefulBufC UB, size_t uOffset);
+
+
 #ifndef USEFULBUF_DISABLE_DEPRECATED
 /** Deprecated macro; use @ref UsefulBuf_FROM_SZ_LITERAL instead */
 #define SZLiteralToUsefulBufC(szString)  UsefulBuf_FROM_SZ_LITERAL(szString)
@@ -1491,7 +1503,18 @@
  *
  * @return SIZE_MAX if @c p is out of range, the byte offset if not.
  */
-static inline size_t UsefulInputBuf_PointerToOffset(UsefulInputBuf *pUInBuf, const void *p);
+static size_t UsefulInputBuf_PointerToOffset(UsefulInputBuf *pUInBuf, const void *p);
+
+
+/**
+ * @brief Convert an offset to a pointer with bounds checking.
+ *
+ * @param[in] pUInBuf  Pointer to the @ref UsefulInputBuf.
+ * @param[in] uOffset  Offset in @c pUInBuf.
+ *
+ * @return @c NULL if @c uOffset is out of range, a pointer into the buffer if not.
+ */
+static const void *UsefulInputBuf_OffsetToPointer(UsefulInputBuf *pUInBuf, size_t uOffset);
 
 
 /**
@@ -1857,6 +1880,18 @@
 }
 
 
+static inline const void *UsefulBuf_OffsetToPointer(UsefulBufC UB, size_t uOffset)
+{
+   if(UsefulBuf_IsNULLC(UB) || uOffset >= UB.len) {
+      return NULL;
+   }
+
+   return (const uint8_t *)UB.ptr + uOffset;
+}
+
+
+
+
 #ifndef USEFULBUF_DISABLE_ALL_FLOAT
 static inline uint32_t UsefulBufUtil_CopyFloatToUint32(float f)
 {
@@ -2263,6 +2298,12 @@
 }
 
 
+static inline const void *UsefulInputBuf_OffsetToPointer(UsefulInputBuf *pUInBuf, size_t uOffset)
+ {
+    return UsefulBuf_OffsetToPointer(pUInBuf->UB, uOffset);
+ }
+
+
 static inline UsefulBufC UsefulInputBuf_GetUsefulBuf(UsefulInputBuf *pMe, size_t uNum)
 {
    const void *pResult = UsefulInputBuf_GetBytes(pMe, uNum);