diff --git a/cmd/zdb/zdb.c b/cmd/zdb/zdb.c
index 607b83a28..68c9696a8 100644
--- a/cmd/zdb/zdb.c
+++ b/cmd/zdb/zdb.c
@@ -2144,7 +2144,8 @@ dump_ddt_object(ddt_t *ddt, ddt_type_t type, ddt_class_t class)
 
 	(void) printf("%s: object=%llu\n", name,
 	    (u_longlong_t)ddt->ddt_object[type][class]);
-	zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]);
+	zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class],
+	    dump_opt['P'] > 0);
 
 	if (dump_opt['D'] < 4)
 		return;
@@ -2221,7 +2222,7 @@ dump_all_ddts(spa_t *spa)
 	if (dump_opt['D'] > 1) {
 		(void) printf("DDT histogram (aggregated over all DDTs):\n");
 		ddt_get_dedup_histogram(spa, &ddh_total);
-		zpool_dump_ddt(&dds_total, &ddh_total);
+		zpool_dump_ddt(&dds_total, &ddh_total, dump_opt['P'] > 0);
 	}
 
 	dump_dedup_ratio(&dds_total);
@@ -8118,7 +8119,7 @@ dump_simulated_ddt(spa_t *spa)
 
 	(void) printf("Simulated DDT histogram:\n");
 
-	zpool_dump_ddt(&dds_total, &ddh_total);
+	zpool_dump_ddt(&dds_total, &ddh_total, dump_opt['P'] > 0);
 
 	dump_dedup_ratio(&dds_total);
 }
diff --git a/cmd/zpool/zpool_main.c b/cmd/zpool/zpool_main.c
index abbdc4896..eb76a2135 100644
--- a/cmd/zpool/zpool_main.c
+++ b/cmd/zpool/zpool_main.c
@@ -10495,7 +10495,7 @@ print_dedup_stats(zpool_handle_t *zhp, nvlist_t *config, boolean_t literal)
 	    (uint64_t **)&dds, &c) == 0);
 	verify(nvlist_lookup_uint64_array(config, ZPOOL_CONFIG_DDT_HISTOGRAM,
 	    (uint64_t **)&ddh, &c) == 0);
-	zpool_dump_ddt(dds, ddh);
+	zpool_dump_ddt(dds, ddh, literal);
 }
 
 #define	ST_SIZE	4096
diff --git a/include/libzutil.h b/include/libzutil.h
index 59599b0f6..2061a8454 100644
--- a/include/libzutil.h
+++ b/include/libzutil.h
@@ -167,7 +167,8 @@ _LIBZUTIL_H void zfs_niceraw(uint64_t, char *, size_t);
 #define	nicenum(num, buf, size)	zfs_nicenum(num, buf, size)
 #define	NN_NUMBUF_SZ	(6)
 
-_LIBZUTIL_H void zpool_dump_ddt(const ddt_stat_t *, const ddt_histogram_t *);
+_LIBZUTIL_H void zpool_dump_ddt(const ddt_stat_t *, const ddt_histogram_t *,
+    boolean_t parsable);
 _LIBZUTIL_H int zpool_history_unpack(char *, uint64_t, uint64_t *, nvlist_t ***,
     uint_t *);
 _LIBZUTIL_H void fsleep(float sec);
diff --git a/lib/libzfs/libzfs.abi b/lib/libzfs/libzfs.abi
index 4e3baee52..bed2c7979 100644
--- a/lib/libzfs/libzfs.abi
+++ b/lib/libzfs/libzfs.abi
@@ -9871,6 +9871,7 @@
     <function-decl name='zpool_dump_ddt' mangled-name='zpool_dump_ddt' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_dump_ddt'>
       <parameter type-id='dfe59052' name='dds_total'/>
       <parameter type-id='932720f8' name='ddh'/>
+      <parameter type-id='c19b74c3' name='parsable'/>
       <return type-id='48b5725f'/>
     </function-decl>
     <function-decl name='fsleep' mangled-name='fsleep' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fsleep'>
diff --git a/lib/libzutil/zutil_pool.c b/lib/libzutil/zutil_pool.c
index 2aacfa53b..4d52be7ce 100644
--- a/lib/libzutil/zutil_pool.c
+++ b/lib/libzutil/zutil_pool.c
@@ -34,11 +34,16 @@
 #include <libzutil.h>
 
 static void
-dump_ddt_stat(const ddt_stat_t *dds, int h)
+dump_ddt_stat(const ddt_stat_t *dds, int h, boolean_t parsable)
 {
-	char refcnt[6];
-	char blocks[6], lsize[6], psize[6], dsize[6];
-	char ref_blocks[6], ref_lsize[6], ref_psize[6], ref_dsize[6];
+	char refcnt[32];
+	char blocks[32], lsize[32], psize[32], dsize[32];
+	char ref_blocks[32], ref_lsize[32], ref_psize[32], ref_dsize[32];
+
+	enum zfs_nicenum_format count_format = parsable ?
+	    ZFS_NICENUM_RAW : ZFS_NICENUM_1024;
+	enum zfs_nicenum_format byte_format = parsable ?
+	    ZFS_NICENUM_RAW : ZFS_NICENUM_BYTES;
 
 	if (dds == NULL || dds->dds_blocks == 0)
 		return;
@@ -46,16 +51,26 @@ dump_ddt_stat(const ddt_stat_t *dds, int h)
 	if (h == -1)
 		(void) strcpy(refcnt, "Total");
 	else
-		zfs_nicenum(1ULL << h, refcnt, sizeof (refcnt));
+		zfs_nicenum_format(1ULL << h, refcnt, sizeof (refcnt),
+		    count_format);
 
-	zfs_nicenum(dds->dds_blocks, blocks, sizeof (blocks));
-	zfs_nicebytes(dds->dds_lsize, lsize, sizeof (lsize));
-	zfs_nicebytes(dds->dds_psize, psize, sizeof (psize));
-	zfs_nicebytes(dds->dds_dsize, dsize, sizeof (dsize));
-	zfs_nicenum(dds->dds_ref_blocks, ref_blocks, sizeof (ref_blocks));
-	zfs_nicebytes(dds->dds_ref_lsize, ref_lsize, sizeof (ref_lsize));
-	zfs_nicebytes(dds->dds_ref_psize, ref_psize, sizeof (ref_psize));
-	zfs_nicebytes(dds->dds_ref_dsize, ref_dsize, sizeof (ref_dsize));
+
+	zfs_nicenum_format(dds->dds_blocks, blocks, sizeof (blocks),
+	    count_format);
+	zfs_nicenum_format(dds->dds_lsize, lsize, sizeof (lsize),
+	    byte_format);
+	zfs_nicenum_format(dds->dds_psize, psize, sizeof (psize),
+	    byte_format);
+	zfs_nicenum_format(dds->dds_dsize, dsize, sizeof (dsize),
+	    byte_format);
+	zfs_nicenum_format(dds->dds_ref_blocks, ref_blocks,
+	    sizeof (ref_blocks), count_format);
+	zfs_nicenum_format(dds->dds_ref_lsize, ref_lsize,
+	    sizeof (ref_lsize), byte_format);
+	zfs_nicenum_format(dds->dds_ref_psize, ref_psize,
+	    sizeof (ref_psize), byte_format);
+	zfs_nicenum_format(dds->dds_ref_dsize, ref_dsize,
+	    sizeof (ref_dsize), byte_format);
 
 	(void) printf("%6s   %6s   %5s   %5s   %5s   %6s   %5s   %5s   %5s\n",
 	    refcnt,
@@ -67,7 +82,8 @@ dump_ddt_stat(const ddt_stat_t *dds, int h)
  * Print the DDT histogram and the column totals.
  */
 void
-zpool_dump_ddt(const ddt_stat_t *dds_total, const ddt_histogram_t *ddh)
+zpool_dump_ddt(const ddt_stat_t *dds_total, const ddt_histogram_t *ddh,
+    boolean_t parsable)
 {
 	int h;
 
@@ -91,9 +107,9 @@ zpool_dump_ddt(const ddt_stat_t *dds_total, const ddt_histogram_t *ddh)
 	    "------", "-----", "-----", "-----");
 
 	for (h = 0; h < 64; h++)
-		dump_ddt_stat(&ddh->ddh_stat[h], h);
+		dump_ddt_stat(&ddh->ddh_stat[h], h, parsable);
 
-	dump_ddt_stat(dds_total, -1);
+	dump_ddt_stat(dds_total, -1, parsable);
 
 	(void) printf("\n");
 }