diff --git a/collector/pg_stat_user_tables.go b/collector/pg_stat_user_tables.go
index 949a0ea2b..67467d773 100644
--- a/collector/pg_stat_user_tables.go
+++ b/collector/pg_stat_user_tables.go
@@ -36,6 +36,18 @@ func NewPGStatUserTablesCollector(config collectorConfig) (Collector, error) {
 }
 
 var (
+	statUserTablesRelPages = prometheus.NewDesc(
+		prometheus.BuildFQName(namespace, userTableSubsystem, "relpages"),
+		"Estimated number of live pages",
+		[]string{"datname", "schemaname", "relname"},
+		prometheus.Labels{},
+	)
+	statUserTablesRelSize = prometheus.NewDesc(
+		prometheus.BuildFQName(namespace, userTableSubsystem, "relsize"),
+		"Estimated table size",
+		[]string{"datname", "schemaname", "relname"},
+		prometheus.Labels{},
+	)
 	statUserTablesSeqScan = prometheus.NewDesc(
 		prometheus.BuildFQName(namespace, userTableSubsystem, "seq_scan"),
 		"Number of sequential scans initiated on this table",
@@ -154,7 +166,9 @@ var (
 	statUserTablesQuery = `SELECT
 		current_database() datname,
 		schemaname,
-		relname,
+		pg_stat_user_tables.relname,
+		relpages,
+		pg_relation_size(pg_stat_user_tables.relname::text::regclass) AS relsize,
 		seq_scan,
 		seq_tup_read,
 		idx_scan,
@@ -175,7 +189,9 @@ var (
 		analyze_count,
 		autoanalyze_count
 	FROM
-		pg_stat_user_tables`
+		pg_stat_user_tables
+	JOIN
+		pg_class ON pg_stat_user_tables.relid = pg_class.oid`
 )
 
 func (c *PGStatUserTablesCollector) Update(ctx context.Context, instance *instance, ch chan<- prometheus.Metric) error {
@@ -190,11 +206,11 @@ func (c *PGStatUserTablesCollector) Update(ctx context.Context, instance *instan
 
 	for rows.Next() {
 		var datname, schemaname, relname sql.NullString
-		var seqScan, seqTupRead, idxScan, idxTupFetch, nTupIns, nTupUpd, nTupDel, nTupHotUpd, nLiveTup, nDeadTup,
+		var relPages, relSize, seqScan, seqTupRead, idxScan, idxTupFetch, nTupIns, nTupUpd, nTupDel, nTupHotUpd, nLiveTup, nDeadTup,
 			nModSinceAnalyze, vacuumCount, autovacuumCount, analyzeCount, autoanalyzeCount sql.NullInt64
 		var lastVacuum, lastAutovacuum, lastAnalyze, lastAutoanalyze sql.NullTime
 
-		if err := rows.Scan(&datname, &schemaname, &relname, &seqScan, &seqTupRead, &idxScan, &idxTupFetch, &nTupIns, &nTupUpd, &nTupDel, &nTupHotUpd, &nLiveTup, &nDeadTup, &nModSinceAnalyze, &lastVacuum, &lastAutovacuum, &lastAnalyze, &lastAutoanalyze, &vacuumCount, &autovacuumCount, &analyzeCount, &autoanalyzeCount); err != nil {
+		if err := rows.Scan(&datname, &schemaname, &relname, &relPages, &relSize, &seqScan, &seqTupRead, &idxScan, &idxTupFetch, &nTupIns, &nTupUpd, &nTupDel, &nTupHotUpd, &nLiveTup, &nDeadTup, &nModSinceAnalyze, &lastVacuum, &lastAutovacuum, &lastAnalyze, &lastAutoanalyze, &vacuumCount, &autovacuumCount, &analyzeCount, &autoanalyzeCount); err != nil {
 			return err
 		}
 
@@ -211,6 +227,28 @@ func (c *PGStatUserTablesCollector) Update(ctx context.Context, instance *instan
 			relnameLabel = relname.String
 		}
 
+		relPagesMetric := 0.0
+		if relPages.Valid {
+			relPagesMetric = float64(relPages.Int64)
+		}
+		ch <- prometheus.MustNewConstMetric(
+			statUserTablesRelPages,
+			prometheus.GaugeValue,
+			relPagesMetric,
+			datnameLabel, schemanameLabel, relnameLabel,
+		)
+
+		relSizeMetric := 0.0
+		if relSize.Valid {
+			relSizeMetric = float64(relSize.Int64)
+		}
+		ch <- prometheus.MustNewConstMetric(
+			statUserTablesRelSize,
+			prometheus.GaugeValue,
+			relSizeMetric,
+			datnameLabel, schemanameLabel, relnameLabel,
+		)
+
 		seqScanMetric := 0.0
 		if seqScan.Valid {
 			seqScanMetric = float64(seqScan.Int64)
diff --git a/collector/pg_stat_user_tables_test.go b/collector/pg_stat_user_tables_test.go
index e592fa5e4..488ad008c 100644
--- a/collector/pg_stat_user_tables_test.go
+++ b/collector/pg_stat_user_tables_test.go
@@ -53,6 +53,8 @@ func TestPGStatUserTablesCollector(t *testing.T) {
 		"datname",
 		"schemaname",
 		"relname",
+		"relpages",
+		"relsize",
 		"seq_scan",
 		"seq_tup_read",
 		"idx_scan",
@@ -86,15 +88,17 @@ func TestPGStatUserTablesCollector(t *testing.T) {
 			8,
 			9,
 			10,
+			11,
+			12,
 			0,
 			lastVacuumTime,
 			lastAutoVacuumTime,
 			lastAnalyzeTime,
 			lastAutoAnalyzeTime,
-			11,
-			12,
 			13,
-			14)
+			14,
+			15,
+			16)
 	mock.ExpectQuery(sanitizeQuery(statUserTablesQuery)).WillReturnRows(rows)
 	ch := make(chan prometheus.Metric)
 	go func() {
@@ -107,25 +111,27 @@ func TestPGStatUserTablesCollector(t *testing.T) {
 	}()
 
 	expected := []MetricResult{
-		{labels: labelMap{"datname": "postgres", "schemaname": "public", "relname": "a_table"}, metricType: dto.MetricType_COUNTER, value: 1},
-		{labels: labelMap{"datname": "postgres", "schemaname": "public", "relname": "a_table"}, metricType: dto.MetricType_COUNTER, value: 2},
+		{labels: labelMap{"datname": "postgres", "schemaname": "public", "relname": "a_table"}, metricType: dto.MetricType_GAUGE, value: 1},
+		{labels: labelMap{"datname": "postgres", "schemaname": "public", "relname": "a_table"}, metricType: dto.MetricType_GAUGE, value: 2},
 		{labels: labelMap{"datname": "postgres", "schemaname": "public", "relname": "a_table"}, metricType: dto.MetricType_COUNTER, value: 3},
 		{labels: labelMap{"datname": "postgres", "schemaname": "public", "relname": "a_table"}, metricType: dto.MetricType_COUNTER, value: 4},
 		{labels: labelMap{"datname": "postgres", "schemaname": "public", "relname": "a_table"}, metricType: dto.MetricType_COUNTER, value: 5},
 		{labels: labelMap{"datname": "postgres", "schemaname": "public", "relname": "a_table"}, metricType: dto.MetricType_COUNTER, value: 6},
 		{labels: labelMap{"datname": "postgres", "schemaname": "public", "relname": "a_table"}, metricType: dto.MetricType_COUNTER, value: 7},
 		{labels: labelMap{"datname": "postgres", "schemaname": "public", "relname": "a_table"}, metricType: dto.MetricType_COUNTER, value: 8},
-		{labels: labelMap{"datname": "postgres", "schemaname": "public", "relname": "a_table"}, metricType: dto.MetricType_GAUGE, value: 9},
-		{labels: labelMap{"datname": "postgres", "schemaname": "public", "relname": "a_table"}, metricType: dto.MetricType_GAUGE, value: 10},
+		{labels: labelMap{"datname": "postgres", "schemaname": "public", "relname": "a_table"}, metricType: dto.MetricType_COUNTER, value: 9},
+		{labels: labelMap{"datname": "postgres", "schemaname": "public", "relname": "a_table"}, metricType: dto.MetricType_COUNTER, value: 10},
+		{labels: labelMap{"datname": "postgres", "schemaname": "public", "relname": "a_table"}, metricType: dto.MetricType_GAUGE, value: 11},
+		{labels: labelMap{"datname": "postgres", "schemaname": "public", "relname": "a_table"}, metricType: dto.MetricType_GAUGE, value: 12},
 		{labels: labelMap{"datname": "postgres", "schemaname": "public", "relname": "a_table"}, metricType: dto.MetricType_GAUGE, value: 0},
 		{labels: labelMap{"datname": "postgres", "schemaname": "public", "relname": "a_table"}, metricType: dto.MetricType_GAUGE, value: 1685664000},
 		{labels: labelMap{"datname": "postgres", "schemaname": "public", "relname": "a_table"}, metricType: dto.MetricType_GAUGE, value: 1685750400},
 		{labels: labelMap{"datname": "postgres", "schemaname": "public", "relname": "a_table"}, metricType: dto.MetricType_GAUGE, value: 1685836800},
 		{labels: labelMap{"datname": "postgres", "schemaname": "public", "relname": "a_table"}, metricType: dto.MetricType_GAUGE, value: 1685923200},
-		{labels: labelMap{"datname": "postgres", "schemaname": "public", "relname": "a_table"}, metricType: dto.MetricType_COUNTER, value: 11},
-		{labels: labelMap{"datname": "postgres", "schemaname": "public", "relname": "a_table"}, metricType: dto.MetricType_COUNTER, value: 12},
 		{labels: labelMap{"datname": "postgres", "schemaname": "public", "relname": "a_table"}, metricType: dto.MetricType_COUNTER, value: 13},
 		{labels: labelMap{"datname": "postgres", "schemaname": "public", "relname": "a_table"}, metricType: dto.MetricType_COUNTER, value: 14},
+		{labels: labelMap{"datname": "postgres", "schemaname": "public", "relname": "a_table"}, metricType: dto.MetricType_COUNTER, value: 15},
+		{labels: labelMap{"datname": "postgres", "schemaname": "public", "relname": "a_table"}, metricType: dto.MetricType_COUNTER, value: 16},
 	}
 
 	convey.Convey("Metrics comparison", t, func() {
@@ -152,6 +158,8 @@ func TestPGStatUserTablesCollectorNullValues(t *testing.T) {
 		"datname",
 		"schemaname",
 		"relname",
+		"relpages",
+		"relsize",
 		"seq_scan",
 		"seq_tup_read",
 		"idx_scan",
@@ -193,6 +201,8 @@ func TestPGStatUserTablesCollectorNullValues(t *testing.T) {
 			nil,
 			nil,
 			nil,
+			nil,
+			nil,
 			nil)
 	mock.ExpectQuery(sanitizeQuery(statUserTablesQuery)).WillReturnRows(rows)
 	ch := make(chan prometheus.Metric)
@@ -206,6 +216,8 @@ func TestPGStatUserTablesCollectorNullValues(t *testing.T) {
 	}()
 
 	expected := []MetricResult{
+		{labels: labelMap{"datname": "postgres", "schemaname": "unknown", "relname": "unknown"}, metricType: dto.MetricType_GAUGE, value: 0},
+		{labels: labelMap{"datname": "postgres", "schemaname": "unknown", "relname": "unknown"}, metricType: dto.MetricType_GAUGE, value: 0},
 		{labels: labelMap{"datname": "postgres", "schemaname": "unknown", "relname": "unknown"}, metricType: dto.MetricType_COUNTER, value: 0},
 		{labels: labelMap{"datname": "postgres", "schemaname": "unknown", "relname": "unknown"}, metricType: dto.MetricType_COUNTER, value: 0},
 		{labels: labelMap{"datname": "postgres", "schemaname": "unknown", "relname": "unknown"}, metricType: dto.MetricType_COUNTER, value: 0},