diff --git a/internal/render/header.go b/internal/render/header.go
index 91eab1ae..253189cf 100644
--- a/internal/render/header.go
+++ b/internal/render/header.go
@@ -17,6 +17,7 @@ type HeaderColumn struct {
 	Wide      bool
 	MX        bool
 	Time      bool
+	Capacity  bool
 }
 
 // Clone copies a header.
@@ -163,6 +164,15 @@ func (h Header) IsTimeCol(col int) bool {
 	return h[col].Time
 }
 
+// IsCapacityCol checks if given column index represents a capacity.
+func (h Header) IsCapacityCol(col int) bool {
+	if col < 0 || col >= len(h) {
+		return false
+	}
+
+	return h[col].Capacity
+}
+
 // ValidColIndex returns the valid col index or -1 if none.
 func (h Header) ValidColIndex() int {
 	return h.IndexOf("VALID", true)
diff --git a/internal/render/helpers.go b/internal/render/helpers.go
index 1988633b..422c6d8f 100644
--- a/internal/render/helpers.go
+++ b/internal/render/helpers.go
@@ -12,6 +12,7 @@ import (
 	"github.com/rs/zerolog/log"
 	"golang.org/x/text/language"
 	"golang.org/x/text/message"
+	"k8s.io/apimachinery/pkg/api/resource"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/util/duration"
 )
@@ -57,6 +58,11 @@ func durationToSeconds(duration string) int64 {
 	return n
 }
 
+func capacityToNumber(capacity string) int64 {
+	quantity := resource.MustParse(capacity)
+	return quantity.Value()
+}
+
 // AsThousands prints a number with thousand separator.
 func AsThousands(n int64) string {
 	p := message.NewPrinter(language.English)
diff --git a/internal/render/pv.go b/internal/render/pv.go
index eecf98a7..630c2e77 100644
--- a/internal/render/pv.go
+++ b/internal/render/pv.go
@@ -49,7 +49,7 @@ func (p PersistentVolume) ColorerFunc() ColorerFunc {
 func (PersistentVolume) Header(string) Header {
 	return Header{
 		HeaderColumn{Name: "NAME"},
-		HeaderColumn{Name: "CAPACITY"},
+		HeaderColumn{Name: "CAPACITY", Capacity: true},
 		HeaderColumn{Name: "ACCESS MODES"},
 		HeaderColumn{Name: "RECLAIM POLICY"},
 		HeaderColumn{Name: "STATUS"},
diff --git a/internal/render/pvc.go b/internal/render/pvc.go
index 809ae1c6..f5514d5b 100644
--- a/internal/render/pvc.go
+++ b/internal/render/pvc.go
@@ -21,7 +21,7 @@ func (PersistentVolumeClaim) Header(ns string) Header {
 		HeaderColumn{Name: "NAME"},
 		HeaderColumn{Name: "STATUS"},
 		HeaderColumn{Name: "VOLUME"},
-		HeaderColumn{Name: "CAPACITY"},
+		HeaderColumn{Name: "CAPACITY", Capacity: true},
 		HeaderColumn{Name: "ACCESS MODES"},
 		HeaderColumn{Name: "STORAGECLASS"},
 		HeaderColumn{Name: "LABELS", Wide: true},
diff --git a/internal/render/row.go b/internal/render/row.go
index 5962c24a..1bd5e387 100644
--- a/internal/render/row.go
+++ b/internal/render/row.go
@@ -145,12 +145,13 @@ func (rr Rows) Find(id string) (int, bool) {
 }
 
 // Sort rows based on column index and order.
-func (rr Rows) Sort(col int, asc, isNum, isDur bool) {
+func (rr Rows) Sort(col int, asc, isNum, isDur, isCapacity bool) {
 	t := RowSorter{
 		Rows:       rr,
 		Index:      col,
 		IsNumber:   isNum,
 		IsDuration: isDur,
+		IsCapacity: isCapacity,
 		Asc:        asc,
 	}
 	sort.Sort(t)
@@ -160,10 +161,12 @@ func (rr Rows) Sort(col int, asc, isNum, isDur bool) {
 
 // RowSorter sorts rows.
 type RowSorter struct {
-	Rows                 Rows
-	Index                int
-	IsNumber, IsDuration bool
-	Asc                  bool
+	Rows       Rows
+	Index      int
+	IsNumber   bool
+	IsDuration bool
+	IsCapacity bool
+	Asc        bool
 }
 
 func (s RowSorter) Len() int {
@@ -177,7 +180,7 @@ func (s RowSorter) Swap(i, j int) {
 func (s RowSorter) Less(i, j int) bool {
 	v1, v2 := s.Rows[i].Fields[s.Index], s.Rows[j].Fields[s.Index]
 	id1, id2 := s.Rows[i].ID, s.Rows[j].ID
-	less := Less(s.IsNumber, s.IsDuration, id1, id2, v1, v2)
+	less := Less(s.IsNumber, s.IsDuration, s.IsCapacity, id1, id2, v1, v2)
 	if s.Asc {
 		return less
 	}
@@ -188,7 +191,7 @@ func (s RowSorter) Less(i, j int) bool {
 // Helpers...
 
 // Less return true if c1 < c2.
-func Less(isNumber, isDuration bool, id1, id2, v1, v2 string) bool {
+func Less(isNumber, isDuration, isCapacity bool, id1, id2, v1, v2 string) bool {
 	var less bool
 	switch {
 	case isNumber:
@@ -197,6 +200,9 @@ func Less(isNumber, isDuration bool, id1, id2, v1, v2 string) bool {
 	case isDuration:
 		d1, d2 := durationToSeconds(v1), durationToSeconds(v2)
 		less = d1 <= d2
+	case isCapacity:
+		c1, c2 := capacityToNumber(v1), capacityToNumber(v2)
+		less = c1 <= c2
 	default:
 		less = sortorder.NaturalLess(v1, v2)
 	}
diff --git a/internal/render/row_event.go b/internal/render/row_event.go
index 795006c4..83c7c440 100644
--- a/internal/render/row_event.go
+++ b/internal/render/row_event.go
@@ -193,7 +193,7 @@ func (r RowEvents) FindIndex(id string) (int, bool) {
 }
 
 // Sort rows based on column index and order.
-func (r RowEvents) Sort(ns string, sortCol int, isDuration, numCol, asc bool) {
+func (r RowEvents) Sort(ns string, sortCol int, isDuration, numCol, isCapacity, asc bool) {
 	if sortCol == -1 {
 		return
 	}
@@ -205,6 +205,7 @@ func (r RowEvents) Sort(ns string, sortCol int, isDuration, numCol, asc bool) {
 		Asc:        asc,
 		IsNumber:   numCol,
 		IsDuration: isDuration,
+		IsCapacity: isCapacity,
 	}
 	sort.Sort(t)
 }
@@ -218,6 +219,7 @@ type RowEventSorter struct {
 	NS         string
 	IsNumber   bool
 	IsDuration bool
+	IsCapacity bool
 	Asc        bool
 }
 
@@ -232,7 +234,7 @@ func (r RowEventSorter) Swap(i, j int) {
 func (r RowEventSorter) Less(i, j int) bool {
 	f1, f2 := r.Events[i].Row.Fields, r.Events[j].Row.Fields
 	id1, id2 := r.Events[i].Row.ID, r.Events[j].Row.ID
-	less := Less(r.IsNumber, r.IsDuration, id1, id2, f1[r.Index], f2[r.Index])
+	less := Less(r.IsNumber, r.IsDuration, r.IsCapacity, id1, id2, f1[r.Index], f2[r.Index])
 	if r.Asc {
 		return less
 	}
diff --git a/internal/render/row_event_test.go b/internal/render/row_event_test.go
index 975815e5..c1066730 100644
--- a/internal/render/row_event_test.go
+++ b/internal/render/row_event_test.go
@@ -413,6 +413,7 @@ func TestRowEventsSort(t *testing.T) {
 		re                 render.RowEvents
 		col                int
 		duration, num, asc bool
+		capacity           bool
 		e                  render.RowEvents
 	}{
 		"age_time": {
@@ -464,12 +465,33 @@ func TestRowEventsSort(t *testing.T) {
 				{Row: render.Row{ID: "ns2/C", Fields: render.Fields{"C", "2", "3"}}},
 			},
 		},
+		"capacity": {
+			re: render.RowEvents{
+				{Row: render.Row{ID: "ns1/B", Fields: render.Fields{"B", "2", "3", "1Gi"}}},
+				{Row: render.Row{ID: "ns1/A", Fields: render.Fields{"A", "2", "3", "1.1G"}}},
+				{Row: render.Row{ID: "ns1/C", Fields: render.Fields{"C", "2", "3", "0.5Ti"}}},
+				{Row: render.Row{ID: "ns2/B", Fields: render.Fields{"B", "2", "3", "12e6"}}},
+				{Row: render.Row{ID: "ns2/A", Fields: render.Fields{"A", "2", "3", "1234"}}},
+				{Row: render.Row{ID: "ns2/C", Fields: render.Fields{"C", "2", "3", "0.1Ei"}}},
+			},
+			col:      3,
+			asc:      true,
+			capacity: true,
+			e: render.RowEvents{
+				{Row: render.Row{ID: "ns2/A", Fields: render.Fields{"A", "2", "3", "1234"}}},
+				{Row: render.Row{ID: "ns2/B", Fields: render.Fields{"B", "2", "3", "12e6"}}},
+				{Row: render.Row{ID: "ns1/B", Fields: render.Fields{"B", "2", "3", "1Gi"}}},
+				{Row: render.Row{ID: "ns1/A", Fields: render.Fields{"A", "2", "3", "1.1G"}}},
+				{Row: render.Row{ID: "ns1/C", Fields: render.Fields{"C", "2", "3", "0.5Ti"}}},
+				{Row: render.Row{ID: "ns2/C", Fields: render.Fields{"C", "2", "3", "0.1Ei"}}},
+			},
+		},
 	}
 
 	for k := range uu {
 		u := uu[k]
 		t.Run(k, func(t *testing.T) {
-			u.re.Sort("", u.col, u.duration, u.num, u.asc)
+			u.re.Sort("", u.col, u.duration, u.num, u.capacity, u.asc)
 			assert.Equal(t, u.e, u.re)
 		})
 	}
diff --git a/internal/render/row_test.go b/internal/render/row_test.go
index 185eb700..82e4728f 100644
--- a/internal/render/row_test.go
+++ b/internal/render/row_test.go
@@ -304,7 +304,7 @@ func TestRowsSortText(t *testing.T) {
 	for k := range uu {
 		u := uu[k]
 		t.Run(k, func(t *testing.T) {
-			u.rows.Sort(u.col, u.asc, u.num, false)
+			u.rows.Sort(u.col, u.asc, u.num, false, false)
 			assert.Equal(t, u.e, u.rows)
 		})
 	}
@@ -369,7 +369,7 @@ func TestRowsSortDuration(t *testing.T) {
 	for k := range uu {
 		u := uu[k]
 		t.Run(k, func(t *testing.T) {
-			u.rows.Sort(u.col, u.asc, false, true)
+			u.rows.Sort(u.col, u.asc, false, true, false)
 			assert.Equal(t, u.e, u.rows)
 		})
 	}
@@ -411,7 +411,49 @@ func TestRowsSortMetrics(t *testing.T) {
 	for k := range uu {
 		u := uu[k]
 		t.Run(k, func(t *testing.T) {
-			u.rows.Sort(u.col, u.asc, true, false)
+			u.rows.Sort(u.col, u.asc, true, false, false)
+			assert.Equal(t, u.e, u.rows)
+		})
+	}
+}
+
+func TestRowsSortCapacity(t *testing.T) {
+	uu := map[string]struct {
+		rows render.Rows
+		col  int
+		asc  bool
+		e    render.Rows
+	}{
+		"capacityAsc": {
+			rows: render.Rows{
+				{Fields: []string{"10Gi", "duh"}},
+				{Fields: []string{"10G", "blee"}},
+			},
+			col: 0,
+			asc: true,
+			e: render.Rows{
+				{Fields: []string{"10G", "blee"}},
+				{Fields: []string{"10Gi", "duh"}},
+			},
+		},
+		"capacityDesc": {
+			rows: render.Rows{
+				{Fields: []string{"10000m", "1000Mi"}},
+				{Fields: []string{"1m", "50Mi"}},
+			},
+			col: 1,
+			asc: false,
+			e: render.Rows{
+				{Fields: []string{"10000m", "1000Mi"}},
+				{Fields: []string{"1m", "50Mi"}},
+			},
+		},
+	}
+
+	for k := range uu {
+		u := uu[k]
+		t.Run(k, func(t *testing.T) {
+			u.rows.Sort(u.col, u.asc, false, false, true)
 			assert.Equal(t, u.e, u.rows)
 		})
 	}
@@ -419,14 +461,17 @@ func TestRowsSortMetrics(t *testing.T) {
 
 func TestLess(t *testing.T) {
 	uu := map[string]struct {
-		isNumber, isDuration bool
-		id1, id2             string
-		v1, v2               string
-		e                    bool
+		isNumber   bool
+		isDuration bool
+		isCapacity bool
+		id1, id2   string
+		v1, v2     string
+		e          bool
 	}{
 		"years": {
 			isNumber:   false,
 			isDuration: true,
+			isCapacity: false,
 			id1:        "id1",
 			id2:        "id2",
 			v1:         "2y263d",
@@ -435,17 +480,38 @@ func TestLess(t *testing.T) {
 		"hours": {
 			isNumber:   false,
 			isDuration: true,
+			isCapacity: false,
 			id1:        "id1",
 			id2:        "id2",
 			v1:         "2y263d",
 			v2:         "19h",
 		},
+		"capacity1": {
+			isNumber:   false,
+			isDuration: false,
+			isCapacity: true,
+			id1:        "id1",
+			id2:        "id2",
+			v1:         "1Gi",
+			v2:         "1G",
+			e:          false,
+		},
+		"capacity2": {
+			isNumber:   false,
+			isDuration: false,
+			isCapacity: true,
+			id1:        "id1",
+			id2:        "id2",
+			v1:         "1Gi",
+			v2:         "1Ti",
+			e:          true,
+		},
 	}
 
 	for k := range uu {
 		u := uu[k]
 		t.Run(k, func(t *testing.T) {
-			assert.Equal(t, u.e, render.Less(u.isNumber, u.isDuration, u.id1, u.id2, u.v1, u.v2))
+			assert.Equal(t, u.e, render.Less(u.isNumber, u.isDuration, u.isCapacity, u.id1, u.id2, u.v1, u.v2))
 		})
 	}
 }
diff --git a/internal/ui/table.go b/internal/ui/table.go
index ad0ea4b4..b412bde6 100644
--- a/internal/ui/table.go
+++ b/internal/ui/table.go
@@ -247,6 +247,7 @@ func (t *Table) doUpdate(data *render.TableData) {
 		colIndex,
 		custData.Header.IsTimeCol(colIndex),
 		custData.Header.IsMetricsCol(colIndex),
+		custData.Header.IsCapacityCol(colIndex),
 		t.sortCol.asc,
 	)