diff --git a/pkg/check/smoke/metrics.go b/pkg/check/smoke/metrics.go
index f46cdb0ac..4759650ed 100644
--- a/pkg/check/smoke/metrics.go
+++ b/pkg/check/smoke/metrics.go
@@ -15,6 +15,7 @@ type metrics struct {
 	DownloadAttempts    prometheus.Counter
 	UploadDuration      prometheus.Histogram
 	DownloadDuration    prometheus.Histogram
+	UploadSize          prometheus.Gauge
 }
 
 func newMetrics(subsystem string) metrics {
@@ -91,6 +92,14 @@ func newMetrics(subsystem string) metrics {
 				Help:      "Data download duration through the /bytes endpoint.",
 			},
 		),
+		UploadSize: prometheus.NewGauge(
+			prometheus.GaugeOpts{
+				Namespace: m.Namespace,
+				Subsystem: subsystem,
+				Name:      "upload_size",
+				Help:      "Amount of data uploaded per upload.",
+			},
+		),
 	}
 }
 
diff --git a/pkg/check/smoke/smoke.go b/pkg/check/smoke/smoke.go
index c92d00aa0..ca6276300 100644
--- a/pkg/check/smoke/smoke.go
+++ b/pkg/check/smoke/smoke.go
@@ -91,6 +91,8 @@ func (c *Check) Run(ctx context.Context, cluster orchestration.Cluster, opts int
 
 	test := &test{clients: clients, logger: c.logger}
 
+	c.metrics.UploadSize.Set(float64(o.ContentSize))
+
 	for i := 0; true; i++ {
 		select {
 		case <-ctx.Done():