diff --git a/metered-channel/src/bounded.rs b/metered-channel/src/bounded.rs
index 3a48982..e392f5b 100644
--- a/metered-channel/src/bounded.rs
+++ b/metered-channel/src/bounded.rs
@@ -224,7 +224,8 @@ impl<T> Stream for MeteredReceiver<T> {
 impl<T> MeteredReceiver<T> {
 	fn maybe_meter_tof(&mut self, maybe_value: Option<MaybeTimeOfFlight<T>>) -> Option<T> {
 		self.meter.note_received();
-		maybe_value.map(|value| {
+
+		let result = maybe_value.map(|value| {
 			match value {
 				MaybeTimeOfFlight::<T>::WithTimeOfFlight(value, tof_start) => {
 					// do not use `.elapsed()` of `std::time`, it may panic
@@ -236,7 +237,11 @@ impl<T> MeteredReceiver<T> {
 				MaybeTimeOfFlight::<T>::Bare(value) => value,
 			}
 			.into()
-		})
+		});
+
+		#[cfg(feature = "async_channel")]
+		self.meter.note_channel_len(self.inner.len());
+		result
 	}
 
 	/// Get an updated accessor object for all metrics collected.
@@ -330,6 +335,9 @@ impl<T> MeteredSender<T> {
 		} else {
 			MaybeTimeOfFlight::Bare(item)
 		};
+		#[cfg(feature = "async_channel")]
+		self.meter.note_channel_len(self.inner.len());
+
 		item
 	}
 
@@ -352,7 +360,10 @@ impl<T> MeteredSender<T> {
 				self.meter.note_blocked();
 				self.meter.note_sent(); // we are going to do full blocking send, so we have to note it here
 				let msg = send_err.into_inner().into();
-				self.send_to_channel(msg).await
+				let result = self.send_to_channel(msg).await;
+				#[cfg(feature = "async_channel")]
+				self.meter.note_channel_len(self.inner.len());
+				result
 			},
 			_ => Ok(()),
 		}
diff --git a/metered-channel/src/lib.rs b/metered-channel/src/lib.rs
index b89241c..d0512dc 100644
--- a/metered-channel/src/lib.rs
+++ b/metered-channel/src/lib.rs
@@ -107,17 +107,25 @@ impl Meter {
 	}
 
 	fn note_sent(&self) -> usize {
+		#[cfg(feature = "futures_channel")]
 		self.channel_len.fetch_add(1, Ordering::Relaxed);
 		self.sent.fetch_add(1, Ordering::Relaxed)
 	}
 
 	fn retract_sent(&self) {
 		self.sent.fetch_sub(1, Ordering::Relaxed);
+		#[cfg(feature = "futures_channel")]
 		self.channel_len.fetch_add(1, Ordering::Relaxed);
 	}
 
+	#[cfg(feature = "async_channel")]
+	fn note_channel_len(&self, len: usize) {
+		self.channel_len.store(len, Ordering::Relaxed);
+	}
+
 	fn note_received(&self) {
 		self.received.fetch_add(1, Ordering::Relaxed);
+		#[cfg(feature = "futures_channel")]
 		self.channel_len.fetch_sub(1, Ordering::Relaxed);
 	}
 
diff --git a/metered-channel/src/unbounded.rs b/metered-channel/src/unbounded.rs
index f1d4063..6658359 100644
--- a/metered-channel/src/unbounded.rs
+++ b/metered-channel/src/unbounded.rs
@@ -84,7 +84,7 @@ impl<T> Stream for UnboundedMeteredReceiver<T> {
 impl<T> UnboundedMeteredReceiver<T> {
 	fn maybe_meter_tof(&mut self, maybe_value: Option<MaybeTimeOfFlight<T>>) -> Option<T> {
 		self.meter.note_received();
-		maybe_value.map(|value| {
+		let result = maybe_value.map(|value| {
 			match value {
 				MaybeTimeOfFlight::<T>::WithTimeOfFlight(value, tof_start) => {
 					// do not use `.elapsed()` of `std::time`, it may panic
@@ -96,7 +96,12 @@ impl<T> UnboundedMeteredReceiver<T> {
 				MaybeTimeOfFlight::<T>::Bare(value) => value,
 			}
 			.into()
-		})
+		});
+
+		#[cfg(feature = "async_channel")]
+		self.meter.note_channel_len(self.inner.len());
+
+		result
 	}
 
 	/// Get an updated accessor object for all metrics collected.
@@ -170,6 +175,10 @@ impl<T> UnboundedMeteredSender<T> {
 		} else {
 			MaybeTimeOfFlight::Bare(item)
 		};
+
+		#[cfg(feature = "async_channel")]
+		self.meter.note_channel_len(self.inner.len());
+
 		item
 	}