diff --git a/daemon/HTTPServer.cpp b/daemon/HTTPServer.cpp
index 7a6c5c12..917acdb8 100644
--- a/daemon/HTTPServer.cpp
+++ b/daemon/HTTPServer.cpp
@@ -290,13 +290,13 @@ namespace http {
 		s << "<b>" << tr("Tunnel creation success rate") << ":</b> " << i2p::tunnel::tunnels.GetTunnelCreationSuccessRate () << "%<br>\r\n";
 		s << "<b>" << tr("Received") << ":</b> ";
 		ShowTraffic (s, i2p::transport::transports.GetTotalReceivedBytes ());
-		s << " (" << (double) i2p::transport::transports.GetInBandwidth () / 1024 << " " << tr(/* tr: Kibibit/s */ "KiB/s") << ")<br>\r\n";
+		s << " (" << (double) i2p::transport::transports.GetInBandwidth15s () / 1024 << " " << tr(/* tr: Kibibit/s */ "KiB/s") << ")<br>\r\n";
 		s << "<b>" << tr("Sent") << ":</b> ";
 		ShowTraffic (s, i2p::transport::transports.GetTotalSentBytes ());
-		s << " (" << (double) i2p::transport::transports.GetOutBandwidth () / 1024 << " " << tr(/* tr: Kibibit/s */ "KiB/s") << ")<br>\r\n";
+		s << " (" << (double) i2p::transport::transports.GetOutBandwidth15s () / 1024 << " " << tr(/* tr: Kibibit/s */ "KiB/s") << ")<br>\r\n";
 		s << "<b>" << tr("Transit") << ":</b> ";
 		ShowTraffic (s, i2p::transport::transports.GetTotalTransitTransmittedBytes ());
-		s << " (" << (double) i2p::transport::transports.GetTransitBandwidth () / 1024 << " " << tr(/* tr: Kibibit/s */ "KiB/s") << ")<br>\r\n";
+		s << " (" << (double) i2p::transport::transports.GetTransitBandwidth15s () / 1024 << " " << tr(/* tr: Kibibit/s */ "KiB/s") << ")<br>\r\n";
 		s << "<b>" << tr("Data path") << ":</b> " << i2p::fs::GetUTF8DataDir() << "<br>\r\n";
 		s << "<div class='slide'>";
 		if ((outputFormat == OutputFormatEnum::forWebConsole) || !includeHiddenContent) {
diff --git a/daemon/I2PControlHandlers.cpp b/daemon/I2PControlHandlers.cpp
index 15763948..f3ea7f61 100644
--- a/daemon/I2PControlHandlers.cpp
+++ b/daemon/I2PControlHandlers.cpp
@@ -33,7 +33,9 @@ namespace client
 		m_RouterInfoHandlers["i2p.router.netdb.knownpeers"]          = &I2PControlHandlers::NetDbKnownPeersHandler;
 		m_RouterInfoHandlers["i2p.router.netdb.activepeers"]         = &I2PControlHandlers::NetDbActivePeersHandler;
 		m_RouterInfoHandlers["i2p.router.net.bw.inbound.1s"]         = &I2PControlHandlers::InboundBandwidth1S;
+		m_RouterInfoHandlers["i2p.router.net.bw.inbound.15s"]        = &I2PControlHandlers::InboundBandwidth15S;
 		m_RouterInfoHandlers["i2p.router.net.bw.outbound.1s"]        = &I2PControlHandlers::OutboundBandwidth1S;
+		m_RouterInfoHandlers["i2p.router.net.bw.outbound.15s"]       = &I2PControlHandlers::OutboundBandwidth15S;
 		m_RouterInfoHandlers["i2p.router.net.status"]                = &I2PControlHandlers::NetStatusHandler;
 		m_RouterInfoHandlers["i2p.router.net.tunnels.participating"] = &I2PControlHandlers::TunnelsParticipatingHandler;
 		m_RouterInfoHandlers["i2p.router.net.tunnels.successrate"]   = &I2PControlHandlers::TunnelsSuccessRateHandler;
@@ -153,12 +155,24 @@ namespace client
 		InsertParam (results, "i2p.router.net.bw.inbound.1s", bw);
 	}
 
+	void I2PControlHandlers::InboundBandwidth15S (std::ostringstream& results)
+	{
+		double bw = i2p::transport::transports.GetInBandwidth15s ();
+		InsertParam (results, "i2p.router.net.bw.inbound.15s", bw);
+	}
+
 	void I2PControlHandlers::OutboundBandwidth1S (std::ostringstream& results)
 	{
 		double bw = i2p::transport::transports.GetOutBandwidth ();
 		InsertParam (results, "i2p.router.net.bw.outbound.1s", bw);
 	}
 
+	void I2PControlHandlers::OutboundBandwidth15S (std::ostringstream& results)
+	{
+		double bw = i2p::transport::transports.GetOutBandwidth15s ();
+		InsertParam (results, "i2p.router.net.bw.outbound.15s", bw);
+	}
+
 	void I2PControlHandlers::NetTotalReceivedBytes (std::ostringstream& results)
 	{
 		InsertParam (results, "i2p.router.net.total.received.bytes", (double)i2p::transport::transports.GetTotalReceivedBytes ());
diff --git a/daemon/I2PControlHandlers.h b/daemon/I2PControlHandlers.h
index e33a19fc..d106f288 100644
--- a/daemon/I2PControlHandlers.h
+++ b/daemon/I2PControlHandlers.h
@@ -50,7 +50,9 @@ namespace client
 			void TunnelsParticipatingHandler (std::ostringstream& results);
 			void TunnelsSuccessRateHandler (std::ostringstream& results);
 			void InboundBandwidth1S (std::ostringstream& results);
+			void InboundBandwidth15S (std::ostringstream& results);
 			void OutboundBandwidth1S (std::ostringstream& results);
+			void OutboundBandwidth15S (std::ostringstream& results);
 			void NetTotalReceivedBytes (std::ostringstream& results);
 			void NetTotalSentBytes (std::ostringstream& results);
 
diff --git a/libi2pd/Transports.cpp b/libi2pd/Transports.cpp
index 34fcc065..8c15480d 100644
--- a/libi2pd/Transports.cpp
+++ b/libi2pd/Transports.cpp
@@ -136,12 +136,14 @@ namespace transport
 	Transports::Transports ():
 		m_IsOnline (true), m_IsRunning (false), m_IsNAT (true), m_CheckReserved(true), m_Thread (nullptr),
 		m_Service (nullptr), m_Work (nullptr), m_PeerCleanupTimer (nullptr), m_PeerTestTimer (nullptr),
-		m_SSU2Server (nullptr), m_NTCP2Server (nullptr),
+		m_UpdateBandwidthTimer (nullptr), m_SSU2Server (nullptr), m_NTCP2Server (nullptr),
 		m_X25519KeysPairSupplier (15), // 15 pre-generated keys
-		m_TotalSentBytes(0), m_TotalReceivedBytes(0), m_TotalTransitTransmittedBytes (0),
-		m_InBandwidth (0), m_OutBandwidth (0), m_TransitBandwidth(0),
-		m_LastInBandwidthUpdateBytes (0), m_LastOutBandwidthUpdateBytes (0),
-		m_LastTransitBandwidthUpdateBytes (0), m_LastBandwidthUpdateTime (0)
+		m_TotalSentBytes (0), m_TotalReceivedBytes (0), m_TotalTransitTransmittedBytes (0),
+		m_InBandwidth (0), m_OutBandwidth (0), m_TransitBandwidth (0),
+		m_LastInBandwidthUpdateBytes (0), m_LastOutBandwidthUpdateBytes (0), m_LastTransitBandwidthUpdateBytes (0),
+		m_InBandwidth15s (0), m_OutBandwidth15s (0), m_TransitBandwidth15s (0),
+		m_LastInBandwidth15sUpdateBytes (0), m_LastOutBandwidth15sUpdateBytes (0), m_LastTransitBandwidth15sUpdateBytes (0),
+		m_LastBandwidth15sUpdateTime (0)
 	{
 	}
 
@@ -152,6 +154,7 @@ namespace transport
 		{
 			delete m_PeerCleanupTimer; m_PeerCleanupTimer = nullptr;
 			delete m_PeerTestTimer; m_PeerTestTimer = nullptr;
+			delete m_UpdateBandwidthTimer; m_UpdateBandwidthTimer = nullptr;
 			delete m_Work; m_Work = nullptr;
 			delete m_Service; m_Service = nullptr;
 		}
@@ -165,6 +168,7 @@ namespace transport
 			m_Work = new boost::asio::io_service::work (*m_Service);
 			m_PeerCleanupTimer = new boost::asio::deadline_timer (*m_Service);
 			m_PeerTestTimer = new boost::asio::deadline_timer (*m_Service);
+			m_UpdateBandwidthTimer = new boost::asio::steady_timer (*m_Service);
 		}
 
 		bool ipv4; i2p::config::GetOption("ipv4", ipv4);
@@ -299,9 +303,12 @@ namespace transport
 		if (m_SSU2Server) m_SSU2Server->Start ();
 		if (m_SSU2Server) DetectExternalIP ();
 
-		m_PeerCleanupTimer->expires_from_now (boost::posix_time::seconds(5*SESSION_CREATION_TIMEOUT));
+		m_PeerCleanupTimer->expires_from_now (boost::posix_time::seconds(5 * SESSION_CREATION_TIMEOUT));
 		m_PeerCleanupTimer->async_wait (std::bind (&Transports::HandlePeerCleanupTimer, this, std::placeholders::_1));
 
+		m_UpdateBandwidthTimer->expires_from_now (std::chrono::seconds(1));
+		m_UpdateBandwidthTimer->async_wait (std::bind (&Transports::HandleUpdateBandwidthTimer, this, std::placeholders::_1));
+
 		if (m_IsNAT)
 		{
 			m_PeerTestTimer->expires_from_now (boost::posix_time::minutes(PEER_TEST_INTERVAL));
@@ -357,23 +364,38 @@ namespace transport
 		}
 	}
 
-	void Transports::UpdateBandwidth ()
+	void Transports::HandleUpdateBandwidthTimer (const boost::system::error_code& ecode)
 	{
-		uint64_t ts = i2p::util::GetMillisecondsSinceEpoch ();
-		if (m_LastBandwidthUpdateTime > 0)
+		if (ecode != boost::asio::error::operation_aborted)
 		{
-			auto delta = ts - m_LastBandwidthUpdateTime;
-			if (delta > 0)
+			uint64_t ts = i2p::util::GetMillisecondsSinceEpoch ();
+
+			// updated every second
+			m_InBandwidth = m_TotalReceivedBytes - m_LastInBandwidthUpdateBytes;
+			m_OutBandwidth = m_TotalSentBytes - m_LastOutBandwidthUpdateBytes;
+			m_TransitBandwidth = m_TotalTransitTransmittedBytes - m_LastTransitBandwidthUpdateBytes;
+			
+			m_LastInBandwidthUpdateBytes = m_TotalReceivedBytes;
+			m_LastOutBandwidthUpdateBytes = m_TotalSentBytes;
+			m_LastTransitBandwidthUpdateBytes = m_TotalTransitTransmittedBytes;
+
+			// updated every 15 seconds
+			auto delta = ts - m_LastBandwidth15sUpdateTime;
+			if (delta > 15 * 1000)
 			{
-				m_InBandwidth = (m_TotalReceivedBytes - m_LastInBandwidthUpdateBytes)*1000/delta; // per second
-				m_OutBandwidth = (m_TotalSentBytes - m_LastOutBandwidthUpdateBytes)*1000/delta; // per second
-				m_TransitBandwidth = (m_TotalTransitTransmittedBytes - m_LastTransitBandwidthUpdateBytes)*1000/delta;
+				m_InBandwidth15s = (m_TotalReceivedBytes - m_LastInBandwidth15sUpdateBytes) * 1000 / delta;
+				m_OutBandwidth15s = (m_TotalSentBytes - m_LastOutBandwidth15sUpdateBytes) * 1000 / delta;
+				m_TransitBandwidth15s = (m_TotalTransitTransmittedBytes - m_LastTransitBandwidth15sUpdateBytes) * 1000 / delta;
+
+				m_LastBandwidth15sUpdateTime = ts;
+				m_LastInBandwidth15sUpdateBytes = m_TotalReceivedBytes;
+				m_LastOutBandwidth15sUpdateBytes = m_TotalSentBytes;
+				m_LastTransitBandwidth15sUpdateBytes = m_TotalTransitTransmittedBytes;
 			}
+
+			m_UpdateBandwidthTimer->expires_from_now (std::chrono::seconds(1));
+			m_UpdateBandwidthTimer->async_wait (std::bind (&Transports::HandleUpdateBandwidthTimer, this, std::placeholders::_1));
 		}
-		m_LastBandwidthUpdateTime = ts;
-		m_LastInBandwidthUpdateBytes = m_TotalReceivedBytes;
-		m_LastOutBandwidthUpdateBytes = m_TotalSentBytes;
-		m_LastTransitBandwidthUpdateBytes = m_TotalTransitTransmittedBytes;
 	}
 
 	bool Transports::IsBandwidthExceeded () const
@@ -745,7 +767,7 @@ namespace transport
 			{
 				it->second.sessions.remove_if (
 					[](std::shared_ptr<TransportSession> session)->bool
-				    {
+					{
 						return !session || !session->IsEstablished ();
 					});
  				if (it->second.sessions.empty () && ts > it->second.creationTime + SESSION_CREATION_TIMEOUT)
@@ -772,13 +794,12 @@ namespace transport
 					++it;
 				}
 			}
-			UpdateBandwidth (); // TODO: use separate timer(s) for it
 			bool ipv4Testing = i2p::context.GetStatus () == eRouterStatusTesting;
 			bool ipv6Testing = i2p::context.GetStatusV6 () == eRouterStatusTesting;
 			// if still testing, repeat peer test
 			if (ipv4Testing || ipv6Testing)
 				PeerTest (ipv4Testing, ipv6Testing);
-			m_PeerCleanupTimer->expires_from_now (boost::posix_time::seconds(3*SESSION_CREATION_TIMEOUT));
+			m_PeerCleanupTimer->expires_from_now (boost::posix_time::seconds(3 * SESSION_CREATION_TIMEOUT));
 			m_PeerCleanupTimer->async_wait (std::bind (&Transports::HandlePeerCleanupTimer, this, std::placeholders::_1));
 		}
 	}
diff --git a/libi2pd/Transports.h b/libi2pd/Transports.h
index 05fc5458..06527ffc 100644
--- a/libi2pd/Transports.h
+++ b/libi2pd/Transports.h
@@ -124,6 +124,9 @@ namespace transport
 			uint32_t GetInBandwidth () const { return m_InBandwidth; };
 			uint32_t GetOutBandwidth () const { return m_OutBandwidth; };
 			uint32_t GetTransitBandwidth () const { return m_TransitBandwidth; };
+			uint32_t GetInBandwidth15s () const { return m_InBandwidth15s; };
+			uint32_t GetOutBandwidth15s () const { return m_OutBandwidth15s; };
+			uint32_t GetTransitBandwidth15s () const { return m_TransitBandwidth15s; };
 			bool IsBandwidthExceeded () const;
 			bool IsTransitBandwidthExceeded () const;
 			size_t GetNumPeers () const { return m_Peers.size (); };
@@ -155,8 +158,8 @@ namespace transport
 			void SetPriority (Peer& peer) const;
 			void HandlePeerCleanupTimer (const boost::system::error_code& ecode);
 			void HandlePeerTestTimer (const boost::system::error_code& ecode);
+			void HandleUpdateBandwidthTimer (const boost::system::error_code& ecode);
 
-			void UpdateBandwidth ();
 			void DetectExternalIP ();
 
 		private:
@@ -167,6 +170,7 @@ namespace transport
 			boost::asio::io_service * m_Service;
 			boost::asio::io_service::work * m_Work;
 			boost::asio::deadline_timer * m_PeerCleanupTimer, * m_PeerTestTimer;
+			boost::asio::steady_timer * m_UpdateBandwidthTimer;
 
 			SSU2Server * m_SSU2Server;
 			NTCP2Server * m_NTCP2Server;
@@ -176,9 +180,15 @@ namespace transport
 			X25519KeysPairSupplier m_X25519KeysPairSupplier;
 
 			std::atomic<uint64_t> m_TotalSentBytes, m_TotalReceivedBytes, m_TotalTransitTransmittedBytes;
-			uint32_t m_InBandwidth, m_OutBandwidth, m_TransitBandwidth; // bytes per second
+
+			// Bandwidth per second
+			uint32_t m_InBandwidth, m_OutBandwidth, m_TransitBandwidth;
 			uint64_t m_LastInBandwidthUpdateBytes, m_LastOutBandwidthUpdateBytes, m_LastTransitBandwidthUpdateBytes;
-			uint64_t m_LastBandwidthUpdateTime;
+
+			// Bandwidth every 15 seconds
+			uint32_t m_InBandwidth15s, m_OutBandwidth15s, m_TransitBandwidth15s;
+			uint64_t m_LastInBandwidth15sUpdateBytes, m_LastOutBandwidth15sUpdateBytes, m_LastTransitBandwidth15sUpdateBytes;
+			uint64_t m_LastBandwidth15sUpdateTime;
 
 			/** which router families to trust for first hops */
 			std::vector<i2p::data::FamilyID> m_TrustedFamilies;