diff --git a/src/misc.cpp b/src/misc.cpp
index 89208b71d..fb0e1ebe3 100644
--- a/src/misc.cpp
+++ b/src/misc.cpp
@@ -259,7 +259,9 @@ int misc::pythonVersion() {
 // use Binary prefix standards from IEC 60027-2
 // see http://en.wikipedia.org/wiki/Kilobyte
 // value must be given in bytes
-QString misc::friendlyUnit(qreal val, bool is_speed) {
+// FIXME: Remove the 'webui' variable, when the webui API is reworked
+// to send numbers instead of strings with suffixes
+QString misc::friendlyUnit(qreal val, bool is_speed, bool webui) {
   if (val < 0)
     return QCoreApplication::translate("misc", "Unknown", "Unknown (size)");
   int i = 0;
@@ -269,7 +271,7 @@ QString misc::friendlyUnit(qreal val, bool is_speed) {
   if (i == 0)
     ret = QString::number((long)val) + " " + QCoreApplication::translate("misc", units[0].source, units[0].comment);
   else
-    ret = accurateDoubleToString(val, 1) + " " + QCoreApplication::translate("misc", units[i].source, units[i].comment);
+    ret = accurateDoubleToString(val, 1, !webui) + " " + QCoreApplication::translate("misc", units[i].source, units[i].comment);
   if (is_speed)
     ret += QCoreApplication::translate("misc", "/s", "per second");
   return ret;
@@ -585,7 +587,9 @@ bool misc::naturalSort(QString left, QString right, bool &result) { // uses less
 }
 #endif
 
-QString misc::accurateDoubleToString(const double &n, const int &precision) {
+// FIXME: Remove the 'localized' variable, when the webui API is reworked
+// to send numbers instead of strings with suffixes
+QString misc::accurateDoubleToString(const double &n, const int &precision, bool localized) {
   /* HACK because QString rounds up. Eg QString::number(0.999*100.0, 'f' ,1) == 99.9
   ** but QString::number(0.9999*100.0, 'f' ,1) == 100.0 The problem manifests when
   ** the number has more digits after the decimal than we want AND the digit after
@@ -593,5 +597,8 @@ QString misc::accurateDoubleToString(const double &n, const int &precision) {
   ** precision we add an extra 0 behind 1 in the below algorithm. */
 
   double prec = std::pow(10.0, precision);
-  return QLocale::system().toString(std::floor(n*prec)/prec, 'f', precision);
+  if (localized)
+    return QLocale::system().toString(std::floor(n*prec)/prec, 'f', precision);
+  else
+    return QString::number(std::floor(n*prec)/prec, 'f', precision);
 }
diff --git a/src/misc.h b/src/misc.h
index 00dae66af..3e7eae607 100644
--- a/src/misc.h
+++ b/src/misc.h
@@ -92,7 +92,7 @@ namespace misc
   // use Binary prefix standards from IEC 60027-2
   // see http://en.wikipedia.org/wiki/Kilobyte
   // value must be given in bytes
-  QString friendlyUnit(qreal val, bool is_speed = false);
+  QString friendlyUnit(qreal val, bool is_speed = false, bool webui=false);
   bool isPreviewable(const QString& extension);
   QString magnetUriToName(const QString& magnet_uri);
   QString magnetUriToHash(const QString& magnet_uri);
@@ -109,7 +109,7 @@ namespace misc
   QList<bool> boolListfromStringList(const QStringList &l);
 
   QString toQString(time_t t);
-  QString accurateDoubleToString(const double &n, const int &precision);
+  QString accurateDoubleToString(const double &n, const int &precision, bool localized=true);
 
 #ifndef DISABLE_GUI
   bool naturalSort(QString left, QString right, bool& result);
diff --git a/src/webui/btjson.cpp b/src/webui/btjson.cpp
index 77096eb80..ad2be1dca 100644
--- a/src/webui/btjson.cpp
+++ b/src/webui/btjson.cpp
@@ -128,10 +128,10 @@ static QVariantMap toMap(const QTorrentHandle& h)
   QVariantMap ret;
   ret[KEY_TORRENT_HASH] =  h.hash();
   ret[KEY_TORRENT_NAME] =  h.name();
-  ret[KEY_TORRENT_SIZE] =  misc::friendlyUnit(status.total_wanted); // FIXME: Should pass as Number, not formatted String (for sorting).
+  ret[KEY_TORRENT_SIZE] =  misc::friendlyUnit(status.total_wanted, false, true); // FIXME: Should pass as Number, not formatted String (for sorting).
   ret[KEY_TORRENT_PROGRESS] =  (double)h.progress(status);
-  ret[KEY_TORRENT_DLSPEED] = misc::friendlyUnit(status.download_payload_rate, true); // FIXME: Should be passed as a Number
-  ret[KEY_TORRENT_UPSPEED] = misc::friendlyUnit(status.upload_payload_rate, true); // FIXME: Should be passed as a Number
+  ret[KEY_TORRENT_DLSPEED] = misc::friendlyUnit(status.download_payload_rate, true, true); // FIXME: Should be passed as a Number
+  ret[KEY_TORRENT_UPSPEED] = misc::friendlyUnit(status.upload_payload_rate, true, true); // FIXME: Should be passed as a Number
   if (QBtSession::instance()->isQueueingEnabled() && h.queue_position(status) >= 0)
     ret[KEY_TORRENT_PRIORITY] =  QString::number(h.queue_position(status));
   else
@@ -145,7 +145,7 @@ static QVariantMap toMap(const QTorrentHandle& h)
     leechs += " ("+QString::number(status.num_incomplete)+")";
   ret[KEY_TORRENT_LEECHS] =  leechs;
   const qreal ratio = QBtSession::instance()->getRealRatio(status);
-  ret[KEY_TORRENT_RATIO] = (ratio > 100.) ? QString::fromUtf8("∞") : misc::accurateDoubleToString(ratio, 1);
+  ret[KEY_TORRENT_RATIO] = (ratio > 100.) ? QString::fromUtf8("∞") : misc::accurateDoubleToString(ratio, 1, false);
   QString eta;
   QString state;
   if (h.is_paused(status)) {
@@ -295,20 +295,20 @@ QByteArray btjson::getPropertiesForTorrent(const QString& hash)
       save_path = fsutils::toNativePath(h.save_path());
     data[KEY_PROP_SAVE_PATH] = save_path;
     data[KEY_PROP_CREATION_DATE] = h.creation_date();
-    data[KEY_PROP_PIECE_SIZE] = misc::friendlyUnit(h.piece_length());
+    data[KEY_PROP_PIECE_SIZE] = misc::friendlyUnit(h.piece_length(), false, true);
     data[KEY_PROP_COMMENT] = h.comment();
-    data[KEY_PROP_WASTED] = misc::friendlyUnit(status.total_failed_bytes + status.total_redundant_bytes);
-    data[KEY_PROP_UPLOADED] = QString(misc::friendlyUnit(status.all_time_upload) + " (" + misc::friendlyUnit(status.total_payload_upload) + " " + tr("this session") + ")");
-    data[KEY_PROP_DOWNLOADED] = QString(misc::friendlyUnit(status.all_time_download) + " (" + misc::friendlyUnit(status.total_payload_download) + " " + tr("this session") + ")");
-    data[KEY_PROP_UP_LIMIT] = h.upload_limit() <= 0 ? QString::fromUtf8("∞") : misc::friendlyUnit(h.upload_limit(), true);
-    data[KEY_PROP_DL_LIMIT] = h.download_limit() <= 0 ? QString::fromUtf8("∞") : misc::friendlyUnit(h.download_limit(), true);
+    data[KEY_PROP_WASTED] = misc::friendlyUnit(status.total_failed_bytes + status.total_redundant_bytes, false, true);
+    data[KEY_PROP_UPLOADED] = QString(misc::friendlyUnit(status.all_time_upload, false, true) + " (" + misc::friendlyUnit(status.total_payload_upload, false, true) + " " + tr("this session") + ")");
+    data[KEY_PROP_DOWNLOADED] = QString(misc::friendlyUnit(status.all_time_download, false, true) + " (" + misc::friendlyUnit(status.total_payload_download, false, true) + " " + tr("this session") + ")");
+    data[KEY_PROP_UP_LIMIT] = h.upload_limit() <= 0 ? QString::fromUtf8("∞") : misc::friendlyUnit(h.upload_limit(), true, true);
+    data[KEY_PROP_DL_LIMIT] = h.download_limit() <= 0 ? QString::fromUtf8("∞") : misc::friendlyUnit(h.download_limit(), true, true);
     QString elapsed_txt = misc::userFriendlyDuration(status.active_time);
     if (h.is_seed(status))
       elapsed_txt += " ("+tr("Seeded for %1", "e.g. Seeded for 3m10s").arg(misc::userFriendlyDuration(status.seeding_time))+")";
     data[KEY_PROP_TIME_ELAPSED] = elapsed_txt;
     data[KEY_PROP_CONNECT_COUNT] = QString(QString::number(status.num_connections) + " (" + tr("%1 max", "e.g. 10 max").arg(QString::number(status.connections_limit)) + ")");
     const qreal ratio = QBtSession::instance()->getRealRatio(status);
-    data[KEY_PROP_RATIO] = ratio > 100. ? QString::fromUtf8("∞") : misc::accurateDoubleToString(ratio, 1);
+    data[KEY_PROP_RATIO] = ratio > 100. ? QString::fromUtf8("∞") : misc::accurateDoubleToString(ratio, 1, false);
   } catch(const std::exception& e) {
     qWarning() << Q_FUNC_INFO << "Invalid torrent: " << e.what();
     return QByteArray();
@@ -346,7 +346,7 @@ QByteArray btjson::getFilesForTorrent(const QString& hash)
         fileName.chop(4);
       file_dict[KEY_FILE_NAME] = fsutils::toNativePath(fileName);
       const size_type size = h.filesize_at(i);
-      file_dict[KEY_FILE_SIZE] = misc::friendlyUnit(size);
+      file_dict[KEY_FILE_SIZE] = misc::friendlyUnit(size, false, true);
       file_dict[KEY_FILE_PROGRESS] = (size > 0) ? (fp[i] / (double) size) : 1.;
       file_dict[KEY_FILE_PRIORITY] = priorities[i];
       if (i == 0)
@@ -374,7 +374,7 @@ QByteArray btjson::getTransferInfo()
 {
   CACHED_VARIABLE(QVariantMap, info, CACHE_DURATION_MS);
   session_status sessionStatus = QBtSession::instance()->getSessionStatus();
-  info[KEY_TRANSFER_DLSPEED] = tr("D: %1/s - T: %2", "Download speed: x KiB/s - Transferred: x MiB").arg(misc::friendlyUnit(sessionStatus.payload_download_rate)).arg(misc::friendlyUnit(sessionStatus.total_payload_download));
-  info[KEY_TRANSFER_UPSPEED] = tr("U: %1/s - T: %2", "Upload speed: x KiB/s - Transferred: x MiB").arg(misc::friendlyUnit(sessionStatus.payload_upload_rate)).arg(misc::friendlyUnit(sessionStatus.total_payload_upload));
+  info[KEY_TRANSFER_DLSPEED] = tr("D: %1/s - T: %2", "Download speed: x KiB/s - Transferred: x MiB").arg(misc::friendlyUnit(sessionStatus.payload_download_rate, true, true)).arg(misc::friendlyUnit(sessionStatus.total_payload_download, false, true));
+  info[KEY_TRANSFER_UPSPEED] = tr("U: %1/s - T: %2", "Upload speed: x KiB/s - Transferred: x MiB").arg(misc::friendlyUnit(sessionStatus.payload_upload_rate, true, true)).arg(misc::friendlyUnit(sessionStatus.total_payload_upload, false, true));
   return json::toJson(info);
 }