diff --git a/speedtest-cli.1 b/speedtest-cli.1
index eb20ea7..56f6dbd 100644
--- a/speedtest-cli.1
+++ b/speedtest-cli.1
@@ -38,6 +38,16 @@ Generate and provide a URL to the speedtest.net share results image
 Suppress verbose output, only show basic information
 .RE
 
+\fB\-\-collectd\fR
+.RS
+Emit output compatible with the \fBcollectd-exec(5)\fR collectd script.
+.RE
+
+\fB\-\-collectd_interval COLLECTD_INTERVAL\fR
+.RS
+The collection interval (in seconds) to be used when using the \fBcollectd-exec(5)\fR script.
+.RE
+
 \fB\-\-list\fR
 .RS
 Display a list of speedtest.net servers sorted by distance
diff --git a/speedtest_cli.py b/speedtest_cli.py
index d93d5c3..352efa2 100755
--- a/speedtest_cli.py
+++ b/speedtest_cli.py
@@ -21,6 +21,7 @@ import sys
 import math
 import signal
 import socket
+import time
 import timeit
 import platform
 import threading
@@ -579,6 +580,12 @@ def speedtest():
     parser.add_argument('--simple', action='store_true',
                         help='Suppress verbose output, only show basic '
                              'information')
+    parser.add_argument('--collectd', action='store_true',
+                        help='Outputs PUTVAL lines compatible with the '
+                             'collectd-exec script')
+    parser.add_argument('--collectd_interval', default=900, type=int,
+                        help='Collection interval for the collectd-exec '
+                             'plugin (in seconds)')
     parser.add_argument('--list', action='store_true',
                         help='Display a list of speedtest.net servers '
                              'sorted by distance')
@@ -617,6 +624,10 @@ def speedtest():
     if args.secure:
         scheme = 'https'
 
+    # Assume 'simple' if collectd format was requested.
+    if args.collectd:
+        args.simple = True
+
     if not args.simple:
         print_('Retrieving speedtest.net configuration...')
     try:
@@ -706,7 +717,14 @@ def speedtest():
         print_(('Hosted by %(sponsor)s (%(name)s) [%(d)0.2f km]: '
                '%(latency)s ms' % best).encode('utf-8', 'ignore'))
     else:
-        print_('Ping: %(latency)s ms' % best)
+        if args.collectd:
+            print_('PUTVAL "%s/speedtest/latency-latency_ms" '
+                   'interval=%d N:%d' % (
+                       socket.gethostname(),
+                       args.collectd_interval,
+                       best['latency']))
+        else:
+            print_('Ping: %(latency)s ms' % best)
 
     sizes = [350, 500, 750, 1000, 1500, 2000, 2500, 3000, 3500, 4000]
     urls = []
@@ -719,8 +737,12 @@ def speedtest():
     dlspeed = downloadSpeed(urls, args.simple)
     if not args.simple:
         print_()
-    print_('Download: %0.2f M%s/s' %
-           ((dlspeed / 1000 / 1000) * args.units[1], args.units[0]))
+    if args.collectd:
+        print_('PUTVAL "%s/speedtest/bitrate-download_bps" interval=%d N:%d' %
+               (socket.gethostname(), args.collectd_interval, dlspeed * 8))
+    else:
+        print_('Download: %0.2f M%s/s' %
+               ((dlspeed / 1000 / 1000) * args.units[1], args.units[0]))
 
     sizesizes = [int(.25 * 1000 * 1000), int(.5 * 1000 * 1000)]
     sizes = []
@@ -732,8 +754,12 @@ def speedtest():
     ulspeed = uploadSpeed(best['url'], sizes, args.simple)
     if not args.simple:
         print_()
-    print_('Upload: %0.2f M%s/s' %
-           ((ulspeed / 1000 / 1000) * args.units[1], args.units[0]))
+    if args.collectd:
+        print_('PUTVAL "%s/speedtest/bitrate-upload_bps" interval=%d N:%d' %
+               (socket.gethostname(), args.collectd_interval, ulspeed * 8))
+    else:
+        print_('Upload: %0.2f M%s/s' %
+               ((ulspeed / 1000 / 1000) * args.units[1], args.units[0]))
 
     if args.share and args.mini:
         print_('Cannot generate a speedtest.net share results image while '
@@ -784,6 +810,10 @@ def speedtest():
         print_('Share results: %s://www.speedtest.net/result/%s.png' %
                (scheme, resultid[0]))
 
+    # Sleep before next cycle if collectd requested
+    if args.collectd:
+        time.sleep(args.collectd_interval)
+
 
 def main():
     try: