diff --git a/po/LINGUAS b/po/LINGUAS
index 57b6061..05e8fd5 100644
--- a/po/LINGUAS
+++ b/po/LINGUAS
@@ -1,6 +1,7 @@
 cs
 de
 es
+fi
 fr
 pl
 pt
diff --git a/po/fi.po b/po/fi.po
new file mode 100644
index 0000000..390062c
--- /dev/null
+++ b/po/fi.po
@@ -0,0 +1,566 @@
+#, fuzzy
+msgid ""
+msgstr ""
+"Project-Id-Version: pv 1.9.34\n"
+"Report-Msgid-Bugs-To: https://codeberg.org/ivarch/pv/issues\n"
+"POT-Creation-Date: 2025-09-30 22:30+0100\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"Language: fi\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: src/main/help.c:236
+msgid "show progress bar"
+msgstr ""
+
+#: src/main/help.c:239
+msgid "show elapsed time"
+msgstr ""
+
+#: src/main/help.c:242
+msgid "show estimated time of arrival (completion)"
+msgstr ""
+
+#: src/main/help.c:245
+msgid "show absolute estimated time of arrival (completion)"
+msgstr ""
+
+#: src/main/help.c:248
+msgid "show data transfer rate counter"
+msgstr ""
+
+#: src/main/help.c:251
+msgid "show data transfer average rate counter"
+msgstr ""
+
+#: src/main/help.c:254
+msgid "show number of bytes transferred"
+msgstr ""
+
+#: src/main/help.c:257
+msgid "show percentage of transfer buffer in use"
+msgstr ""
+
+#: src/main/help.c:259
+msgid "NUM"
+msgstr ""
+
+#: src/main/help.c:260
+msgid "show NUM bytes last written"
+msgstr ""
+
+#: src/main/help.c:262
+msgid "FORMAT"
+msgstr ""
+
+#: src/main/help.c:263
+msgid "set output format to FORMAT"
+msgstr ""
+
+#: src/main/help.c:266
+msgid "output percentages, not visual information"
+msgstr ""
+
+#: src/main/help.c:269
+msgid "do not output any transfer information at all"
+msgstr ""
+
+#: src/main/help.c:273
+msgid "show number of bits transferred"
+msgstr ""
+
+#: src/main/help.c:276
+msgid "treat suffixes as multiples of 1000 rather than 1024"
+msgstr ""
+
+#: src/main/help.c:279
+msgid "display nothing until first byte transferred"
+msgstr ""
+
+#: src/main/help.c:281 src/main/help.c:296 src/main/help.c:299
+msgid "SEC"
+msgstr ""
+
+#: src/main/help.c:282
+msgid "display nothing until SEC seconds have passed"
+msgstr ""
+
+#: src/main/help.c:284
+msgid "SIZE"
+msgstr ""
+
+#: src/main/help.c:285
+msgid "set estimated data size to SIZE bytes"
+msgstr ""
+
+#: src/main/help.c:288
+msgid "if size unknown, show rate vs max rate"
+msgstr ""
+
+#: src/main/help.c:291
+msgid "count lines instead of bytes"
+msgstr ""
+
+#: src/main/help.c:294
+msgid "lines are null-terminated"
+msgstr ""
+
+#: src/main/help.c:297
+msgid "update every SEC seconds"
+msgstr ""
+
+#: src/main/help.c:300
+msgid "compute average rate over past SEC seconds (default 30s)"
+msgstr ""
+
+#: src/main/help.c:302
+msgid "WIDTH"
+msgstr ""
+
+#: src/main/help.c:303
+msgid "assume terminal is WIDTH characters wide"
+msgstr ""
+
+#: src/main/help.c:305
+msgid "HEIGHT"
+msgstr ""
+
+#: src/main/help.c:306
+msgid "assume terminal is HEIGHT rows high"
+msgstr ""
+
+#: src/main/help.c:308
+msgid "NAME"
+msgstr ""
+
+#: src/main/help.c:309
+msgid "prefix visual information with NAME"
+msgstr ""
+
+#: src/main/help.c:311
+msgid "STYLE"
+msgstr ""
+
+#: src/main/help.c:312
+msgid "set default bar style to NAME"
+msgstr ""
+
+#: src/main/help.c:314
+msgid "SPEC"
+msgstr ""
+
+#: src/main/help.c:315
+msgid "also send progress to SPEC"
+msgstr ""
+
+#: src/main/help.c:318
+msgid "output transfer statistics at the end"
+msgstr ""
+
+#: src/main/help.c:321
+msgid "output even if standard error is not a terminal"
+msgstr ""
+
+#: src/main/help.c:324
+msgid "use cursor positioning escape sequences"
+msgstr ""
+
+#: src/main/help.c:327 src/main/help.c:357 src/main/help.c:369
+#: src/main/help.c:379
+msgid "FILE"
+msgstr ""
+
+#: src/main/help.c:328
+msgid "write output to FILE instead of stdout"
+msgstr ""
+
+#: src/main/help.c:330
+msgid "RATE"
+msgstr ""
+
+#: src/main/help.c:331
+msgid "limit transfer to RATE bytes per second"
+msgstr ""
+
+#: src/main/help.c:333 src/main/help.c:342
+msgid "BYTES"
+msgstr ""
+
+#: src/main/help.c:334
+msgid "use a buffer size of BYTES"
+msgstr ""
+
+#: src/main/help.c:337
+msgid "never use splice(), always use read/write"
+msgstr ""
+
+#: src/main/help.c:340
+msgid "skip read errors in input"
+msgstr ""
+
+#: src/main/help.c:343
+msgid "skip errors in BYTES blocks at a time"
+msgstr ""
+
+#: src/main/help.c:346
+msgid "stop after --size bytes have been transferred"
+msgstr ""
+
+#: src/main/help.c:349
+msgid "flush cache to disk after every write"
+msgstr ""
+
+#: src/main/help.c:352
+msgid "use direct I/O to bypass cache"
+msgstr ""
+
+#: src/main/help.c:355
+msgid "discard input instead of writing to output"
+msgstr ""
+
+#: src/main/help.c:358
+msgid "write all input to FILE before writing to output"
+msgstr ""
+
+#: src/main/help.c:360
+msgid "PID[:FD]"
+msgstr ""
+
+#: src/main/help.c:361
+msgid "watch file FD opened by process PID"
+msgstr ""
+
+#: src/main/help.c:364
+msgid "PID"
+msgstr ""
+
+#: src/main/help.c:365
+msgid "update settings of process PID"
+msgstr ""
+
+#: src/main/help.c:370
+msgid "save process ID in FILE"
+msgstr ""
+
+#: src/main/help.c:373
+msgid "show this help and exit"
+msgstr ""
+
+#: src/main/help.c:376
+msgid "show version information and exit"
+msgstr ""
+
+#: src/main/help.c:380
+msgid "write debug logs to FILE"
+msgstr ""
+
+#: src/main/help.c:406
+#, c-format
+msgid "Usage: %s [OPTION] [FILE]..."
+msgstr ""
+
+#: src/main/help.c:417
+msgid ""
+"Concatenate FILE(s), or standard input, to standard output, with monitoring."
+msgstr ""
+
+#: src/main/help.c:555
+msgid "Supported format sequences:"
+msgstr ""
+
+#: src/main/help.c:569
+#, c-format
+msgid "Please report any bugs to: %s"
+msgstr ""
+
+#: src/main/main.c:232
+msgid "(input)"
+msgstr ""
+
+#: src/main/main.c:334
+msgid "state allocation failed"
+msgstr ""
+
+#: src/main/options.c:184 src/pv/file.c:342
+msgid "failed to stat file"
+msgstr ""
+
+#: src/main/options.c:198
+msgid "is a directory"
+msgstr ""
+
+#: src/main/options.c:227
+msgid "failed to generate sysfs filename"
+msgstr ""
+
+#: src/main/options.c:249
+msgid "failed to read sysfs size file"
+msgstr ""
+
+#: src/main/options.c:269
+msgid "failed to open block device"
+msgstr ""
+
+#: src/main/options.c:279
+msgid "failed to determine size of block device"
+msgstr ""
+
+#: src/main/options.c:385
+msgid "option structure allocation failed"
+msgstr ""
+
+#: src/main/options.c:404
+msgid "option structure argv allocation failed"
+msgstr ""
+
+#: src/main/options.c:456
+msgid "numeric value not understood"
+msgstr ""
+
+#: src/main/options.c:474
+msgid "integer argument expected"
+msgstr ""
+
+#: src/main/options.c:486
+msgid "numeric argument expected"
+msgstr ""
+
+#: src/main/options.c:497 src/main/options.c:815
+msgid "process ID or pid:fd pair expected"
+msgstr ""
+
+#: src/main/options.c:504 src/main/options.c:823
+msgid "invalid process ID"
+msgstr ""
+
+#: src/main/options.c:741
+#, c-format
+msgid "Try `%s --help' for more information."
+msgstr ""
+
+#: src/main/options.c:743
+#, c-format
+msgid "Try `%s -h' for more information."
+msgstr ""
+
+#: src/main/options.c:774
+msgid ""
+"cannot use line mode or transfer modifier options when watching file "
+"descriptors"
+msgstr ""
+
+#: src/main/options.c:783
+msgid "cannot use cursor positioning when watching file descriptors"
+msgstr ""
+
+#: src/main/options.c:792
+msgid "cannot use remote control when watching file descriptors"
+msgstr ""
+
+#: src/main/options.c:801
+msgid "cannot transfer files when watching file descriptors"
+msgstr ""
+
+#: src/main/options.c:845
+msgid "not available on systems without /proc/self/fdinfo"
+msgstr ""
+
+#: src/main/remote.c:309
+msgid "message not received"
+msgstr ""
+
+#: src/main/remote.c:444
+msgid "SA_SIGINFO not supported on this system"
+msgstr ""
+
+#: src/main/version.c:28
+msgid "License: GPLv3+ <https://www.gnu.org/licenses/gpl-3.0.html>"
+msgstr ""
+
+#: src/main/version.c:29
+msgid "This is free software: you are free to change and redistribute it."
+msgstr ""
+
+#: src/main/version.c:30
+msgid "There is NO WARRANTY, to the extent permitted by law."
+msgstr ""
+
+#: src/main/version.c:32
+msgid "Project web site"
+msgstr ""
+
+#: src/pv/cursor.c:61
+msgid "failed to get terminal name"
+msgstr ""
+
+#: src/pv/cursor.c:106
+msgid "failed to open lock file"
+msgstr ""
+
+#: src/pv/cursor.c:139
+msgid "lock attempt failed"
+msgstr ""
+
+#: src/pv/cursor.c:400
+msgid "failed to open terminal"
+msgstr ""
+
+#: src/pv/display.c:285
+msgid "yzafpnum kMGTPEZY"
+msgstr ""
+
+#: src/pv/display.c:303
+msgid "yzafpnum KMGTPEZY"
+msgstr ""
+
+#: src/pv/display.c:1053 src/pv/loop.c:700 src/pv/transfer.c:1079
+msgid "buffer allocation failed"
+msgstr ""
+
+#: src/pv/file.c:153
+msgid "failed to seek to start of output"
+msgstr ""
+
+#: src/pv/file.c:303
+msgid "failed to close file"
+msgstr ""
+
+#: src/pv/file.c:335
+msgid "failed to read file"
+msgstr ""
+
+#: src/pv/file.c:350
+msgid "failed to stat output file"
+msgstr ""
+
+#: src/pv/file.c:372
+msgid "input file is output file"
+msgstr ""
+
+#: src/pv/file.c:429
+msgid "(none)"
+msgstr ""
+
+#: src/pv/file.c:431
+msgid "(stdin)"
+msgstr ""
+
+#: src/pv/format/averagerate.c:34 src/pv/format/progressbar.c:92
+#: src/pv/format/rate.c:36 src/pv/loop.c:565
+msgid "b/s"
+msgstr ""
+
+#: src/pv/format/averagerate.c:38 src/pv/format/progressbar.c:96
+#: src/pv/format/rate.c:40
+msgid "/s"
+msgstr ""
+
+#: src/pv/format/averagerate.c:38 src/pv/format/progressbar.c:96
+#: src/pv/format/rate.c:40 src/pv/loop.c:565
+msgid "B/s"
+msgstr ""
+
+#: src/pv/format/bytes.c:35
+msgid "b"
+msgstr ""
+
+#: src/pv/format/bytes.c:39 src/pv/transfer.c:616
+msgid "B"
+msgstr ""
+
+#: src/pv/format/eta.c:52 src/pv/format/eta.c:56
+msgid "ETA"
+msgstr ""
+
+#: src/pv/format/fineta.c:80
+msgid "FIN"
+msgstr ""
+
+#: src/pv/loop.c:564
+msgid "rate min/avg/max/mdev"
+msgstr ""
+
+#: src/pv/loop.c:576
+msgid "rate not measured"
+msgstr ""
+
+#: src/pv/loop.c:721 src/pv/loop.c:737 src/pv/loop.c:755 src/pv/watchpid.c:99
+#: src/pv/watchpid.c:108 src/pv/watchpid.c:119 src/pv/watchpid.c:127
+#: src/pv/watchpid.c:164 src/pv/watchpid.c:183 src/pv/watchpid.c:191
+#: src/pv/watchpid.c:201 src/pv/watchpid.c:299 src/pv/watchpid.c:307
+#: src/pv/watchpid.c:439 src/pv/watchpid.c:462
+msgid "pid"
+msgstr ""
+
+#: src/pv/loop.c:755 src/pv/watchpid.c:108 src/pv/watchpid.c:120
+#: src/pv/watchpid.c:129 src/pv/watchpid.c:183 src/pv/watchpid.c:192
+#: src/pv/watchpid.c:203
+msgid "fd"
+msgstr ""
+
+#: src/pv/state.c:42
+msgid "history structure allocation failed"
+msgstr ""
+
+#: src/pv/state.c:685 src/pv/state.c:697
+msgid "file list allocation failed"
+msgstr ""
+
+#: src/pv/state.c:731
+msgid "process list allocation failed"
+msgstr ""
+
+#: src/pv/state.c:739
+msgid "file descriptor list allocation failed"
+msgstr ""
+
+#: src/pv/transfer.c:486
+msgid "read failed"
+msgstr ""
+
+#: src/pv/transfer.c:502
+msgid "warning: read errors detected"
+msgstr ""
+
+#: src/pv/transfer.c:518
+msgid "file is not seekable"
+msgstr ""
+
+#: src/pv/transfer.c:595
+msgid "failed to seek past error"
+msgstr ""
+
+#: src/pv/transfer.c:615
+msgid "skipped past read error"
+msgstr ""
+
+#: src/pv/transfer.c:656
+msgid "no transfer buffer allocated"
+msgstr ""
+
+#: src/pv/transfer.c:698
+msgid "failed to set interval timer"
+msgstr ""
+
+#: src/pv/transfer.c:724
+msgid "failed to clear interval timer"
+msgstr ""
+
+#: src/pv/transfer.c:766
+msgid "line position buffer allocation failed"
+msgstr ""
+
+#: src/pv/transfer.c:940
+msgid "write failed"
+msgstr ""
+
+#: src/pv/transfer.c:1181
+msgid "select call failed"
+msgstr ""
+
+#: src/pv/watchpid.c:129 src/pv/watchpid.c:203
+msgid "not a regular file or block device"
+msgstr ""