diff --git a/package/lean/luci-app-filetransfer/luasrc/model/cbi/updownload.lua b/package/lean/luci-app-filetransfer/luasrc/model/cbi/updownload.lua
index 7b487cb215..af56b44b7c 100644
--- a/package/lean/luci-app-filetransfer/luasrc/model/cbi/updownload.lua
+++ b/package/lean/luci-app-filetransfer/luasrc/model/cbi/updownload.lua
@@ -86,6 +86,16 @@ elseif luci.http.formvalue("download") then
 	Download()
 end
 
+local function getSizeStr(size)
+	local i = 0
+	local byteUnits = {' kB', ' MB', ' GB', ' TB'}
+	repeat
+		size = size / 1024
+		i = i + 1
+	until(size <= 1024)
+    return string.format("%.1f", size) .. byteUnits[i]
+end
+
 local inits, attr = {}
 for i, f in ipairs(fs.glob("/tmp/upload/*")) do
 	attr = fs.stat(f)
@@ -94,7 +104,7 @@ for i, f in ipairs(fs.glob("/tmp/upload/*")) do
 		inits[i].name = fs.basename(f)
 		inits[i].mtime = os.date("%Y-%m-%d %H:%M:%S", attr.mtime)
 		inits[i].modestr = attr.modestr
-		inits[i].size = tostring(attr.size)
+		inits[i].size = getSizeStr(attr.size)
 		inits[i].remove = 0
 		inits[i].install = false
 	end