diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0ed7d3a..da43fb3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,7 @@ It's about time I started a changelog! This will serve from now on as the master
 ## v1.10 (unreleased)
  - `//maze`: Fix some parts of generated mazes staying solid
  - `//maze`, `//maze3d`: Allow non-number seeds (existing seeds aren't affected - they will still produce identical output)
+ - `//many`: Improve format of progress messages, add ETA
 
 
 ## v1.9: The Nature Update (20th September 2020)
diff --git a/worldeditadditions/utils/numbers.lua b/worldeditadditions/utils/numbers.lua
index cefd879..a4f1865 100644
--- a/worldeditadditions/utils/numbers.lua
+++ b/worldeditadditions/utils/numbers.lua
@@ -25,3 +25,10 @@ end
 function worldeditadditions.get_ms_time()
 	return minetest.get_us_time() / 1000
 end
+
+function worldeditadditions.eta(existing_times, times_total_count)
+    local average = worldeditadditions.average(existing_times)
+    local times_left = times_total_count - #existing_times
+    if times_left == 0 then return 0 end
+    return average * times_left
+end
diff --git a/worldeditadditions_commands/commands/meta/many.lua b/worldeditadditions_commands/commands/meta/many.lua
index f98225d..8b95077 100644
--- a/worldeditadditions_commands/commands/meta/many.lua
+++ b/worldeditadditions_commands/commands/meta/many.lua
@@ -35,7 +35,14 @@ local function step(params)
 	local start_time = worldeditadditions.get_ms_time()
 	
 	local full_cmd = params.cmd_name.." "..params.args
-	worldedit.player_notify(params.name, "[ many ] [ /"..full_cmd.." ] "..(params.i + 1).." / "..params.count.." (~"..worldeditadditions.round(((params.i + 1) / params.count)*100, 2).."%)")
+	worldedit.player_notify(params.name, string.format("[ many | /%s ] %d / %d (~%.2f%%) complete | last: %s, average: %s, ETA: ~%s",
+		full_cmd,
+		(params.i + 1), params.count,
+		((params.i + 1) / params.count)*100,
+		worldeditadditions.human_time(params.times[#params.times] or 0),
+		worldeditadditions.human_time(worldeditadditions.average(params.times)),
+		worldeditadditions.human_time(worldeditadditions.eta(params.times, params.count))
+	))
 	
 	local cmd = minetest.chatcommands[params.cmd_name]
 	
@@ -43,7 +50,7 @@ local function step(params)
 	cmd.func(params.name, params.args)
 	
 	
-	params.times[#params.times + 1] = (worldeditadditions.get_ms_time() - start_time)
+	table.insert(params.times, worldeditadditions.get_ms_time() - start_time)
 	
 	params.i = params.i + 1
 	if params.i < params.count then
@@ -52,7 +59,7 @@ local function step(params)
 		local total_time = (worldeditadditions.get_ms_time() - params.master_start_time)
 		local done_message = {}
 		table.insert(done_message,
-			string.format("Executed '"..full_cmd.."' %d times in %s (~%s / time",
+			string.format("Executed '"..full_cmd.."' %d times in %s (~%s / time)",
 				#params.times,
 				worldeditadditions.human_time(total_time),
 				worldeditadditions.human_time(
diff --git a/worldeditadditions_commands/commands/meta/subdivide.lua b/worldeditadditions_commands/commands/meta/subdivide.lua
index 884d7f5..e2d73e5 100644
--- a/worldeditadditions_commands/commands/meta/subdivide.lua
+++ b/worldeditadditions_commands/commands/meta/subdivide.lua
@@ -136,14 +136,22 @@ worldedit.register_command("subdivide", {
 					-- print("eta", eta, "time_average", time_average, "chunks_left", chunks_total - i)
 					
 					-- Send updates every 2 seconds, and after the first 3 chunks are done
+					print("[DEBUG]",
+					i, chunks_total,
+					(i / chunks_total) * 100,
+					wea.human_time(time_this),
+					wea.human_time(time_average),
+					"eta", eta, "[human]", wea.human_time(eta), "end")
 					if worldeditadditions.get_ms_time() - time_last_msg > 2 * 1000 or i == 3 or i == chunks_total then
 						worldedit.player_notify(name,
-							msg_prefix
-							..i.." / "..chunks_total.." (~"
-							..string.format("%.2f", (i / chunks_total) * 100).."%) complete | "
-							.."last chunk: "..wea.human_time(time_this)
-							..", average: "..wea.human_time(time_average)
-							..", ETA: ~"..wea.human_time(eta)
+							string.format("%s%d / %d (~%.2f%%) complete | last chunk: %s, average: %s, ETA: ~%s",
+								msg_prefix,
+								i, chunks_total,
+								(i / chunks_total) * 100,
+								wea.human_time(time_this),
+								wea.human_time(time_average),
+								wea.human_time(eta)
+							)
 						)
 						time_last_msg = worldeditadditions.get_ms_time()
 					end