diff --git a/lua/convert/convert_all.lua b/lua/convert/convert_all.lua
index a12eb63..59cc793 100644
--- a/lua/convert/convert_all.lua
+++ b/lua/convert/convert_all.lua
@@ -22,31 +22,21 @@ local convert_all = function(bufnr, from, to)
 	end
 
 	local lines = vim.api.nvim_buf_get_lines(bufnr, 0, -1, false)
-
-	local num_lines = #lines
-	local start_row = 1
-
-	local selection = utils.get_selection()
-
-	if selection ~= nil then
-		start_row = selection.start_row
-		num_lines = #selection.lines
-	end
-
-	for row = start_row, num_lines + start_row - 1, 1 do
-		local line = lines[row]
-		local found_unit = utils.find_unit_in_line(line, row)
-
-		if found_unit ~= nil and found_unit.unit == from then
-			local converted = calculator.convert(from, to, found_unit.val)
-
-			vim.api.nvim_buf_set_text(
-				bufnr,
-				found_unit.pos.row - 1,
-				found_unit.pos.start_col - 1,
-				found_unit.pos.row - 1,
-				found_unit.pos.end_col,
-				{ converted })
+		local all_units = utils.find_all_units_in_line(line, row)
+		if all_units ~= nil and #all_units > 0 and all_units[1].unit == from then
+			for i = #all_units, 1, -1 do
+				local found = all_units[i]
+				local converted = calculator.convert(from, to, found.val)
+
+				vim.api.nvim_buf_set_text(
+					bufnr,
+					found.pos.row - 1,
+					found.pos.start_col - 1,
+					found.pos.row - 1,
+					found.pos.end_col,
+					{ converted }
+				)
+			end
 		end
 	end
 end
diff --git a/lua/convert/init.lua b/lua/convert/init.lua
index 0c2a022..4cd9d0d 100644
--- a/lua/convert/init.lua
+++ b/lua/convert/init.lua
@@ -25,12 +25,12 @@ M.find_next = function()
 
 	for row = next_row, #lines, 1 do
 		local line = lines[row]
-		local found_unit = utils.find_unit_in_line(line, row)
+		local found_units = utils.find_all_units_in_line(line, row)
 
 
-		if found_unit ~= nil then
-			vim.api.nvim_win_set_cursor(current_win, { row, found_unit.pos.start_col - 1 })
-			ui.open_win(found_unit)
+		if found_units ~= nil then
+			vim.api.nvim_win_set_cursor(current_win, { row, found_units[1].pos.start_col - 1 })
+			ui.open_win(found_units)
 			return
 		end
 	end
@@ -46,11 +46,11 @@ M.find_current = function()
 
 	line = string.rep(" ", #current_line - #line) .. line
 
-	local found_unit = utils.find_unit_in_line(line, cursor_pos.row)
+	local found_units = utils.find_all_units_in_line(line, cursor_pos.row)
 
-	if found_unit ~= nil then
-		vim.api.nvim_win_set_cursor(current_win, { cursor_pos.row, found_unit.pos.start_col - 1 })
-		ui.open_win(found_unit)
+	if found_units ~= nil and #found_units > 0 then
+		vim.api.nvim_win_set_cursor(current_win, { cursor_pos.row, found_units[1].pos.start_col - 1 })
+		ui.open_win(found_units)
 	end
 end
 
diff --git a/lua/convert/ui/open_popup.lua b/lua/convert/ui/open_popup.lua
index cc23da9..17cd4ee 100644
--- a/lua/convert/ui/open_popup.lua
+++ b/lua/convert/ui/open_popup.lua
@@ -4,20 +4,20 @@ local utils = require("convert.utils")
 local config = require("convert.config")
 
 local size_units = {
-  'px',
-  'rem',
-  'cm',
-  'in',
-  'mm',
-  'pt',
-  'pc'
+	'px',
+	'rem',
+	'cm',
+	'in',
+	'mm',
+	'pt',
+	'pc'
 }
 
 
 local color_units = {
-  'rgb',
-  'hex',
-  'hsl'
+	'rgb',
+	'hex',
+	'hsl'
 }
 
 local number_units = {
@@ -27,19 +27,19 @@ local number_units = {
 }
 
 local color_menu = {
-  Menu.item('rgb'),
-  Menu.item('hex'),
-  Menu.item('hsl'),
+	Menu.item('rgb'),
+	Menu.item('hex'),
+	Menu.item('hsl'),
 }
 
 local size_menu = {
-  Menu.item('px'),
-  Menu.item('rem'),
-  Menu.item('cm'),
-  Menu.item('in'),
-  Menu.item('mm'),
-  Menu.item('pt'),
-  Menu.item('pc'),
+	Menu.item('px'),
+	Menu.item('rem'),
+	Menu.item('cm'),
+	Menu.item('in'),
+	Menu.item('mm'),
+	Menu.item('pt'),
+	Menu.item('pc'),
 }
 
 local number_menu = {
@@ -48,66 +48,81 @@ local number_menu = {
   Menu.item('octal'),
 }
 
-local M = {}
+--- Opens popup window for convert in a single line
+---@param found_units matched[]
+M.open_win = function(found_units)
+	if not found_units or #found_units == 0 then return end
 
----@param found_unit matched
-M.open_win = function(found_unit)
-  local lines = nil
+	local from_unit = found_units[1].unit
+	local from_val = found_units[1].val
 
-  if utils.contains(color_units, found_unit.unit) then
-    lines = color_menu
-  end
+	local lines = nil
 
-  if utils.contains(size_units, found_unit.unit) then
-    lines = size_menu
-  end
-
-	if utils.contains(number_units, found_unit.unit) then
-		lines = number_menu
+	if utils.contains(color_units, from_unit) then
+		lines = color_menu
+	elseif utils.contains(size_units, from_unit) then
+		lines = size_menu
+	else
+		return
 	end
 
-  local popup_opts = {
-    relative = "cursor",
-    position = {
-      row = 2,
-      col = 1,
-    },
-    size = {
-      width = 40,
-      height = #lines,
-    },
-    border = {
-      style = "rounded",
-      text = {
-        top = "[Convert " .. found_unit.val .. " " .. found_unit.unit .. " To]",
-        top_align = "center"
-      },
-    },
-    buf_options = {
-      modifiable = false,
-      readonly = true,
-    },
-    win_options = {
-      winhighlight = "Normal:Normal"
-    }
-  }
-  local menu = Menu(popup_opts, {
-    lines = lines,
-
-    max_width = 100,
-    keymap = config.keymaps,
-    on_submit = function(item)
-      local from_unit = found_unit.unit
-      local to_unit = item.text
-      local from_val = found_unit.val
-      local converted = calculator.convert(from_unit, to_unit, from_val)
-      vim.api.nvim_buf_set_text(0, found_unit.pos.row - 1, found_unit.pos.start_col - 1, found_unit.pos.row - 1, found_unit.pos.end_col,
-        { converted })
-      vim.api.nvim_win_set_cursor(0, { found_unit.pos.row, found_unit.pos.end_col + #to_unit })
-    end
-  })
-
-  menu:mount()
+	local popup_opts = {
+		relative = "cursor",
+		position = {
+			row = 2,
+			col = 1,
+		},
+		size = {
+			width = 40,
+			height = #lines,
+		},
+		border = {
+			style = "rounded",
+			text = {
+				top = "[Convert " .. from_val .. " To]",
+				top_align = "center"
+			},
+		},
+		buf_options = {
+			modifiable = false,
+			readonly = true,
+		},
+		win_options = {
+			winhighlight = "Normal:Normal"
+		}
+	}
+	local menu = Menu(popup_opts, {
+		lines = lines,
+
+		max_width = 100,
+		keymap = config.keymaps,
+		on_submit = function(item)
+			local to_unit = item.text
+			local bufnr = 0
+
+			for i = #found_units, 1, -1 do
+				local match = found_units[i]
+				if match.unit == from_unit then
+					local converted = calculator.convert(from_unit, to_unit, match.val)
+					vim.api.nvim_buf_set_text(
+						bufnr,
+						match.pos.row - 1,
+						match.pos.start_col - 1,
+						match.pos.row - 1,
+						match.pos.end_col,
+						{ converted }
+					)
+				end
+			end
+
+			-- Move cursor to end of last converted unit
+			local last = found_units[#found_units]
+			vim.api.nvim_win_set_cursor(0, { last.pos.row, last.pos.end_col + #to_unit })
+		end
+	})
+
+	menu:mount()
+
 end
 
 return M
diff --git a/lua/convert/utils.lua b/lua/convert/utils.lua
index 6ba4d4c..2bf0a2a 100644
--- a/lua/convert/utils.lua
+++ b/lua/convert/utils.lua
@@ -57,7 +57,62 @@ M.match_unit = function(line)
 	return nil
 end
 
----@return matched | nil
+
+---@param line string
+---@param cursor_row number
+---@return matched[] | nil
+M.find_all_units_in_line = function(line, cursor_row)
+	local results = {}
+	local matched_unit = nil
+
+	for unit, pattern in pairs(units) do
+		local start_pos = 1
+		while start_pos <= #line do
+			local s, e, val = string.find(line, pattern, start_pos)
+			if s == nil then break end
+
+			if unit == 'rgb' or unit == 'hsl' then
+				val = line:match(pattern, start_pos)
+			end
+
+			local num_val = tonumber(val)
+			if num_val then
+				-- If this is the first unit match, set it as the inferred from_unit
+				if not matched_unit then
+					matched_unit = unit
+				end
+
+				-- Only collect matches for the same inferred unit
+				if unit == matched_unit then
+					table.insert(results, {
+						unit = unit,
+						val = num_val,
+						pos = {
+							row = cursor_row,
+							start_col = s,
+							end_col = e,
+						}
+					})
+				end
+			end
+
+			start_pos = e + 1
+		end
+
+		if matched_unit then
+			break -- only process one unit type (inferred one)
+		end
+	end
+
+	if #results > 0 then
+		return results
+	end
+
+	return nil
+end
+
+
+---@return matched[] | nil
 M.find_unit_in_line = function(line, cursor_row)
 	local unit = M.match_unit(line)
 	if unit then