diff --git a/reworked/calc.py b/reworked/calc.py
index 5bfdbe4..ca3e81b 100644
--- a/reworked/calc.py
+++ b/reworked/calc.py
@@ -1,3 +1,5 @@
+from precalc__ import precalc__
+
 global expanded
 def expand_recipe(recipe, recipes, main = False):
 	global expanded
@@ -48,3 +50,9 @@ def calc(element, amount, recipes):
 
 	return expanded, vol_in, vol_out
 
+
+def calc_all(recipes, amount):
+	precalc = {}
+	for el in recipes:
+		precalc[el] = precalc__(calc(el, amount, recipes))
+	return precalc
diff --git a/reworked/db.py b/reworked/db.py
index 0a7263c..6fe6817 100644
--- a/reworked/db.py
+++ b/reworked/db.py
@@ -1,13 +1,14 @@
 import os
 import json
 from reag__ import reag__
+from precalc__ import precalc__
 
-if not os.path.exists('db.json'):
+if not os.path.exists('precalc.json'):
 	db = {}
 	js = json.dumps(db, indent=2)
-	with open('db.json', 'w') as outfile:
+	with open('precalc.json', 'w') as outfile:
 		outfile.write(js)
-	print('Created new db.json')
+	print('Created new precalc.json')
 if not os.path.exists('raw_db.json'):
   db = {}
   js = json.dumps(db, indent=2)
@@ -35,9 +36,13 @@ def save(db, file):
 		raw[el] = class_data
 	write_db(raw, file)
 
-def load(file):
+def load(file, type = 'raw'):
 	raw = read_db(file)
 	db = {}
-	for el in raw:
-		db[el] = reag__(raw[el][0], raw[el][1], raw[el][2])
+	if type == 'raw':
+		for el in raw:
+			db[el] = reag__(raw[el][0], raw[el][1], raw[el][2])
+	elif type == 'precalc':
+		for el in raw:
+			db[el] = precalc__(raw[el])
 	return db
diff --git a/reworked/precalc__.py b/reworked/precalc__.py
new file mode 100644
index 0000000..50a3211
--- /dev/null
+++ b/reworked/precalc__.py
@@ -0,0 +1,7 @@
+class precalc__:
+	def __init__(self, els):
+		self.recipe = els[0]
+		self.vol_in = els[1]
+		self.vol_out = els[2]
+	def get_all(self):
+		return [self.recipe, self.vol_in, self.vol_out]
diff --git a/reworked/update_db.py b/reworked/update_db.py
index bda15c2..1efac9a 100644
--- a/reworked/update_db.py
+++ b/reworked/update_db.py
@@ -1,23 +1,43 @@
 from parse import *
-from calc import calc
+from calc import *
 from db import *
 
-'''
-# Загружаем локализацию
-locales_url = ['medicine', 'chemicals']
-locales = load_locales(locales_url)
+print('''1. Обновить всё.
+2. Пересчитать рецепты.
+''')
+inp = input(">> ")
+print('\n')
 
-# Загружаем сырые рецепты
-recipes_url = ['medicine']
-raw_recipes = load_recipes(recipes_url)
+vols = [30, 50, 100]
+if inp == '1':
+	print('Парсим и обрабатываем данные...')
+	# Загружаем локализацию
+	locales_url = ['medicine', 'chemicals']
+	locales = load_locales(locales_url)
 
-# Локализируем
-recipes = localize(raw_recipes, locales)
-# Сохранаяем данные
-save(recipes, 'raw_db.json')
-'''
+	# Загружаем сырые рецепты
+	recipes_url = ['medicine']
+	raw_recipes = load_recipes(recipes_url)
 
-rec = load('raw_db.json')
+	# Локализируем
+	recipes = localize(raw_recipes, locales)
 
-# Делаем предрасчёты
-#calculated = 
+	save(recipes, 'raw_db.json')
+	print('Сохранены минимальные рецепты в raw_db.json')
+	print('Выполняем предрасчёты...')
+
+	for i in vols:
+		precalc = calc_all(recipes, i)
+		save(precalc, f'{i}_calc.json')
+		print(f'Данные сохранены в {i}_calc.json')
+elif inp == '2':
+	print('Выполняем расчёты...')
+	recipes = load('raw_db.json')
+	for i in vols:
+		precalc = calc_all(recipes, i)
+		save(precalc, f'{i}_calc.json')
+		print(f'Данные сохранены в {i}_calc.json')
+else:
+	exit()
+
+print("ГОТОВО.")