That's why the Manchester Evening News have been keeping a close eye on the prices. They include Quality Street, Heroes, Celebrations and Roses. The table below shows the average weight per Celebrations chocolate in both metric and imperial weights and calories are based on the assumption that each gram contains 4.94kcal per gram. This means that Celebrations’ 650g boxes are the cheapest to buy at 77p per 100g, while the smallest Quality Street box works out most expensive. Christmas chocolates can vary in price - so which supermarket is currently cheapest? (Image: Richard Baker / In Pictures via Getty Images)

Please note, this information is based on what I counted in a typical tub, and amounts may vary. Mars Celebrations Chocolate Type That's why we've been keeping a close eye on the prices on these festive confectionery tins, including Quality Street, Heroes, Celebrations and Roses, in the run up to December. There are a total of 72 chocolates per 664g (650g net weight excluding wrappers) tub of Mars Celebrations giving an average weight per chocolate of around 9g/0.32oz.

We'll compare the price of the top four Christmas chocolate tubs each week (Image: Manchester Evening News)

I counted the chocolates in a 650g tub of Mars Celebrations to find out how many chocolates you get per tub and here are the results:For reasons of hygiene and safety, personal grooming products, cosmetics or items of intimate clothing cannot be returned. Sugar, Glucose Syrup, Cocoa Butter, Skimmed 𝐌𝐢𝐥𝐤 Powder, Cocoa Mass, 𝐌𝐢𝐥𝐤 Fat, 𝐏𝐞𝐚𝐧𝐮𝐭𝐬, Palm Fat, Desiccated Coconut, 𝐖𝐡𝐞𝐚𝐭 𝐅𝐥𝐨𝐮𝐫, LACTOSE, Whey Permeate (from 𝐌𝐢𝐥𝐤), Sunflower Oil, Full Cream 𝐌𝐢𝐥𝐤 Powder, Emulsifiers (𝐒𝐨𝐲𝐚 Lecithin, E471), 𝐁𝐚𝐫𝐥𝐞𝐲 𝐌𝐚𝐥𝐭 Extract, Salt, Fat Reduced Cocoa, Humectant (Glycerol), 𝐄𝐠𝐠 White Powder, Vanilla Extract, Raising Agents (E341, E500, E501), 𝐌𝐢𝐥𝐤 Protein, Starch, 𝐖𝐡𝐞𝐚𝐭 𝐆𝐥𝐮𝐭𝐞𝐧, Whey Powder (from 𝐌𝐢𝐥𝐤), 𝐌𝐢𝐥𝐤 Chocolate contains 𝐌𝐢𝐥𝐤 Solids 14% minimum and Cocoa Solids 25% minimum

There is no Christmas without chocolate, the best ones include the obvious fan-favourite Cadbury's Caramel and Strawberry Dreams, while Bountys continue to divide opinion. However, we all know it's best to wait for the family chocolate tins to go on sale - there's no chance you'll catch us paying full price when you're guaranteed to find them cheaper elsewhere. There are fewer than 12 weeks left until Christmas Day and the supermarket giants are battling it out to be the cheapest for all of the big day essentials. Some of their offers may seem like they're the best price but that is not always the case. A 600g box of Heroes is the same price as Quality Street, as is the 600g of Roses and 650g of Celebrations. The table below shows you how many of each type of chocolate you can expect in a standard 650g tub of Mars Celebrations. Unwanted Food or Drink Products - Once supply conditions are broken, there are a number of factors outside of our control that can affect the quality of a product. Therefore perishable goods such as food and drink cannot be returned.Use the calculator below to work out the weight and calories for your serving of Mars Celebrations. GB: Freepost Mars Wrigley Confectionery UK Ltd. IE: Mars Foods Ireland Ltd., PO Box 3856, Dublin 4.

There are less than 12 weeks until Christmas and supermarkets are going head to head in a bid to be the cheapest to bag everything you need for the big day, from toy sales to price cuts on essentials. Big shiny offers and discounts may make you feel as though you're getting the best price, but that's not always the case.

Please note, calorie figures are not exact and are based on averages from the nutritional information available. Mars Celebrations Chocolate Type I weighed Mars Celebrations chocolates from a 664g tub (650g net weight excluding wrappers) to get an average weight per chocolate for each type.