Food & Nutrition Calculators — Australia
Kitchen arithmetic: ratios, scaling and timing. The proportions are the same in every kitchen; only the units and the wording follow local practice.
Baking & dough
Baker's Percentage Calculator
Turn baker's percentages into real weights — flour, water, salt and yeast — and see the hydration that decides how your dough handles.
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Pizza Dough Calculator
Work back from how many pizzas you want to the flour, water, salt and yeast — with the ball weight that suits your pan or peel.
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Sourdough Starter Calculator
Work out what to feed a sourdough starter at any ratio — and how much flour and water the levain actually contributes to your dough.
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Cake Tin Conversion Calculator
Swap a recipe from one cake tin to another — round or square, any size — with the batter adjustment and a sensible change to the baking time.
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Oven Temperature Calculator
Oven temperatures across Celsius, Fahrenheit and gas mark — with the fan-forced adjustment and what it does to the cooking time.
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Baking Substitution Calculator
The right quantity of a substitute for a common baking ingredient — eggs, butter, milk, sugar, flour — from how much the recipe calls for and which replacement you are using, with the ratio behind it and what to expect from the swap.
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Yeast Conversion Calculator
Swap between fresh, active dry and instant yeast without changing how the dough rises.
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Self-Raising Flour Calculator
How much baking powder (and salt) turns plain flour into self-raising flour for a recipe.
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Egg Substitute Calculator
The quantity of a chosen egg replacement for the number of eggs in a recipe — flax or chia egg, applesauce, banana, silken tofu, yoghurt, aquafaba or a commercial replacer — and what each is good for.
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Cups to Grams Calculator
Cups converted to grams for the ingredient in your hand — flour, sugars, butter, oats, rice, cocoa, honey and others — because a cup of flour and a cup of sugar weigh very different amounts.
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Butter Conversion Calculator
Butter in every measure a recipe might use — sticks, cups, tablespoons, grams and ounces — from whichever one you have.
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Cooking & temperature
Oven Temperature Converter
Convert oven temperatures between Celsius, Fahrenheit and gas mark — and between fan and conventional, which is the one most recipes forget to tell you.
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Rice Water Ratio Calculator
How much water for how much rice, by type — with the cooked yield and how many it serves.
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Roasting Time Calculator
How long to roast a joint or bird by weight and how you want it done — with the resting time and the internal temperature that actually decides it.
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Brine Calculator
How much salt for a wet or dry brine — by the percentage that actually controls the result, with the sugar and the timing.
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Cooking Measurement Converter
Convert between cups, spoons, millilitres, grams and ounces — with the density of the ingredient, because a cup of flour and a cup of sugar are not the same weight.
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Turkey Cooking Time Calculator
How long a turkey takes and when to put it in — with the thaw time, resting time and the temperature that actually matters.
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Brine Concentration Calculator
How much salt a brine needs at a given strength — and the equivalent dry-cure weight, which is the same chemistry with far less water.
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Air Fryer Conversion Calculator
Turn an oven recipe’s temperature and time into air-fryer settings.
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Fresh to Dried Herbs Calculator
How much dried herb replaces a fresh one, and the other way round.
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Dry to Cooked Weight Calculator
What a dry weight of pasta, rice, grains or pulses becomes once cooked, and how many people it feeds.
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Egg Boiling Time Calculator
How long to boil an egg for a runny, jammy or hard yolk, adjusted for its size, whether it came from the fridge, and your altitude.
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Steak Cooking Time Calculator
How long to cook a steak on each side for the doneness you want, from its thickness — and the temperature to pull it at.
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Turkey Thawing Calculator
How long a frozen turkey (or any large bird or joint) takes to thaw safely in the fridge or in cold water, and when to start.
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Ham Cooking Time Calculator
How long to heat or cook a ham by weight and type — fully cooked bone-in or boneless, spiral-cut, or an uncooked fresh ham — with the internal temperature to aim for and when to glaze.
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Coffee & alcohol
Coffee Ratio Calculator
How much coffee for how much water, at any brew ratio — for filter, French press, pour-over or a full pot.
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ABV Calculator
Work out alcohol by volume from the original and final gravity of a brew — with the attenuation that tells you how far fermentation actually went.
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Alcohol Dilution Calculator
How much water to add to bring a spirit down to the strength you want — and what volume you end up with.
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Standard Drinks Calculator
How many standard drinks — or UK units — are in a glass, bottle or round, from its size and strength.
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Caffeine Intake Calculator
A day's caffeine from coffees, teas, energy drinks and colas — at the caffeine each typically carries, which you can adjust — against the usual adult limit, with the amount per kilogram of body weight and how many more of your main drink the limit allows.
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Drink Chilling Time Calculator
How long a can or bottle takes to reach drinking temperature in the fridge, the freezer, or a bucket of iced water.
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Priming Sugar Calculator
How much sugar to add at bottling so home-brewed beer carbonates to the level you want — allowing for the CO₂ already in it.
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Tea Brewing Calculator
The right water temperature, steeping time and amount of leaf for each kind of tea — and roughly how much caffeine is in the pot.
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Planning & portions
Recipe Scaling Calculator
Scale any recipe to the number of servings you actually want — with the scaling factor applied to an ingredient, and a note on what does not scale linearly.
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Party Food Calculator
How much food to buy for a party — mains, sides, nibbles and bread — scaled by guest count, how long it runs and how hungry the crowd is.
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Calories Per Serving Calculator
Split a recipe's total energy across its servings — in both calories and kilojoules, with the per-100 g figure that matches a food label.
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Cake Serving Calculator
How many servings a cake gives — by tin size and shape — and what size you need for a guest count.
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Food Cost Per Serve Calculator
What a dish costs per serve once waste and trim are counted — and the menu price that reaches a target food-cost percentage.
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Meal Prep Portions Calculator
How much to cook for a week of meals — portions, total weight, container count and what it costs per meal against buying lunch.
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Daily Intake Percentage Calculator
How a day's eating measures against daily targets for the nutrients most labels track — sodium, fibre, added sugar, saturated fat, potassium and calcium — with each as a percentage of its target, which are over or under, and the gaps.
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Per 100 g to Serving Calculator
Turn a nutrition label's per-100 g figures into what a serving of any size contains — energy, protein, fat, carbohydrate, sugar and sodium — with the serving's share of a daily energy figure and the servings in the pack.
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Cake Pricing Calculator
A price for a cake or bake that covers ingredients, your hours, overheads and a margin — and what that is per serving.
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Fibre Intake Calculator
How much dietary fibre you need a day from your energy intake — the 14 grams per 1,000 kcal rule — and how far your current intake is from it, in real foods.
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Sugar to Teaspoons Calculator
Turn the grams of sugar on a label into teaspoons and sugar cubes, and see what share of a daily limit one serving — or the whole pack — takes.
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Food Energy Density Calculator
The energy density of a food from its label — calories per gram — with the low / medium / high band it falls in and the energy in your serving.
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Pizza Party Calculator
How many pizzas to order for a party from the number of adults and children, how hungry they are and how the pizzas are cut.
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About these calculators
These calculators use ratios and physical constants rather than nutritional advice. Weights are more reliable than volumes in baking — a cup of flour can vary by 20% depending on how it is filled — so metric weights are given throughout with imperial alongside. Roasting times are guides to be confirmed with a probe thermometer, not substitutes for one.