Kitchen

Cooking math made simple: scale a recipe up or down, convert cups to grams, work out how long to cook a roast or a ham, and swap ingredients you don't have.

113 free tools in this category. See every tool on Lelifi.

• Air Fryer Conversion CalculatorConvert conventional oven recipes for an air fryer. Adjust baking temperature, c
• Air Fryer Time and Temperature CalculatorConvert an oven recipe to your air fryer in one step. Drop the temperature 25 F
• Air Fryer to Oven ConverterAir fryer to oven converter: turn any air fryer temperature and time into the ov
• Alcohol Dilution CalculatorWork out how much water to add to bring spirits down to a target strength. Uses
• BBQ Grill Size CalculatorWork out the grate area a cookout needs: 72 square inches per adult, 60% of that
• BBQ Party CalculatorEnter adults, children and party hours to get the raw meat, sides, buns, drinks
• Baby Milk Intake CalculatorWork out how much breast milk or formula a baby needs by weight and age: daily o
• Baking Powder Substitute CalculatorOut of baking powder? Use 1/4 tsp baking soda plus 1/2 tsp cream of tartar for e
• Bread Hydration CalculatorEnter flour and water weights to get exact hydration, baker's percentage and dou
• Bread Machine Recipe Ratio CalculatorScale any basic bread machine loaf: about 5 parts flour to 3 parts water, with y
• Bread Spread Calculator: Butter and Cream CheeseWork out how much butter or cream cheese a bread table needs. Enter guests and s
• Brine CalculatorFree brine calculator: work out exactly how much salt and water a wet brine or d
• Brown Sugar Cups to GramsConvert cups of brown sugar to grams and back. One packed cup is about 213 grams
• Brown Sugar Substitute CalculatorOut of brown sugar? Get exact substitutes: white sugar plus molasses, honey, map
• Butter CalculatorConvert butter between sticks, cups, tablespoons, grams and ounces, see calories
• Butter Stick to Grams ConverterOne US stick of butter is 113 grams, 1/2 cup or 8 tablespoons. Convert sticks, c
• Buttermilk Substitute CalculatorMake buttermilk at home: 1 tablespoon of lemon juice or vinegar per cup of milk,
• Cake Flour Substitute CalculatorOut of cake flour? Make it from all-purpose flour and cornstarch: use 1 cup of f
• Cake Pricing CalculatorPrice a cake from real cost: ingredients, packaging, overhead, your hours, profi
• Candy Temperature ChartCandy temperature chart with every stage from thread to hard crack in Fahrenheit
• Chicken Thigh Cooking Time CalculatorFree chicken thigh cooking time calculator: pick your cut and method to get the
• Chocolate Chips Cups to Grams ConverterConvert cups of chocolate chips to grams, ounces and tablespoons, or go from gra
• Cocoa Powder Cups to GramsConvert cocoa powder from cups to grams and back. One US cup is about 86 grams,
• Coffee to Water Ratio CalculatorPick a ratio and a cup size to get the exact coffee dose in grams and tablespoon
• Convection Oven Conversion CalculatorConvert any recipe for a convection oven: drop the temperature 25°F and shorten
• Cookie Cost CalculatorCalculate exact cookie batch costs, per-unit ingredient expenses, baker labor, p
• Cooking Conversion CalculatorConvert cups, tablespoons, milliliters and grams for any recipe: 1 cup is 236.58
• Cornstarch SubstituteBest cornstarch substitutes and the exact ratio for each: all-purpose flour at 2
• Cream Cheese SubstituteNeed a cream cheese swap? Enter how much the recipe needs and see the exact amou
• Cupcake Cost CalculatorCost out a batch of cupcakes with 2026 average prices: ingredients, labor, oven
• Cups to Quarts ConverterConvert cups to quarts and back in one step. One US quart is 4 cups, 32 fl oz or
• Dry to Cooked Pasta CalculatorConvert dry pasta weight to cooked ounces, grams and cups by shape. 8 oz of dry
• Egg Boiling Time CalculatorEgg boiling time calculator: pick egg size, start temperature and doneness to ge
• Egg Freezing CalculatorHow to freeze raw eggs: whites, yolks and whole eggs keep 12 months at 0°F, plus
• Egg Substitute CalculatorFree egg substitute calculator: see how much flax, chia, applesauce, banana or a
• Flour Cups to Grams ConverterConvert cups of flour to grams and back. One cup of all-purpose flour is 125 gra
• Fluid Ounces to Pounds ConversionConvert fluid ounces to pounds by liquid: 16 fl oz of water is 1.04 lb, honey 1.
• Food Cost Percentage CalculatorCalculate restaurant food cost percentage, menu pricing, portion cost, and gross
• Food Freezer Storage ChartFree freezer storage chart: look up how long beef, chicken, fish, soups and left
• Food Safety Temperature ChartSafe minimum internal cooking temperatures for chicken, beef, pork, fish, eggs a
• Fraction to Cups ConverterFree fraction to cups converter. Enter any fraction of a cup and see the exact t
• Freezer Burn GuideHow long food keeps in the freezer and when freezer burn sets in. Pick a food, e
• Fresh to Dry Herb Conversion CalculatorSwap fresh herbs for dried without wrecking dinner. Enter a fresh amount and get
• Fridge Temperature CheckerCheck your fridge and freezer temperatures against the USDA safety limits, and s
• Grams to Calories CalculatorTurn protein, carb and fat grams into calories with the 4-4-9 Atwater factors, t
• Grams to Fluid Ounces ConverterConvert grams to US fluid ounces by liquid: 100 g of water is 3.38 fl oz, but ho
• Grams to Moles CalculatorTurn grams into moles and back with a molar mass table for salt, sugar, baking s
• Grams to Tablespoons CalculatorConvert grams to tablespoons for flour, sugar, butter, and 10 ingredients. See e
• Grams to Tablespoons ConverterConvert grams to tablespoons by ingredient: water is 15 g per tbsp, flour 7.8, h
• Grams to Teaspoons ConverterConvert grams to teaspoons the right way: pick the ingredient, because salt is 5
• Green Bean Casserole for 20Green bean casserole for 20 people: see how many cans of soup, cups of milk, cup
• Half Recipe CalculatorHalf recipe calculator: enter any ingredient amount to scale a recipe down, cups
• Half of 1/2 Cup (and Every Other Measurement)Half of 1/2 cup is 1/4 cup, or 4 tablespoons. Halve, third or quarter any recipe
• Half of 1/3 CupHalf of 1/3 cup is 1/6 cup, which is 2 tablespoons plus 2 teaspoons. Halve, doub
• Half of 1/4 CupHalf of 1/4 cup is 2 tablespoons, 6 teaspoons, 1 fluid ounce or 29.57 mL. Halve,
• Half of 2/3 CupHalf of 2/3 cup is 1/3 cup, which is 5 tablespoons plus 1 teaspoon, or 16 teaspo
• Ham Cooking Time CalculatorFree ham cooking time calculator: enter your ham's weight and type to get minute
• Ham Size CalculatorEnter your guest count and get the ham size to buy in pounds and kg, with bone-i
• Honey Grams to TablespoonsConvert honey grams to tablespoons, teaspoons and cups. One tablespoon of honey
• How Long Can Food Sit Out?Perishable food can sit out 2 hours at room temperature, or 1 hour above 90 F. E
• How Long Does Ground Beef Last?Ground beef lasts 1 to 2 days in the fridge and 3 to 4 months in the freezer. Ch
• How Long Does Rice Last?How long does rice last? See fridge, freezer and pantry shelf life for cooked an
• How Long Is Chicken Good in the Fridge?Raw chicken keeps 1 to 2 days in the fridge and cooked chicken 3 to 4 days at 40
• How Long to Bake a PotatoA medium 12 oz russet takes 50 to 60 minutes at 400 F. Get bake times by potato
• How Many Chicken Wings Per Person?Plan 4 to 6 wings per person as an appetizer and 8 to 12 as a main dish. Get the
• How Many Cups in a Gallon?One US gallon holds 16 cups, 4 quarts, 8 pints or 128 fluid ounces. Convert gall
• How Many Cups in a PoundCups per pound for flour, sugar, butter and 15 more ingredients, with the gram w
• How Many Cups in a Quart?One US quart equals exactly 4 cups. Convert quarts, cups, pints, fluid ounces an
• How Many Ounces in a CupOne cup is 8 fluid ounces, but a cup of flour weighs 4.4 oz and honey 12 oz. Con
• How Many Pizzas for 20 People?Twenty adults need about 8 large pizzas. See the slice math, how kids and side d
• How Many Servings Are in a Cake?A standard 8 inch round cake serves 20 party slices or 24 wedding slices. See fu
• How Many Tablespoons in a CupOne US cup equals 16 tablespoons or 48 teaspoons. Convert any cup fraction to ta
• How Much Coffee Per CupGet the exact grams, tablespoons and scoops for your mug size and brew method, p
• How Much Pasta Per PersonFind the dry pasta per person for a side or a main, in ounces, grams and cups, p
• How Much Turkey Per PersonWork out turkey weight for your table: 1 pound per person for a whole bird, 1.5
• Instant Pot to Slow Cooker ConverterConvert a slow cooker recipe to Instant Pot pressure time, or turn pressure minu
• Leftover Reheating Time CalculatorReheating leftovers: get a safe target temperature of 165°F and estimated times
• Leftover Storage Time CalculatorFind out how long leftovers stay safe in the fridge or freezer. Pick a food, sto
• MG to Teaspoon ConverterConvert milligrams to teaspoons by ingredient: salt 6,080 mg, sugar 4,170 mg and
• Mashed Potatoes Per Person CalculatorPlan mashed potatoes for any crowd: about 0.5 lb of potatoes per person, plus bu
• Meat Cooking Time CalculatorFree meat cooking time calculator: pick beef, pork, lamb or poultry, enter the w
• Microwave Wattage CalculatorConvert a package cooking time from its wattage to your oven's. Get the new time
• Milk Substitute for BakingOut of milk? Enter the cups your recipe needs and see the exact amount of butter
• Molasses SubstituteOut of molasses? Enter the amount you need and get the exact swap in brown sugar
• Oil to Butter ConverterConvert oil to butter and butter to oil in cups, tablespoons or teaspoons. Butte
• Oven to Air Fryer ConverterConvert any oven recipe to the air fryer: lower the temperature by 25 F and the
• Oven to Slow Cooker ConverterTurn an oven recipe into a slow cooker one. Enter the oven temperature and time
• Pancake CalculatorScale pancake batter for any group: flour, milk, eggs and baking powder for the
• Pizza CalculatorCount adults and kids, get the number of pizzas to order at any size, based on 3
• Pizza Price Per Square Inch CalculatorCompare two pizzas by price per square inch. Enter size and price to see the are
• Plate Cost CalculatorAdd ingredient pack prices, yields and a Q factor to get plate cost, food cost p
• Powdered Sugar Cups to GramsConvert powdered sugar from cups to grams and back. One cup of confectioners' su
• Priming Sugar CalculatorCalculate corn sugar, table sugar, or DME for bottle carbonation. Uses residual
• Recipe ConverterScale any recipe to the servings you need, see how a new pan changes batter dept
• Recipe Scale Conversion CalculatorScale any recipe up or down: enter original and new servings and every ingredien
• Self-Rising Flour SubstituteMake self-rising flour at home: each cup is 1 cup all-purpose flour, 1 1/2 teasp
• Slow Cooker to Oven ConverterConvert slow cooker recipes to conventional oven bake times and temperatures. Ca
• Sodium in SaltHow much sodium is in salt by type and amount: one level teaspoon of table salt
• Sour Cream Substitute CalculatorOut of sour cream? Enter how much your recipe needs and get the exact amount of
• Sourdough CalculatorScale any sourdough loaf: enter total flour and get starter, water and salt in g
• Steak Cook Time CalculatorEnter steak thickness and target doneness to get total grill minutes, the intern
• Stuffing Per Person CalculatorFree stuffing per person calculator: enter your guest count and portion size to
• Sugar Cups to Grams ConverterConvert cups of sugar to grams for granulated, brown, powdered and raw sugar. Cu
• Sugar to Honey ConverterConvert sugar to honey in any recipe: swap 1 cup of sugar for 3/4 cup honey, cut
• Turkey Cooking Time CalculatorGet USDA based turkey roasting hours at 325 F, stuffed or unstuffed, plus the 16
• Turkey Size CalculatorEnter your head count to get the turkey size to buy, plus the USDA oven window a
• Turkey Thawing Time CalculatorEnter your turkey's weight to get USDA-based thawing times: about 24 hours per 4
• Uncooked to Cooked Rice CalculatorEnter dry rice in grams or cups and get the cooked weight, cooked cups, and calo
• Vanilla Extract SubstituteNo vanilla extract? Get the exact swap for vanilla bean, bean paste, powder, imi
• What Is Half of 3/4 Cup?Half of 3/4 cup is 6 tablespoons, or 1/4 cup plus 2 tablespoons. Halve, third or
• Yeast Converter: Fresh, Active Dry and Instant YeastConvert fresh cake yeast, active dry yeast and instant yeast by grams, teaspoons
• cc to Grams ConverterConvert cc to grams for flour, sugar, honey, butter and more. One volume, one de
• mL to Tablespoon ConverterConvert milliliters to tablespoons in one step: the US tablespoon is 14.79 mL, t

Kitchen math is mostly about units that do not divide evenly. A recipe written for a crowd does not halve cleanly when it calls for 1/3 cup or a single egg, and a holiday ham gives no clue how long it should stay in the oven. These tools handle the fractions and the timing so you can cook without second-guessing.

Halving without the headache

The whole trick is to drop to a smaller unit first. One cup is 16 tablespoons and 48 teaspoons, so half of 1/2 cup is 1/4 cup, which is 4 tablespoons, 12 teaspoons or about 59 milliliters. Half of 3/4 cup is 6 tablespoons. Half of 1/3 cup is 8 teaspoons, and half of 2/3 cup is 5 tablespoons plus 1 teaspoon.

• Eggs: beat one and use half by volume. A large egg is about 3 1/4 tablespoons, so half is roughly 1 1/2 tablespoons.
• Leaveners: halve baking soda, baking powder and salt exactly, but be gentler with strong spices and scale them to about two thirds.
• Ham: a 10-pound spiral-sliced ham cooks about 100 minutes at 250 F, while a fresh ham needs 20 minutes per pound at 325 F.
• Doubling: pan size and bake time change when you scale up, so a doubled cake needs a wider pan and a longer bake.

Check the internal temperature rather than trusting the clock, because a dial set to 325 F often runs 20 to 40 degrees off.