CalcChef tool collection
Cooking and Kitchen Tools
Make recipes more dependable with practical conversion, ratio, timing, and food-preparation helpers for the home kitchen.
Start with these tools
Sweetener Substitution Calculator
Swap sugar for honey, maple syrup or agave: 1 cup of sugar is 1/2 to 2/3 cup of honey (Missouri Extension), plus honey's liquid, baking soda and oven changes.
Bakeware Volume Converter
Pick the pan a recipe uses and the pan you have, from 13 common pans or a custom round or rectangle, to get the factor to scale the recipe by.
Air Fryer Conversion Calculator
Convert oven times and temperatures to air fryer settings and back, in °F or °C, by a rule of thumb: 25°F (15°C) lower and 80% of the time, or the reverse.
Coffee Ratio Calculator
Coffee to water by weight for drip, French press, AeroPress, cold brew, espresso and moka pot or a custom ratio: grams of coffee, water and cups.
Sous Vide Calculator
Sous vide bath temperature and minimum time by thickness and doneness for beef, pork, chicken, salmon and eggs, from Baldwin's tables.
Sourdough Scheduler
Pick a bake date and time to get clock times for the levain feed, autolyse, bulk, shaping and proof, with editable step lengths and a fridge proof.
All Cooking and Kitchen Tools
29 free browser-based tools
Air Fryer Conversion Calculator
Convert oven times and temperatures to air fryer settings and back, in °F or °C, by a rule of thumb: 25°F (15°C) lower and 80% of the time, or the reverse.
Baker's Percentage Calculator
Turn baker's percentages into grams, or a recipe in grams into percentages: total flour is 100%, with hydration, salt, oil, yeast or a starter.
Bakeware Volume Converter
Pick the pan a recipe uses and the pan you have, from 13 common pans or a custom round or rectangle, to get the factor to scale the recipe by.
Canning Altitude Guide
High-altitude canning adjustments: minutes to add in a water bath or steam canner, or pounds for a dial or weighted pressure canner, up to 10,000 ft.
Cat Litter Calculator
Weight of cat litter and number of 14 lb or 6.35 kg bags to fill your boxes once, from box size, depth and count; clay or any litter by its density.
Chocolate Tempering Guide
Tempering temperatures for dark, milk and white chocolate from Callebaut, Michel Cluizel and Valrhona: melt, cool and work, in °C and °F.
Coffee Brewing Guide
Coffee dose and water per serving for pour over, French press, AeroPress, moka pot, espresso, drip and cold brew, with each ratio's source where there is one.
Coffee Ratio Calculator
Coffee to water by weight for drip, French press, AeroPress, cold brew, espresso and moka pot or a custom ratio: grams of coffee, water and cups.
Cold Brew Ratio Calculator
Cold brew coffee from grams of coffee and water in ml, litres, cups or fl oz: the ratio, the yield after the grounds soak up water, and a steep window.
Cooking From Frozen Time Calculator
Cooking time from frozen for meat and poultry: fresh time times 1.5, the USDA FSIS figure of about 50% longer. Fish and vegetables get no multiplier.
Cooking Unit Price Calculator
Unit price for up to five groceries: price, quantity and unit give the cost per gram, per 100 g, per ml or per item, with the cheapest marked.
Dehydrator Guide
Dehydrator temperature, hours and prep for apples, bananas, tomatoes, mushrooms, peppers, jerky and herbs, from NCHFP and university extension guides.
Egg Timer
Boiled egg times for eggs lowered into boiling water: soft 6, medium 8, hard 12 minutes for a large egg, adjusted for egg size and altitude, with an alarm.
Equilibrium Brine Calculator
Salt and sugar for an equilibrium brine from meat and water weights in g, kg, lb or oz and a target salinity, counting the meat as 72% water.
Fabric Yardage Estimator
Yards and metres of fabric for pieces sized in inches or cm: how many fit across 36, 45, 54 or 60 in fabric, with seams, repeat and shrinkage, to 1/8 yd.
Fermentation Brine Calculator
Salt for a vegetable ferment by weight: vegetables plus any brine water times the salt percent, with the tested 2.25 to 2.5% sauerkraut ratio.
Food Yield Calculator
Food yield percentage from as-purchased (AP) and edible-portion (EP) weights, the cost per usable pound, and how much to buy for the weight you need.
Fresh Pasta Calculator
Flour and eggs for fresh pasta by servings and shape, tagliatelle to ravioli: 00, all-purpose or semolina, classic, yolk-rich or no-egg dough, in g or oz.
Knife Sharpening Guide
Sharpening angle per side and total edge angle for chef's, santoku, gyuto, paring, bread and cleaver knives, with a whetstone grit chart.
Plate Cost Calculator
Enter each ingredient's unit cost and quantity to get the plate cost, then a menu price for your target food-cost percentage.
Slow Cooker Converter
Turn a recipe's oven time into Low and High slow cooker ranges from Missouri Extension, switch a recipe between Low and High, or see four oven pairings.
Smoke Point Guide
Smoke points of 38 cooking oils and fats in °F and °C. Enter a cooking temperature to see which oils are listed above or below it.
Sourdough Scheduler
Pick a bake date and time to get clock times for the levain feed, autolyse, bulk, shaping and proof, with editable step lengths and a fridge proof.
Sous Vide Calculator
Sous vide bath temperature and minimum time by thickness and doneness for beef, pork, chicken, salmon and eggs, from Baldwin's tables.
Spice Substitution Finder
14 spice and herb substitutes from university extension tables, such as fresh to dried herbs, allspice, pie spice and garlic, scaled to your amount.
Steak Doneness Calculator
Steak pull temperatures and where they settle after resting, in °F and °C from rare to well done, beside the USDA 145°F minimum.
Sweetener Substitution Calculator
Swap sugar for honey, maple syrup or agave: 1 cup of sugar is 1/2 to 2/3 cup of honey (Missouri Extension), plus honey's liquid, baking soda and oven changes.
Vinaigrette Calculator
Enter the oil or the total dressing in tablespoons and pick a vinegar or citrus juice to get the oil and acid, the ratio (3:1 at 6%) and final acidity.
Yarn Yardage Calculator for Knitting
How much yarn for a sweater, scarf, hat, socks, shawl, mittens or a blanket by size: yards, meters and skeins from yarn weight and gauge, as a rough estimate.