Ready to use
Kitchen & Recipes
Recipe Scaler
Paste an ingredient list and change the number of servings. Fractions, grams, ranges and “to taste” lines are handled for you.
MAPPLE EXPERIMENTAL KITCHEN & LAB
Mapple Food Lab
Practical tools for everyday cooking and eating: resize a recipe, convert a measurement, work out what a dish costs, find the better grocery deal and understand the label on your food.
6 free tools · No sign-up · Works on any phone or computer
Ready to use
Kitchen & Recipes
Kitchen Unit Converter
Convert grams, ounces, cups, spoons, millilitres and oven temperatures using exact standard definitions.
Ready to use
Budget & Shopping
Recipe Cost Calculator
Enter what you paid for each ingredient and how much you used. See the cost of the whole dish and of every serving.
Ready to use
Budget & Shopping
Grocery Unit Price Comparator
Different pack sizes, different prices? Compare the real price per kg, litre or item and find the better deal.
Ready to use
Nutrition & Labels
Nutrition Label Portion Calculator
Copy the numbers from a food label and see the calories, protein, sugar and salt in the amount you actually eat.
Ready to use
Body & Vitals
Adult BMI Calculator
Work out your adult Body Mass Index in metric or imperial units, with WHO categories and the weight range for your height.
In development
Nutrition & Labels
Food vs. Food Comparator
Compare two foods side by side, such as roti and rice, using equal weights or the portions you really eat. Built on reviewed reference data.
Built to give you the right answer
Food Lab tools only do calculations they can do exactly, and they tell you where your own judgement is needed.
Your numbers, exact maths
Each tool works from what you enter: your prices, your portion and your recipe. Unit conversions use the legal definitions of each unit.
Nothing hidden
Every page shows its formula and a worked example, and cites the standard behind a conversion where there is one. Rounded results are labelled as rounded.
No guessing
If a question cannot be answered exactly, such as turning cups into grams without knowing the ingredient, the tool says so rather than inventing a number.
Private by design
Calculations run in your browser, and the numbers you enter are remembered only in this browser, so they are there next time you visit. No account is needed.
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