Food & Cooking

Food & Cooking Calculators, Guides & Tools

Use free UK-friendly tools for recipe scaling, kitchen unit conversions, oven temperatures, food calories, grocery costs and food waste — practical maths for cooking and shopping.

Recipe scaling Kitchen units Oven temperatures Food costs

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Recipe Scaler

Scale a recipe up or down by changing the number of servings. Add ingredient rows, choose a rounding style and see the scaled quantities in a clear kitchen-friendly format.

Original servings Desired servings Kitchen rounding

Example result 4 servings → 10 servings = ×2.5 Useful for doubling recipes, batch cooking, family meals and adjusting ingredients before you shop. Use recipe scaler

Food and cooking calculators

Choose the tool that matches what you need to work out: servings, ingredients, oven settings, calories, grocery totals or food waste.

Primary tool Recipe Scaler Scale a recipe up or down from original servings to desired servings, with ingredient rows and kitchen-friendly rounding. Kitchen units Cooking Unit Converter Convert teaspoons, tablespoons, cups, millilitres, litres, grams, kilograms, ounces and pounds. Ovens Oven Temperature Converter Convert between Celsius, Fahrenheit, fan oven estimates and UK gas marks. Food calories Calorie Counter by Food Estimate calories for common foods by portion, grams, millilitres or serving quantity. Shopping Grocery Cost Calculator Add grocery rows, discounts and servings to estimate total cost, cost per person and cost per serving. Waste cost Food Waste Cost Calculator Estimate the weekly, monthly and yearly cost of wasted food, plus potential savings from reducing waste.

Common food and cooking jobs

Food & Cooking is built around everyday kitchen maths: portions, measurements, temperatures, food costs and estimates.

Scale recipes properly Use the recipe scaler when you need to double, halve or resize a recipe for a different number of servings.

Convert kitchen measurements Use the cooking unit converter for teaspoons, tablespoons, cups, millilitres, grams and kilograms.

Plan food costs Use grocery and food waste calculators to estimate cost per serving, weekly spend and wasted-food value.

Cooking conversion note

Some kitchen conversions are approximate. Cups-to-grams depends on ingredient density, and oven temperatures can vary by oven model, fan setting and recipe style.

Food and cooking guides

Read practical guides that explain the most common kitchen maths mistakes behind scaling recipes, converting cups, using gas marks and working out food costs.

Guide How to Scale a Recipe Up or Down Learn how scale factors work, when to round ingredients and which ingredients need judgement. Conversions Cups to Grams: Why Cooking Conversions Are Not Always Exact Understand why flour, sugar, butter and liquids convert differently from cup measurements. Ovens Oven Temperatures Explained: Celsius, Fahrenheit, Fan and Gas Mark Compare common UK oven settings and understand why fan oven temperatures are lower. Shopping How to Work Out the Cost Per Serving Use grocery totals, servings and leftovers to estimate what each meal actually costs. Food waste How Much Food Do You Waste Each Week? Turn wasted food into weekly, monthly and yearly cost estimates.

Food and cooking glossary

Quick definitions for the terms that appear across recipe scaling, kitchen conversions, oven settings and food cost calculations.

GlossaryServingA suggested amount of food for one person or one portion of a recipe. GlossaryPortionThe amount of food actually served or eaten. GlossaryRecipe yieldThe number of servings, pieces or portions a recipe produces. GlossaryScale factorThe multiplier used to scale ingredient quantities up or down. GlossaryCup measurementA volume measurement used in recipes, often needing ingredient-specific conversion to grams. GlossaryTablespoonA kitchen volume unit commonly used for larger small ingredient amounts. GlossaryTeaspoonA kitchen volume unit commonly used for small ingredient amounts. GlossaryGas markA UK oven temperature setting used on many gas ovens and recipe charts. GlossaryFan ovenAn oven that circulates hot air and often uses a lower temperature than a conventional oven. GlossaryCost per servingThe total recipe or meal cost divided by the number of servings produced.

Make cooking and shopping maths easier

Start with the recipe scaler for the broadest use case, or jump straight into unit conversion, oven temperature, calories, grocery costs or food waste.

Use recipe scaler Estimate grocery cost