UnitPlanet

Cooking Calculators & Converters

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Whether you are scaling a recipe, converting a European baking measurement, or checking if your oven temperature is right, having accurate unit conversions in the kitchen matters. A tablespoon off in a custard or a cup miscalculation in a bread recipe can mean the difference between a perfect bake and a wasted afternoon. This collection covers the conversions home cooks reach for most often: cups to milliliters, tablespoons to teaspoons, ounces to grams, Fahrenheit to Celsius oven temperatures, and recipe scaling. Every converter uses verified NIST-standard measurements so you can trust the numbers whether you are cooking US recipes abroad or following a metric cookbook in North America.

All Cooking Tools

Cups to Milliliters Converter

Convert US cups to milliliters instantly. 1 cup = 236.588 ml. Includes metric cup difference, quick reference table, and plain-English formula.

Tablespoons to Teaspoons Converter

Convert tablespoons to teaspoons instantly. 1 tablespoon = 3 teaspoons. Includes quick reference table, practical recipe examples, and the reverse conversion.

Ounces to Grams Converter

Convert ounces to grams instantly. 1 oz = 28.3495 g (NIST exact). Includes a quick reference table, practical recipe examples, and the reverse grams-to-ounces conversion.

Oven Temperature Converter (°F to °C)

Convert oven temperatures between Fahrenheit, Celsius, and Gas Mark. Instant results with a full quick-reference table for common baking temperatures.

Recipe Scaler — Scale Any Recipe Up or Down

Scale any recipe up or down instantly. Enter original servings, desired servings, and an ingredient amount to get the scaled quantity. Works for cups, grams, or any unit.

Butter Converter — Sticks, Cups, Grams, Tablespoons

Convert butter between sticks, cups, grams, and tablespoons instantly. 1 stick = ½ cup = 8 tbsp = 113.4 g. USDA-sourced data.

Pounds to Ounces Converter

Convert pounds to ounces (and back) instantly. 1 lb = 16 oz exactly per NIST HB 44. Includes quick reference and cooking context.

US to UK Measurements — Cups, Pints, Tablespoons

Compare US and UK cooking measurements side-by-side: cups, tablespoons, pints, quarts, gallons in mL. Scale for any recipe quantity.

Pan Size Converter — Volume in Cups and mL

Calculate baking pan volume in cups and mL for round, square, and rectangular pans. Enter dimensions to compare pan sizes and find substitutes.

Egg Size Substitution Chart — All USDA Sizes

USDA egg size chart with weights (Peewee to Jumbo) and substitution ratios relative to Large. Sourced from USDA AMS 7 CFR Part 56.

Yeast Converter — Active Dry, Instant, Fresh

Convert yeast between active dry (tsp), instant (tsp), fresh (tsp), and packets. Manufacturer-sourced ratios from Fleischmann's.

Reference Charts

Key Terms