Cooking Measurement Converter – Convert Kitchen Units Instantly
Whether you are following a recipe that mixes US customary and metric units, baking from a UK cookbook that uses Gas Mark oven settings, or trying to weigh out flour in grams when the recipe says "2 cups", this cooking measurement converter gives you accurate kitchen conversions in seconds. It handles volume-to-volume, weight-to-weight, temperature, and — uniquely — ingredient-specific volume-to-weight conversions using a library of 40+ culinary density values.
Supported Unit Families
The converter works across three distinct measurement families used in cooking:
- Volume — teaspoon (tsp), tablespoon (tbsp), fluid ounce (fl oz), cup (US), pint, quart, gallon, millilitre (mL), centilitre (cL), decilitre (dL), and litre (L).
- Weight — ounce (oz), pound (lb), gram (g), and kilogram (kg).
- Temperature — Fahrenheit (°F), Celsius (°C), and UK Gas Mark.
Conversions within the same family are straightforward. Converting across families — for example cups to grams — requires selecting an ingredient, because the same volume of different ingredients weighs completely different amounts.
Why Volume ≠ Weight Without an Ingredient
A common source of confusion in baking is that recipes from different regions use different measurement approaches. American recipes say "2 cups of flour"; European recipes say "250 g of flour." These are not interchangeable without knowing the density of flour. One cup of all-purpose flour weighs approximately 125 g when sifted, but up to 150 g when packed. One cup of granulated sugar weighs approximately 200 g, and one cup of honey weighs about 340 g — nearly three times the flour.
This converter solves that problem by including a density library sourced from USDA FoodData Central and standard culinary references. Select your ingredient, enter the volume, and get the equivalent weight — or enter a weight and get the volume.
Oven Temperature Conversion (Gas Mark)
UK recipes often specify oven temperatures using the Gas Mark scale rather than degrees Fahrenheit or Celsius. Gas Mark 4 equals roughly 350 °F / 180 °C — a common moderate baking temperature. Each whole Gas Mark step represents approximately 25 °F. This converter lets you enter a Gas Mark number and receive the corresponding °F or °C value so you can set your oven correctly.
Conversion Formulas
All volume conversions normalise through millilitres: result = (value × from_factor) / to_factor, where each unit's factor is its exact mL equivalent (e.g., 1 US cup = 236.588 mL; 1 tablespoon = 14.7868 mL; 1 teaspoon = 4.92892 mL). Weight conversions use grams as the base unit (1 oz = 28.3495 g; 1 lb = 453.592 g). Temperature uses the standard formula: °C = (°F − 32) × 5/9.
Common Cooking Equivalents
A few relationships are useful to memorise for quick kitchen maths:
- 1 cup = 16 tablespoons = 8 fluid ounces = 240 mL
- 1 tablespoon = 3 teaspoons = 15 mL
- 1 pint = 2 cups = 473 mL
- 1 quart = 4 cups = 946 mL
- 1 gallon = 16 cups = 3.785 L
- Gas Mark 4 ≈ 350 °F ≈ 180 °C (standard moderate oven)
Tips for Accurate Baking Measurements
Volume measurements introduce variability because of how ingredients settle. For baking — where precision matters — weighing dry ingredients with a kitchen scale is more reliable than cup measurements. Use this tool to convert your recipe's volume measurements to weights, then weigh directly for best results. The ingredient density values represent typical measurements; if your recipe specifies "sifted" or "firmly packed," the actual weight may differ slightly from the converter's output.
Who This Tool Is For
This converter is useful for home bakers adapting US recipes to metric, professional cooks following international recipe sources, students in culinary programmes studying different measurement systems, and anyone who wants a quick reference without hunting through printed conversion tables. It works entirely in the browser — no sign-up, no server calls, no waiting.