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Cooking Measurement Converter

Convert cooking measurements between cups, tablespoons, ounces, grams, °F, °C and gas mark — instantly, all in your browser.

Privacy: your files never leave your device. All processing happens locally in your browser.

How to use

  1. 1.Choose a conversion type: Volume, Weight, or Temperature. The tool never mixes categories, because volume-to-weight depends on each ingredient's density.
  2. 2.Type the amount you want to convert into the Amount box (for example 2 for two cups).
  3. 3.Pick the unit to convert From and the unit to convert To; use the swap button to reverse the direction instantly.
  4. 4.Read the converted result, then click Copy result to put it on your clipboard. Volume and weight use US customary units by default.

About Cooking Measurement Converter

Cooking Converter is a fast, free tool for turning one kitchen measurement into another while you cook, bake, or scale a recipe. Recipes come from all over the world and mix units freely: an American blog lists a cup of flour and two tablespoons of butter, a European site gives 250 grams and 180 °C, and a British recipe tells you to set the oven to gas mark 4. This converter bridges those systems so you can follow any recipe with the tools and oven you already have, without guessing or reaching for a separate chart. It handles three independent kinds of measurement. Volume covers teaspoons, tablespoons, fluid ounces, cups, pints, quarts, gallons, milliliters, and liters — perfect for liquids and for the cup-based measuring that American recipes rely on. Weight covers grams, kilograms, ounces, and pounds, which is how most of the world and every serious baker measures dry ingredients for accuracy. Temperature covers Celsius, Fahrenheit, and the British gas mark oven scale, so you can dial in the right heat no matter how the recipe states it. Pick a category, type an amount, choose the units to convert from and to, and the answer appears immediately; a swap button flips the direction and a copy button puts the result on your clipboard. A very important design decision: this tool deliberately does NOT convert between volume and weight — it will not turn cups into grams or milliliters into ounces. That conversion depends entirely on the ingredient's density, and a cup of flour, a cup of sugar, a cup of honey, and a cup of water all weigh different amounts. Any tool that pretends one cup always equals a fixed number of grams is simply wrong for most ingredients. To keep results trustworthy, Cooking Converter stays within each measurement type: volume to volume, weight to weight, temperature to temperature. For ingredient-specific density conversions you should use a dedicated ingredient chart. All volume and weight conversions use United States customary units by default. This matters because a cup is not universal: a US customary cup is about 236.6 mL, a UK imperial cup is about 284.1 mL, and a metric cup is 250 mL. Unless a recipe says otherwise, US measurements are the most common online, so US customary is the safe default; the interface states this clearly so you are never misled about which system is in use. The underlying factors are exact, derived from the US fluid ounce definition and the 1959 international yard and pound agreement, not rounded kitchen approximations, so scaling a recipe up or down stays precise. Privacy is built in: every calculation happens locally in plain JavaScript inside your browser. There is no sign-up, no account, and nothing you type is ever uploaded or tracked — the page keeps working even offline once loaded. Whether you are halving a batch of cookies, converting a metric cake recipe for an American kitchen, or setting a gas oven from a Celsius instruction, Cooking Converter gives you an accurate answer in a second.

Methodology & sources

Three independent dimensions, no cross-dimension conversion (volume-to-weight requires per-ingredient density, so it is intentionally omitted). Volume routes through milliliters and defaults to US customary, derived from the exact US fluid ounce (1 US fl oz = 29.5735295625 mL): tsp = fl oz / 6 = 4.9289215938 mL, tbsp = fl oz / 2 = 14.78676478125 mL, cup = 8 fl oz = 236.5882365 mL, pint = 473.176473 mL, quart = 946.352946 mL, gallon = 3785.411784 mL, L = 1000 mL. Weight routes through grams using the 1959 International Yard and Pound Agreement (exact): 1 lb = 453.59237 g, 1 oz = lb / 16 = 28.349523125 g, 1 kg = 1000 g. Temperature uses the exact reversible formula °F = °C × 9/5 + 32; the UK gas mark oven scale is discrete and snaps to the nearest mark on the standard chart (gas 1 = 140 °C … gas 9 = 240 °C). Note: US customary (not UK imperial or the 250 mL metric cup) is the stated default. NIST's home-cooking 'Metric Kitchen' rounded values (cup ~240 mL) are not used for calculation; exact definitions are used instead.

Frequently asked questions

Which cup does this use — US, UK, or metric?
It uses the US customary cup by default, which is about 236.6 mL. That is different from the UK imperial cup (about 284.1 mL) and the metric cup (exactly 250 mL). Most recipes online are American, so US customary is the safest default, and the tool states this on screen so you always know which system you are in.
Why can't I convert cups to grams or milliliters to ounces?
Because those cross between volume and weight, which depends entirely on the ingredient's density. A cup of flour, sugar, honey, and water all weigh different amounts, so there is no single correct factor. To stay accurate, this tool only converts within one type — volume to volume, weight to weight, temperature to temperature. For ingredient-specific conversions, use a density or ingredient-weight chart.
How is the British gas mark handled?
Gas mark is a discrete UK oven scale rather than a continuous temperature, so it snaps to the nearest mark on the standard chart — gas mark 1 is about 140 °C and gas mark 9 is about 240 °C. Converting a temperature to gas mark returns the closest mark; converting from a gas mark returns that mark's chart temperature.
Are the conversion factors accurate, and is my data private?
Yes. Volume factors come from the exact US fluid ounce definition (1 US fl oz = 29.5735295625 mL) and weight factors from the 1959 international yard and pound agreement (1 lb = 453.59237 g, 1 oz = 28.349523125 g), not rounded kitchen estimates. Everything runs locally in your browser — nothing is uploaded, and there is no sign-up or tracking.

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