Cooking converter

Convert volume↔weight by ingredient and oven temperatures, instantly, in your browser.

How Cooking converter works

The cooking converter turns recipe amounts between volume and weight, covering cups, tablespoons, teaspoons, millilitres, grams and ounces, for the specific ingredient you pick. Volume and weight are not interchangeable without density: a cup of all-purpose flour weighs about 125 g, while the same cup filled with honey weighs about 336 g. The tool applies the correct density for each ingredient automatically. It also converts oven temperatures between Celsius and Fahrenheit. Every conversion is plain arithmetic that runs in your browser; the amounts you type are never sent to a server.

Because real ingredient densities vary with brand, packing method and humidity, the volume-to-weight results are close working approximations rather than laboratory-precise figures. Treat them as a reliable starting point and adjust to taste.

Written by Bastien Sulyan

How to use Cooking converter, step by step

Select whether you want to convert between volume and weight, or just between temperature units.
For volume/weight conversions: choose the ingredient from the list.
Enter the amount and select its unit (cups, tablespoons, teaspoons, ml, grams, or ounces).
Select the target unit you want to convert to.
Read the result immediately; the tool shows the converted amount alongside the density used.

Common use cases

Scaling a US recipe that calls for 2 cups of butter when your kitchen scale reads in grams.
Converting a European bread recipe from grams of flour to cups for a cup-measure set.
Checking whether 3 tablespoons of olive oil is enough when a recipe asks for 40 ml.
Setting your oven temperature correctly when a recipe gives degrees Fahrenheit and your oven shows Celsius.

Frequently asked questions

Why do I need to choose an ingredient?

Volume-to-weight conversions depend on the density of the substance. Water has a density of 1 g/ml, so 1 cup (about 237 ml) weighs 237 g. All-purpose flour has a density around 0.53 g/ml, so the same cup weighs only about 125 g. Honey is much denser at about 1.42 g/ml, making a cup weigh about 336 g. Without selecting the ingredient the calculation would be meaningless.

Are the conversions exact?

The volume-to-volume conversions (such as tablespoons to millilitres) use exact internationally-defined factors. The volume-to-weight conversions are good working approximations based on average ingredient densities. Real densities vary with how tightly a dry ingredient is packed, the brand, temperature and humidity, so weigh critical amounts on a kitchen scale when precision matters.

What is a cup in millilitres?

The US legal cup is defined as exactly 240 ml. The US customary cup is 236.588 ml (approximately 237 ml). This tool uses the US customary cup (236.6 ml), which matches most recipe standards. The metric cup (used in Australia and Canada) is 250 ml.

How is oven temperature converted?

Celsius to Fahrenheit: multiply by 9, divide by 5, then add 32. Fahrenheit to Celsius: subtract 32, multiply by 5, divide by 9. Example: 180 degrees Celsius equals 356 degrees Fahrenheit (roughly gas mark 4). Fan-assisted (convection) ovens typically run 20 degrees Celsius cooler than the stated temperature.

Does it send my recipe data to a server?

No. All conversions are arithmetic operations that run locally in your browser. Nothing you enter is transmitted anywhere, and the tool works with no internet connection once the page has loaded.

Can I convert between different volume units without choosing an ingredient?

Yes. If you are converting between two volume units (for example, tablespoons to millilitres) the ingredient density is not needed and the result is exact. The ingredient selector only affects conversions that cross between volume and weight.

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