What is a cooking converter calculator?

A cooking converter calculator is a free online tool that helps you universal converter for any ingredient between volume and weight units. Cooking conversions go through grams as a common base. Ingredient density bridges volume to weight. It runs entirely in your browser with instant results and no sign-up.

Why does my cup of flour weigh differently than yours?

Measuring method matters — dip-and-sweep (scooping with the cup) packs flour denser than spoon-and-level. King Arthur uses 120 g/cup; this calculator uses 125 g/cup (standard USDA). For accuracy in baking, weigh.

Are US cups the same as metric cups?

No. 1 US cup = 236.59 mL. 1 metric cup = 250 mL. 1 UK / imperial cup = 284.13 mL. This calculator uses US cups.

Why volume → weight conversions vary by ingredient?

Density differs. A cup of feathers and a cup of lead have different weights — same for flour vs sugar vs honey. Volume-to-volume and weight-to-weight conversions don't need ingredient info.

Free cooking converter calculator

How it's calculated

How the cooking converter works

Cooking conversions go through grams as a common base. Ingredient density bridges volume to weight.

grams = value × density per cup

or directly cross-unit when both are weight or both are volume

Densities from King Arthur Flour ingredient weight chart; volumes use US measures (1 cup = 236.59 mL, 1 tbsp = 14.79 mL).

Accuracy

How accurate is this cooking converter?

Every formula on this site comes from an established, published source for its field — standard references in mathematics, finance, health, and engineering, not invented in-house. The math is implemented as a pure TypeScript function and tested against published reference values before going live. See the Methodology page for the full sourcing process.

Results are mathematically correct for the inputs provided. They are estimates only— real-world outcomes depend on factors specific to your situation, such as fees, taxes, timing, local rules, and assumptions that can change after the calculation date. See the Disclaimer for the limits on what to rely on a result for.

These pair naturally with this one for decisions that sit nearby.

Questions

Frequently asked questions about the free cooking converter calculator

What is a cooking converter calculator?
A cooking converter calculator is a free online tool that helps you universal converter for any ingredient between volume and weight units. Cooking conversions go through grams as a common base. Ingredient density bridges volume to weight. It runs entirely in your browser with instant results and no sign-up.
Why does my cup of flour weigh differently than yours?
Measuring method matters — dip-and-sweep (scooping with the cup) packs flour denser than spoon-and-level. King Arthur uses 120 g/cup; this calculator uses 125 g/cup (standard USDA). For accuracy in baking, weigh.
Are US cups the same as metric cups?
No. 1 US cup = 236.59 mL. 1 metric cup = 250 mL. 1 UK / imperial cup = 284.13 mL. This calculator uses US cups.
Why volume → weight conversions vary by ingredient?
Density differs. A cup of feathers and a cup of lead have different weights — same for flour vs sugar vs honey. Volume-to-volume and weight-to-weight conversions don't need ingredient info.