Cups, milliliters, gallons, tablespoons: cook and measure without the stress.
Kitchen disasters are usually volume conversions in disguise. American recipes speak in cups and sticks, the rest of the world in milliliters and grams — and the US cup (236.6 ml) is neither the UK cup (284 ml) nor the metric cup (250 ml). Add gallons that differ by 20% between the US and UK, and a foreign recipe becomes a minefield.
Below, every kitchen and liquid converter runs instantly, with the exact factors, per-ingredient guidance for the weight-vs-volume trap, and the 240 ml rounding rule that makes cooking math painless.
From a US recipe asking for 2 cups to a European bottle in centiliters, these converters handle every kitchen and liquid measure: cups, tablespoons, teaspoons, fluid ounces, pints and both US and UK gallons — each with exact factors, the weight-versus-volume warning that saves baked goods, and rounding rules that keep cooking math fast.
Are these converters really free? Yes — unlimited, no account, no paywall. CalculUnits is funded by non-intrusive ads only.
How accurate are the results? Every conversion uses the exact official factor from SI and NIST references, shown on each page so you can verify the math yourself.
Do my values leave my device? No — all calculations run in your browser. Nothing you type is ever sent anywhere.