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One stone equals 14 pounds, or 6.35029318 kilograms, in US/UK avoirdupois weight.

One pound equals 0.45359237 kilograms exactly under the international agreement on units.

One inch equals exactly 2.54 centimeters under the international inch standard.

US liquid quart = 0.946352946 L; Imperial quart = 1.1365225 L; US dry quart = 1.10122094 L.

One liter equals 1,000 milliliters in metric units; “milli-” means one-thousandth.

In U.S. cooking, one fluid ounce equals 6 teaspoons (two tablespoons).

One teaspoon equals one-third tablespoon, or about 5 mL versus 15 mL in standard kitchen measures.

In U.S. liquid measures, one quart equals four cups; mind liquid vs dry labels to avoid mix-ups.

In weight measurement, 1 avoirdupois ounce equals exactly 28.349523125 grams.

One US cooking cup equals 236.588 mL; nutrition labels round that to a 240 mL “legal cup.”