🥣 杯转克（烹饪）Cups to Grams (Cooking)

使用说明与常见问题How-to & FAQ

「杯转克（烹饪）」是什么？What is the Cups to Grams (Cooking) tool?

按常见食材密度把美制杯换成克（默认 1 cup ≈ 240 ml 水重）。面粉、糖、黄油等预置密度仅供烹饪估算；品牌与过筛方式会差 10% 以上，可用「自定义 g/杯」。US cups → grams using common cooking densities (default cup ≈ 240 ml of water). Presets for flour, sugar, butter, etc. are kitchen estimates - brands and packing can differ by 10%+, so use Custom g/cup when you care.

如何使用「杯转克（烹饪）」？How do I use the Cups to Grams (Cooking) tool?

填写杯数并选择食材，按常见密度换算成克；如果知道每杯的准确克数，可填写「自定义 g/杯」。结果会随输入实时更新。Enter the number of cups and pick the ingredient to convert to grams with a typical density; if you know the exact weight per cup, enter it under "Custom g per cup". The result updates as you type.

为什么同是「一杯」克数差很多？Why do grams per cup differ?

杯是体积单位。面粉 loosely scooped 约 120-130 g/cup，而白糖约 200 g、黄油约 227 g。本页预置是常用食谱近似值，不是实验室密度。A cup is volume. Loosely scooped flour is about 120-130 g/cup, white sugar about 200 g, butter about 227 g. Presets are recipe approximations, not lab densities.

美制杯还是公制杯？US cup or metric?

本页按美制液量杯（≈ 236.6 ml，烹饪里常按 240 ml 取整）。英制杯与 250 ml 公制杯不同，不要混用包装上的「杯」而不看地区。This page uses the US liquid cup (≈ 236.6 ml; cooking often rounds to 240 ml). Imperial and 250 ml metric cups differ - check the region on packaging.

边界情况Edge cases

杯数必须大于 0；选「自定义」时密度也必须大于 0，否则会提示错误。结果同时给出千克与所用密度，便于核对。Cups must be > 0; with Custom, density must be > 0 or you get an error. Results also show kilograms and the density used for checking.

「杯转克（烹饪）」免费吗？需要注册吗？Is the Cups to Grams (Cooking) free? Do I need an account?

「杯转克（烹饪）」完全免费，无需注册或安装，打开网页即可使用，手机和电脑都能用；输入的内容只在你的浏览器本地处理。The Cups to Grams (Cooking) is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.