🥣 杯 ↔ 茶匙Cups to Teaspoons
1 US cup = 48 tsp。支持杯、茶匙、汤匙、毫升互算。1 US cup = 48 tsp. Units: cup (US), teaspoon (US), tablespoon (US), millilitre.
点击任意一行可复制该结果；小于 0.0001 或不小于 10¹⁵ 的数值用 × 10ⁿ 科学计数法显示Click any row to copy that result. Values below 0.0001 or at least 10¹⁵ are shown in × 10ⁿ notation
使用说明与常见问题How-to & FAQ
「杯 ↔ 茶匙」是什么？What is the Cups to Teaspoons tool?
1 US cup = 48 tsp。支持杯、茶匙、汤匙、毫升互算。1 US cup = 48 tsp. Units: cup (US), teaspoon (US), tablespoon (US), millilitre.
如何使用「杯 ↔ 茶匙」？How do I use the Cups to Teaspoons tool?
在「杯 ↔ 茶匙」中输入数值并选择原单位，表格会同时列出换算到所有其他单位的结果，可一键复制。Enter a value in the Cups to Teaspoons and choose the source unit; the table shows the value in every other unit at once, ready to copy.
一杯是几茶匙？How many teaspoons in a cup?
1 美制杯 = 16 汤匙 = 48 茶匙，1 汤匙 = 3 茶匙，1 茶匙 ≈ 4.93 毫升。1 US cup = 16 tablespoons = 48 teaspoons; 1 tablespoon = 3 teaspoons, and 1 teaspoon ≈ 4.93 mL.
1 杯 等于多少其他单位？How much is 1 cup (US) in the other units?
1 杯 = 48 茶匙 = 16 汤匙 = 236.5882365 毫升（按定义系数计算，最多保留 10 位有效数字）。本页不接受负数：输入负值会提示错误。1 cup (US) = 48 teaspoon (US) = 16 tablespoon (US) = 236.5882365 millilitre (from the defined factors, up to 10 significant digits). Negative values are not accepted here and show an error.
有哪些选项可以调整？What options can I adjust?
「杯 ↔ 茶匙」的设置：「数值」默认 1。每次生成结果都按当前设置处理。Settings in the Cups to Teaspoons — "Value" default 1. The result always uses the current settings.
换算系数准确吗？Are the conversion factors exact?
「杯 ↔ 茶匙」采用国际单位制（SI）或公认标准中的定义值作为换算系数，结果保留约 10 位有效数字。The Cups to Teaspoons uses factors defined by the SI or other recognised standards and shows about 10 significant digits.
「杯 ↔ 茶匙」免费吗？需要注册吗？Is the Cups to Teaspoons free? Do I need an account?
「杯 ↔ 茶匙」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 Teaspoons is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.