🛢️ 圆柱体积计算器Cylinder Volume Calculator
由半径（或直径）和高计算圆柱体积、侧面积、表面积，并换算为升和加仑。Cylinder volume, lateral and total surface area from radius (or diameter) and height, with liters and gallons.
使用说明与常见问题How-to & FAQ
「圆柱体积计算器」是什么？What is the Cylinder Volume Calculator tool?
由半径（或直径）和高计算圆柱体积、侧面积、表面积，并换算为升和加仑。Cylinder volume, lateral and total surface area from radius (or diameter) and height, with liters and gallons.
如何使用「圆柱体积计算器」？How do I use the Cylinder Volume Calculator tool?
在「圆柱体积计算器」中，填写「半径或直径」、「输入的是」、「高」、「长度单位」等参数，结果会随输入实时计算并显示在下方。In the Cylinder Volume Calculator: Fill in "Radius or diameter", "Value is the", "Height", "Length unit"; results are recalculated instantly as you type.
计算精度如何？How precise are the results?
「圆柱体积计算器」使用 JavaScript 双精度浮点数（约 15–16 位有效数字）；极大或极小的数值可能存在精度误差。The Cylinder Volume Calculator uses double-precision floating point (about 15–16 significant digits); very large or very small values may lose precision.
「圆柱体积计算器」免费吗？需要注册吗？Is the Cylinder Volume Calculator free? Do I need an account?
「圆柱体积计算器」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 Cylinder Volume Calculator is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.