🛢️ 储罐容积计算器Tank Volume Calculator
计算立式/卧式圆柱罐、长方体罐的总容积和按液位高度的已装容积（升、立方米、美制加仑）。Total and filled volume of vertical or horizontal cylindrical tanks and rectangular tanks from the liquid level, in liters, m³ and US gallons.
使用说明与常见问题How-to & FAQ
「储罐容积计算器」是什么？What is the Tank Volume Calculator tool?
计算立式/卧式圆柱罐、长方体罐的总容积和按液位高度的已装容积（升、立方米、美制加仑）。Total and filled volume of vertical or horizontal cylindrical tanks and rectangular tanks from the liquid level, in liters, m³ and US gallons.
如何使用「储罐容积计算器」？How do I use the Tank Volume Calculator tool?
在「储罐容积计算器」中，填写「储罐形状」、「单位」、「直径 / 宽」、「长度（卧式）/ 罐高（立式、长方体）」、「长度（长方体）」等参数，结果会随输入实时计算并显示在下方。In the Tank Volume Calculator: Fill in "Tank shape", "Unit", "Diameter / width", "Length (horizontal) / height (vertical, rectangular)", "Length (rectangular)"; results are recalculated instantly as you type.
各尺寸分别指什么？What does each dimension mean?
卧式圆柱：直径 + 长度，液位从底部量起且不超过直径；立式圆柱：直径 + 罐高；长方体：宽 + 高 + 长度，液位不超过高。字段标签会随形状切换。液位可以为 0（空罐）。Horizontal cylinder: diameter + length, with the fill height measured from the bottom up to the diameter. Vertical cylinder: diameter + tank height. Rectangular: width + height + length, with the fill up to the height. Field labels change with the shape. A fill height of 0 (empty tank) is allowed.
计算精度如何？How precise are the results?
「储罐容积计算器」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 Tank Volume Calculator uses double-precision floating point (about 15–16 significant digits); very large or very small values may lose precision.
「储罐容积计算器」免费吗？需要注册吗？Is the Tank Volume Calculator free? Do I need an account?
「储罐容积计算器」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 Tank 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.