🪨 河卵石用量计算器（体积、重量、袋数）River Rock Calculator (Volume, Weight, Bags)

使用说明与常见问题How-to & FAQ

「河卵石用量计算器（体积、重量、袋数）」是什么？What is the River Rock Calculator (Volume, Weight, Bags) tool?

按铺设区域的长、宽（或直接面积）和厚度算需要多少河卵石：体积、重量和袋数，含损耗余量，支持公制和英制。默认密度 1,600 kg/m³（约 1.35 短吨/立方码）。本地处理。Work out how much river rock you need from the length and width (or the area) and the depth: volume, weight and number of bags, with a waste allowance, in metric or US units. Default density 1,600 kg/m³ (about 1.35 short tons per cubic yard). Processed locally.

如何使用「河卵石用量计算器（体积、重量、袋数）」？How do I use the River Rock Calculator (Volume, Weight, Bags) tool?

在「河卵石用量计算器（体积、重量、袋数）」中，填写「单位」、「长度（米或英尺）」、「宽度（米或英尺；留空则长度当作面积）」、「厚度（厘米或英寸）」、「密度 kg/m³」等参数，结果会随输入实时计算并显示在下方。In the River Rock Calculator (Volume, Weight, Bags): Fill in "Units", "Length (m or ft)", "Width (m or ft; leave blank to use Length as the area)", "Depth (cm or in)", "Density, kg/m³"; results are recalculated instantly as you type.

铺多厚合适？How deep should river rock be?

常见做法：小石子（2–3 cm）铺 5 cm 左右，大一点的石子（3–6 cm）铺 5–8 cm，排水沟或护坡可以更厚。下面先铺一层防草布。A common rule is about 5 cm (2 in) for small stones of 2–3 cm, and 5–8 cm (2–3 in) for larger 3–6 cm stones; drainage beds and slopes can be deeper. Lay landscape fabric underneath first.

密度怎么选？Which density should I use?

河卵石堆积密度一般在 1,500–1,700 kg/m³（约 1.25–1.45 短吨/立方码）。供应商给出的数值更准，可以直接改。Loose river rock is usually 1,500–1,700 kg/m³ (about 1.25–1.45 short tons per cubic yard). Use your supplier's figure if you have it.

为什么要加余量？Why add a waste allowance?

地面不平、边角和压实都会多用一些石子，一般多买 5–10%。Uneven ground, edges and settling all use extra stone, so buying 5–10% more is usual.

能举个计算实例吗？Can you show a worked example?

例如在「河卵石用量计算器（体积、重量、袋数）」中填 单位 = 公制：米、厘米、kg，长度（米或英尺） = 10，厚度（厘米或英寸） = 10，密度 kg/m³ = 1600，损耗余量 % = 0，结果区显示：面积：10 m²；体积（含余量）：1 m³；重量：1,600 kg（1.6 t）；ℹ 体积 = 面积 × 厚度 ×（1 + 余量）；重量 = 体积 × 密度。河卵石密度约 1,500–1,700 kg/m³，随石子大小和湿度变化For example, entering Units = Metric: m, cm, kg, Length (m or ft) = 10, Depth (cm or in) = 10, Density, kg/m³ = 1600, Waste allowance, % = 0 in the River Rock Calculator (Volume, Weight, Bags) gives: Area: 10 m²; Volume (with allowance): 1 m³; Weight: 1,600 kg (1.6 t); ℹ volume = area × depth × (1 + allowance); weight = volume × density. River rock is about 1,500–1,700 kg/m³, depending on stone size and moisture

哪些输入会被检查？Which inputs are validated?

「河卵石用量计算器（体积、重量、袋数）」会检查这些输入——「长度（米或英尺）」、「厚度（厘米或英寸）」、「密度 kg/m³」：必须填写，须大于 0；「宽度（米或英尺；留空则长度当作面积）」、「每袋重量（kg 或 lb，可选）」：须大于 0；「损耗余量 %」：不能为负数；绝对值超过 10¹⁵ 的数也会被拒绝。不符合时结果区显示具体提示，不会给出数字。The River Rock Calculator (Volume, Weight, Bags) checks its inputs — "Length (m or ft)", "Depth (cm or in)", "Density, kg/m³": required, must be greater than 0; "Width (m or ft; leave blank to use Length as the area)", "Bag weight (kg or lb, optional)": must be greater than 0; "Waste allowance, %": cannot be negative; numbers above 10¹⁵ in absolute value are rejected too. When a value fails, the result area names the problem instead of showing a number.

有哪些选项可以调整？What options can I adjust?

「河卵石用量计算器（体积、重量、袋数）」的设置：「单位」可选 公制：米、厘米、kg、英制：英尺、英寸、磅（默认 公制：米、厘米、kg）；「长度（米或英尺）」默认 5；「宽度（米或英尺；留空则长度当作面积）」默认 4；「厚度（厘米或英寸）」默认 5；「密度 kg/m³」默认 1600；「损耗余量 %」默认 5；「每袋重量（kg 或 lb，可选）」可留空。每次生成结果都按当前设置处理。Settings in the River Rock Calculator (Volume, Weight, Bags) — "Units": Metric: m, cm, kg, US: ft, in, lb (default Metric: m, cm, kg); "Length (m or ft)" default 5; "Width (m or ft; leave blank to use Length as the area)" default 4; "Depth (cm or in)" default 5; "Density, kg/m³" default 1600; "Waste allowance, %" default 5; "Bag weight (kg or lb, optional)" optional. The result always uses the current settings.

换算系数准确吗？Are the conversion factors exact?

「河卵石用量计算器（体积、重量、袋数）」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 River Rock Calculator (Volume, Weight, Bags) uses factors defined by the SI or other recognised standards and shows about 10 significant digits.

「河卵石用量计算器（体积、重量、袋数）」免费吗？需要注册吗？Is the River Rock Calculator (Volume, Weight, Bags) free? Do I need an account?

「河卵石用量计算器（体积、重量、袋数）」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 River Rock Calculator (Volume, Weight, Bags) is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.