一立方英尺等于多少加仑？

7.48 美制加仑。反过来，一加仑等于 0.1337 立方英尺。

卧式圆柱罐怎么计算？

总容积用同样的 π r² 乘长度。部分充装则复杂得多，因为液面截面是圆弓形，而不是高度的简单比例。

雨水收集需要多大的罐？

屋面面积（平方英尺）乘降雨量（英寸）再乘 0.623 得加仑。140 平方米的屋面遇 25 毫米降雨可收集约 934 加仑。

装满水的罐有多重？

水每加仑重 8.34 磅，500 加仑的罐约装 4,170 磅水，超过两吨，这还不算罐体自重。

美制加仑和英制加仑有何不同？

英制加仑大约 20%：1 美制加仑等于 0.833 英制加仑。英国或加拿大厂商的资料可能使用英制。

储罐容积计算器

计算立式或卧式圆柱罐、矩形罐和球罐的容积（加仑与升），并可按任意液位给出部分充装量。

公式与数据最后核对于 2026年8月6日 — Cosyslabs

输入

储罐形状

直径（圆柱或球罐）(ft)

高度或圆柱长度(ft)

长度（矩形罐）(ft)

宽度（矩形罐）(ft)

充装液位(%)

Result

Total capacity

564 gallons

At 100% full

564 gallons

Cubic feet: 75.4 ft³
Litres: 2135 L
Imperial gallons: 470 gal

Diagram

Estimates only. Verify with a licensed contractor or supplier before purchasing. Rough Estimator! is not responsible for shortages, overages, or material variances. See our methodology for formulas and sources.

公式

圆柱：V = π × r² × h   ·   矩形：V = 长 × 宽 × 高   ·   球体：V = 4/3 × π × r³

参考资料

Measure what the tool asks for
This calculator works from 直径（圆柱或球罐） in ft, 高度或圆柱长度 in ft and 长度（矩形罐） in ft. Measure the finished area you are covering, not the material — an estimate is only as good as the dimensions you feed it.
What it does with those numbers
圆柱：V = π × r² × h · 矩形：V = 长 × 宽 × 高 · 球体：V = 4/3 × π × r³ Every figure on the page comes out of that one expression, so you can check it by hand.
Choosing a 储罐形状
The 储罐形状 changes the result, so pick the one that matches what you are actually buying rather than leaving the default.
Where the numbers come from
The constants are taken from API Standard 650 — Welded Tanks for Oil Storage and NIST Handbook 44 — Liquid measuring devices, linked in full below. If a figure here disagrees with your supplier's spec sheet, use the spec sheet — it describes the product you are buying.
What this will not tell you
This is a material takeoff, not a bid. It does not price labour, permits, delivery, equipment hire or site preparation, and it assumes a straightforward layout. Complex cuts, difficult access and awkward shapes all cost more than the geometry suggests.

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穿壁接头

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常见问题

先求出立方英尺容积，再乘以 7.48。直径 1.2 米、高 1.8 米的圆柱罐约为 75.4 立方英尺，即约 564 加仑。

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Cite this page

Cosyslabs. (2026). 储罐容积计算器. Rough Estimator!. https://roughestimator.com/zh/tank-volume-calculator

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