体积容积换算覆盖公制（毫升~立方米）、石油（桶/加仑）与英制。1 立方米 = 1000 升；1 美加仑 ≈ 3.785 升（英加仑 ≈ 4.546 升，两者不同需区分）。国际原油交易以桶（bbl）计，1 桶 = 158.987 升。
下表数值含义：第一列单位数值为 1 时，对应各列单位的换算结果。
| 1 ≡ | mL | cm³(cc) | L | m³ | in³ | ft³ | yd³ | US gal | UK gal | bbl | US qt | US pt |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| mL 毫升 | 1 | 1 | 0.001 | 0.000001 | 0.06102374 | 0.00003531 | 0.00000131 | 0.00026417 | 0.00021997 | 0.00000629 | 0.00105669 | 0.00211338 |
| cm³(cc) 立方厘米/毫升 | 1 | 1 | 0.001 | 0.000001 | 0.06102374 | 0.00003531 | 0.00000131 | 0.00026417 | 0.00021997 | 0.00000629 | 0.00105669 | 0.00211338 |
| L 升 | 1000 | 1000 | 1 | 0.001 | 61.02374409 | 0.03531467 | 0.00130795 | 0.26417205 | 0.21996925 | 0.00628981 | 1.05668815 | 2.11337853 |
| m³ 立方米 | 1000000 | 1000000 | 1000 | 1 | 61023.74409473 | 35.31466621 | 1.30795062 | 264.17205124 | 219.9692483 | 6.28981077 | 1056.68814914 | 2113.37853146 |
| in³ 立方英寸 | 16.387064 | 16.387064 | 0.01638706 | 0.00001639 | 1 | 0.0005787 | 0.00002143 | 0.004329 | 0.00360465 | 0.00010307 | 0.01731602 | 0.03463207 |
| ft³ 立方英尺 | 28316.847 | 28316.847 | 28.316847 | 0.02831685 | 1728.0000249 | 1 | 0.03703704 | 7.48051956 | 6.22883555 | 0.17810761 | 29.92207665 | 59.84421653 |
| yd³ 立方码 | 764554.858 | 764554.858 | 764.554858 | 0.76455486 | 46656.00000098 | 26.99999961 | 1 | 201.97402512 | 168.1785574 | 4.80890538 | 807.89605781 | 1615.79382302 |
| US gal 美制加仑 | 3785.4118 | 3785.4118 | 3.7854118 | 0.00378541 | 231.00000098 | 0.13368055 | 0.00495113 | 1 | 0.83267419 | 0.02380952 | 3.99999979 | 8.00000803 |
| UK gal 英制加仑 | 4546.09 | 4546.09 | 4.54609 | 0.00454609 | 277.41943279 | 0.16054365 | 0.00594606 | 1.20094992 | 1 | 0.02859405 | 4.80379943 | 9.60760901 |
| bbl 桶(原油) | 158987.295 | 158987.295 | 158.987295 | 0.1589873 | 9702.00000439 | 5.61458325 | 0.20794753 | 41.99999984 | 34.97231577 | 1 | 167.99999049 | 336.00033603 |
| US qt 美制夸脱 | 946.353 | 946.353 | 0.946353 | 0.00094635 | 57.7500033 | 0.03342014 | 0.00123778 | 0.25000001 | 0.20816856 | 0.00595238 | 1 | 2.00000211 |
| US pt 美制品脱 | 473.176 | 473.176 | 0.473176 | 0.00047318 | 28.87497114 | 0.01671005 | 0.00061889 | 0.12499987 | 0.10408417 | 0.00297619 | 0.49999947 | 1 |