| VOLUME | ||
| Metric | Imperial/USA | |
| 1 Cubic centimetre | ||
| 1 Cubic metre | = 1000 litres | = 35.314 cubic feet |
| = 1.308 Cubic yards | ||
| 1 Litre | = 0.0353 Cubic foot | |
| = 0.2642 U.S. Gallons | ||
| = 0.2201 Imperial gallon | ||
| 1 Cubic inch | = 16.39 cubic centimetres | |
| 1 Cubic foot | = 0.0283 Cubic metres | = 7.48 U.S. Gallons |
| = 28.32 litres | = 6.23 Imperial gallons | |
| 1 Cubic yard | = 0.7645 cubic metres | |
| 1 U.S. Gallon | = 3.783 litres | = 0.833 Imperial gallons |
| 1 Imperial gallon | = 4.546 litres | = 1.201 U.S. gallons |
| 1 Acre-inch | = 102.8 cubic metres | = 3,630 Cubic feet |
| 1 Acre-foot | = 1,233.5 cubic metres | = 43,560 Cubic feet |
| RATES OF FLOW | ||
| 1 Cubic metre per second | = 35.314 cubic feet per second | |
| 1 Cubic metre per hour | = 0.278 litres per second | = 4.403 U.S. gallons per minute |
| = 3.668 Imp. Gallons per minute | ||
| 1 Litre per second | = 3.6 cubic metres per hour | = 0.0353 cubic feet per second |
| = 15.852 U.S. gallons per minute | ||
| = 13.178 Imp. gallons per minute | ||
| 1 Cubic foot per second | = 0.0283 cubic metres per second | = 448.8 U.S.Gallons per minute |
| = 28.32 litres per second | = 1 acre-inch per hour | |
| (approximately) | ||
| = 2 acre-feet per day | ||
| (approximately) | ||
| 1 U.S. Gallon per minute | = 0.0631 cubic metres per second | |
| 1 Imperial gallon per minute | = 0.07573 litres per second | |