Convert Cubic Kilometer (km³) to Acre-Inch (ac*in) instantly.
About these units
Cubic Kilometer (km³)
A cubic kilometer represents one billion cubic meters, making it a colossal volume unit used in geology, hydrology, glaciology, and planetary science. Large lakes, ice sheets, magma chambers, and atmospheric water content are often measured in km³. Earth's total ocean volume—about 1.335 billion km³—illustrates the unit's utility in describing planetary-scale systems. The km³ gives scientists a manageable number when dealing with natural features too massive for cubic meters or liters to express conveniently.
Acre-Inch (ac*in)
An acre-inch equals 1/12 of an acre-foot, representing the water required to cover one acre to a depth of one inch. Irrigation planners and farmers often use acre-inches to fine-tune watering schedules for crops. Because plants require precise hydration, the acre-inch allows for granular control of irrigation needed for soil management and crop health. Agronomists also use acre-inches to convert rainfall into usable water volume estimates for agricultural regions, linking meteorology with farm management.