Convert acre-foot/year [ac*ft/y] to cubic meter/day [m^3/d] Online | Free flow Converter

t/Year [ac·ft/y]

Acre-foot per year [ac·ft/y] is a unit of volumetric flow rate commonly used in hydrology, water resource management, and irrigation planning. One acre-foot represents the volume of water required to cover one acre of land to a depth of one foot, which is approximately 1,233 cubic meters or 325,851 gallons. When expressed per year, ac·ft/y quantifies the total water volume delivered, used, or available over a 12-month period. This unit is particularly useful for managing large-scale water supplies, such as reservoirs, rivers, or agricultural irrigation systems, providing a standardized measure to estimate annual water availability and consumption. For example, an irrigation system supplying 500 ac·ft/y delivers enough water to cover 500 acres to a depth of one foot over a year. It is also used to plan municipal water supply, allocate water rights, and forecast long-term resource needs. Compared to daily or monthly flow units, acre-foot per year gives a macro-level perspective, suitable for long-term planning, resource management, and sustainability assessments. Using ac·ft/y enables engineers, hydrologists, and policymakers to monitor, manage, and optimize water resources, ensuring efficient allocation and conservation for agricultural, municipal, and industrial use.

Cubic Meter/Day [m³/d]

Cubic meter per day (m³/d) is a unit of volumetric flow rate used to measure the amount of fluid—liquid or gas—that passes through a specific area over a 24-hour period. One cubic meter represents a cube with sides of one meter, so m³/d indicates how many cubic meters of fluid flow each day. This unit is commonly used in water supply, wastewater management, and industrial processes to quantify daily fluid usage or discharge. For instance, municipal water authorities often express the daily water consumption of a city in m³/d to plan distribution, treatment, and storage. In wastewater treatment, flow rates in m³/d help design treatment plant capacity and ensure environmental compliance. Similarly, in agriculture, irrigation systems are sized based on daily water delivery requirements expressed in m³/d. Compared to m³/s, m³/d is more practical for applications where the time scale of interest is days rather than seconds, offering a clearer picture of total daily volumes. This unit allows engineers, planners, and environmental managers to monitor, manage, and optimize water and fluid resources efficiently, ensuring sustainable and reliable operations in both municipal and industrial contexts.