Convert acre-foot/year [ac*ft/y] to acre-foot/day [ac*ft/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.

Day [ac·ft/d]

Acre-foot per day [ac·ft/d] is a unit of volumetric flow rate used in hydrology, irrigation, and water resource management. One acre-foot represents the volume of water required to cover one acre of land to a depth of one foot, approximately 1,233 cubic meters or 325,851 gallons. When expressed per day, ac·ft/d measures the amount of water delivered, consumed, or flowing through a system in a single 24-hour period. This unit is particularly useful for managing large-scale water distribution systems, such as reservoirs, canals, and municipal water supply networks, allowing engineers to monitor daily water availability and usage. For example, an irrigation canal delivering 50 ac·ft/d provides enough water to cover 50 acres to a depth of one foot in a day, helping farmers plan crop irrigation schedules. It is also used in environmental monitoring, flood management, and industrial water usage planning. Compared to ac·ft/y, acre-foot per day provides short-term resolution, enabling timely operational decisions and adjustments. Using ac·ft/d allows hydrologists, engineers, and water managers to track, regulate, and optimize water flow, ensuring efficient, sustainable, and reliable use of water resources for agriculture, municipal supply, and industry.