Convert liter/day [L/d] to milliliter/hour [mL/h] Online | Free flow Converter

Day [L/d]


Liter per day (L/d) is a unit of volumetric flow rate that measures the amount of liquid passing through a system over a 24-hour period. One liter equals 1,000 cubic centimeters, so L/d quantifies how many liters of fluid flow or are consumed each day. This unit is widely used in water supply, wastewater management, agriculture, and medical applications to track daily fluid usage or delivery. For example, municipal water authorities often express household or industrial water consumption in L/d to plan supply, treatment, and storage efficiently. In agriculture, irrigation systems are designed based on the daily water requirements of crops, often calculated in liters per day. In healthcare, fluid intake or output for patients, such as intravenous fluids, is also monitored in L/d to ensure proper hydration and medical treatment. Compared to L/h, this unit provides a long-term perspective, suitable for planning and monitoring fluid systems over a full day. Using liters per day allows engineers, planners, and healthcare professionals to manage, optimize, and conserve fluid resources effectively, ensuring sustainability, efficiency, and reliability in both residential, agricultural, and industrial contexts.


Hour [mL/h]


Milliliter per hour (mL/h) is a unit of volumetric flow rate that measures the volume of a liquid passing through a system every hour. One milliliter equals one-thousandth of a liter, so mL/h quantifies small fluid volumes with higher temporal resolution, making it ideal for medical, laboratory, and industrial applications. In healthcare, mL/h is commonly used to regulate intravenous fluid administration, ensuring patients receive the correct amount of medication or nutrients per hour. In chemical and biological laboratories, precise dispensing of reagents in mL/h ensures accurate experiments and reactions. Compared to mL/d, this unit allows for more frequent monitoring and finer control, which is crucial for processes that require continuous or incremental dosing. It is also used in pharmaceutical manufacturing, microfluidics, and analytical instruments where controlled fluid flow is essential. Using milliliters per hour enables professionals to measure, manage, and optimize small-scale fluid delivery, maintaining accuracy, safety, and consistency in critical applications where even minor variations can significantly impact results and outcomes.



No conversions available for flow.

Convert liter/day [L/d] to Other Flow Units