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GPD = GPM × 1440
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GPM (gallons per minute) to GPD (gallons per day) conversion is a calculation used to convert flow rates from a per-minute basis to a per-day basis. This is particularly useful in water management, irrigation systems, and industrial processes where daily water usage needs to be estimated.
The calculator uses the simple conversion formula:
Where:
Explanation: Since there are 1440 minutes in a day (24 hours × 60 minutes), multiplying GPM by 1440 gives the total gallons that would flow in a full day at that rate.
Details: Converting GPM to GPD is essential for water resource planning, system design, cost calculations, and regulatory compliance. It helps in estimating daily water consumption, sizing storage tanks, and calculating treatment requirements.
Tips: Enter the flow rate in gallons per minute (GPM). The value must be greater than 0. The calculator will automatically compute the equivalent gallons per day (GPD).
Q1: Why multiply by 1440 specifically?
A: There are 1440 minutes in a day (24 hours × 60 minutes), so this multiplier converts per-minute flow to per-day flow.
Q2: Can this conversion be used for other time periods?
A: Yes, similar conversions can be made for other time periods (e.g., GPH = GPM × 60 for gallons per hour).
Q3: Is this conversion accurate for variable flow rates?
A: This calculation assumes a constant flow rate. For variable flows, you would need to calculate based on the average flow rate over time.
Q4: What are common applications of GPM to GPD conversion?
A: Common applications include water system design, irrigation planning, industrial process calculations, and environmental monitoring.
Q5: Does this conversion work for other units besides gallons?
A: Yes, the same conversion factor (1440) applies regardless of the volume unit, as long as both input and output use the same unit (e.g., liters per minute to liters per day).