Plumbing Calculators
Plumbing calculators for pipe sizing, water pressure, flow rate, drain slope, and fixture unit calculations. Based on IPC 2021.
Pipe Size Calculator
Calculate the required pipe diameter based on flow rate and maximum velocity per plumbing codes.
Open calculatorWater Pressure Calculator
Calculate water pressure based on elevation head, supply pressure, and friction losses.
Open calculatorFlow Rate Calculator
Calculate water flow rate based on pipe size, velocity, and pressure differential.
Open calculatorDrain Pipe Slope Calculator
Calculate the required slope for drain pipes based on pipe diameter per IPC requirements.
Open calculatorWater Heater Size Calculator
Determine the correct water heater tank size based on household size and peak demand.
Open calculatorPipe Friction Loss Calculator
Calculate friction loss in pipes using the Hazen-Williams formula based on pipe material, size, and flow rate.
Open calculatorWater Supply Fixture Unit Calculator
Calculate total water supply fixture units (WSFU) for pipe sizing per IPC Table E103.3(2).
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