200 professional calculators based on UPC & IPC plumbing codes
Calculates boiler feedwater requirements and treatment needs per ASME standards.
Size booster pumps for buildings with inadequate water pressure. Calculate pump head, flow, and horsepower for multi-sto
Size horizontal branch water supply pipes serving multiple fixtures.
Calculate pressure drop in plumbing pipes using the Darcy-Weisbach equation, accurate for all flow regimes.
Calculates total developed length including horizontal runs, vertical rises, and fitting equivalents.
Calculate required booster pump parameters for domestic water systems in tall buildings.
Calculates equivalent pipe length for various fittings based on pipe diameter.
Sizes fixture branch piping based on fixture units and pipe slope per IPC Table 710.1(2).
Calculate water flow rate, velocity, or pipe size from known values for plumbing systems.
Calculate friction loss in pipes using Hazen-Williams formula. Generate friction loss tables for copper, PEX, CPVC, PVC,
Calculate gallons per minute flow rate from container fill time, pipe velocity, or pump specifications.
Calculate pressure loss in water pipes using the Hazen-Williams equation for smooth-bore pipe flow.
Calculates pressure zones and pump requirements for high-rise water supply systems.
Calculate flow rate and sizing for hose bibbs and sill cocks.
Size irrigation mainline and lateral pipes for sprinkler systems. Calculate GPM requirements, pipe sizes, and pressure l
Size water supply pipes for lavatory (sink) fixtures in residential and commercial applications.
Calculates peak instantaneous and hourly water demand using Hunter Curve method and modern updates.
Calculate friction loss and pressure drop in water supply piping using Hazen-Williams formula.
Size pressure reducing valves for domestic water systems based on flow and pressure drop.
Size water pressure reducing valves (PRV) based on inlet pressure, flow demand, and outlet pressure requirements. Includ
Size water supply pipes for shower fixtures based on number of heads and flow requirements.
Sizes steam traps based on condensate load and pressure differential.
Size thermal expansion tanks for water heaters per code requirements. Calculate expansion volume and tank capacity.
Forecasts future water demand based on growth projections and conservation factors.
Design water distribution systems. Calculate main sizing, fire flow requirements, and pressure zone analysis per AWWA st
Sizes water distribution mains for domestic and fire flow requirements using Hazen-Williams.
Sizes water meters based on flow requirements while maintaining adequate pressure and avoiding continuous high flow.
Size water meters for residential and commercial buildings. Calculate meter size based on fixture units, peak demand, an
Size building water service entrance pipe based on total fixture units and demand.
Size vertical water supply risers in multi-story buildings using fixture unit method.
Size acid waste piping systems for laboratories and industrial applications. Calculate neutralization tank sizing and di
Size area drains for paved surfaces, courtyards, and loading docks.
Estimates bathtub drainage time based on tub volume, drain size, and flow rate.
Size building drains based on fixture units and slope per UPC/IPC drainage tables.
Size building sewer from building to public sewer or septic system.
Size chemical waste drainage piping for laboratories and industrial facilities.
Size combination waste and vent systems for approved fixture arrangements.
Size condensate drain lines for HVAC equipment. Calculate drain pipe size based on cooling capacity, tonnage, and multip
Sizes condensate return lines for steam systems based on load and pressure.
Size horizontal and vertical drain pipes based on drainage fixture units per UPC and IPC codes.
Size floor drains for commercial and industrial applications. Calculate drain size based on floor area, pitch, and drain
Calculates drainage stack sizing and terminal velocity considerations for high-rise buildings.
Size horizontal branch drains serving multiple fixtures per drainage tables.
Calculate flow capacity in drainage pipes using Manning
Size floor drains and drainage systems for parking garages.
Size roof drains based on drainage area and rainfall intensity per plumbing code. Calculate drain size, leader size, and
Size roof scuppers for overflow protection on flat roofs.
Size secondary (emergency) roof drains for overflow protection.
Calculate drain pipe slope, total fall, and grade for proper drainage per plumbing code.
Size storm drains, roof drains, and leaders based on rainfall intensity and drainage area per plumbing code.
Size perimeter drains and subsurface drainage systems for foundation drainage.
Size trench drains for linear drainage applications using Manning equation.
Size vertical soil and waste stacks based on total fixture units and branch intervals.
Size vertical waste stacks for fixtures not containing human waste.
Size air admittance valves (AAV) for individual and branch venting applications.
Size circuit vents for horizontal branches serving multiple fixtures.
Size combined standpipe and sprinkler risers per NFPA 14 and NFPA 13.
Calculates vent stack sizing for high-rise plumbing systems per IPC requirements.
Size island fixture vents for sinks and fixtures not adjacent to walls.
Size stack vents (extension of soil/waste stack above highest fixture).
Size vent pipes based on DFU and developed length per UPC and IPC codes.
Size main vent stacks and stack vents based on drainage fixture units.
Size wet vents serving multiple bathroom fixtures per wet venting provisions.
Calculate hot water demand for commercial buildings based on occupancy type and fixture loads.
Calculate energy savings and payback for heat pump water heaters vs conventional electric.
Design hot water recirculation systems. Calculate heat loss, pump sizing, and pipe insulation requirements.
Size indirect boiler-fired water heaters based on recovery rate and storage capacity.
Calculate mixed water temperature and flow rates for thermostatic mixing valves.
Calculate thermal expansion and contraction of piping systems. Determine expansion loop sizes and offset requirements fo
Size electric point-of-use water heaters based on flow rate, temperature rise, and electrical requirements.
Size hot water recirculation pumps based on heat loss, pipe length, and flow requirements. Calculate GPM and head for re
Calculate peak hot water demand for residential buildings using fixture unit method.
Size solar thermal water heating systems based on daily hot water demand and solar fraction.
Size tankless water heaters for residential and commercial applications. Calculate required GPM and BTU based on fixture
Calculate hot and cold water flow rates through tempering and mixing valves.
Calculate first hour rating to properly size water heaters.
Calculate water heater recovery rate, first hour rating, and BTU requirements. Determine how fast your water heater reco
Professional water heater sizing calculator. Calculate tank gallons, BTU input, and recovery rate for residential and co
Size tank and tankless water heaters based on fixtures, occupants, and hot water demand.
Sizes cooling water piping for HVAC applications based on flow rate and velocity limits.
Size copper water supply pipes based on flow rate and velocity limits per UPC/IPC.
Size CPVC piping for hot and cold water supply systems. Calculate pipe size based on fixture units, flow rate, and press
Sizes expansion loops for piping systems based on thermal expansion and pipe properties.
Size galvanized steel water pipes accounting for reduced flow capacity due to corrosion and roughness.
Size high-density polyethylene pipes for water service and distribution systems.
Size PEX tubing for residential and commercial water supply systems. Calculate pipe size based on fixture units, flow ra
Calculates forces on pipe anchors due to thermal expansion and pressure thrust.
Determines maximum hanger spacing for copper tubing per ASME B31.9 and manufacturer specifications.
Determines maximum hanger spacing for plastic pipe (PVC, CPVC, PEX) based on temperature and size.
Determines maximum hanger spacing for steel pipe per ASME B31.1 and MSS SP-69.
Calculate heat loss from hot water pipes and determine insulation thickness requirements.
Calculate suitability scores for different pipe materials based on application requirements.
Calculates pipe offset dimensions for diagonal runs using rise and run.
Determines firestop requirements for pipe penetrations through fire-rated assemblies per IBC.
Calculate pipe support and hanger spacing requirements per UPC/IPC codes. Includes horizontal and vertical support inter
Calculate thrust block sizing for water mains and pressure piping. Size concrete thrust blocks at bends, tees, and dead
Determines acceptable flow velocity limits for various piping systems to prevent erosion and noise.
Calculates seismic bracing requirements for piping systems per IBC and ASCE 7.
Size stainless steel plumbing pipes for corrosive or high-purity water applications.
Size water supply pipes based on fixture units, flow demand, and velocity limits per plumbing code.
Calculates minimum pressure to prevent cavitation in pump suction and piping systems.
Calculates makeup water requirements for chilled water systems including expansion and losses.
Calculates glycol concentration and system volume for freeze protection in hydronic systems.
Calculates available NPSH for pump installations to prevent cavitation.
Applies pump affinity laws to predict performance changes with speed or impeller diameter changes.
Analyzes pump performance at various flow rates using pump curve coefficients.
Calculate pump head, flow rate, and horsepower requirements. Size booster pumps, sump pumps, and circulation pumps.
Size sewage ejector pumps for basement bathrooms and below-grade plumbing. Calculate GPM, head, and basin size per UPC/I
Size sump and sewage pumps based on flow rate, total head, and basin size. Calculate GPM requirements and pump horsepowe
Generates system curve data points for pump selection and system analysis.
Calculates total dynamic head (TDH) for pump sizing including static lift and friction losses.
Calculates energy savings from variable speed pump operation using affinity laws.
Size submersible and jet well pumps. Calculate total dynamic head, GPM requirements, and pump horsepower for residential
Determines required air gap dimensions for plumbing fixtures and equipment per plumbing codes.
Select and size backflow prevention assemblies based on hazard level, flow requirements, and application type per ASSE s
Select and size backflow prevention assemblies based on hazard type, flow requirements, and code compliance.
Sizes backflow prevention assemblies (RPZ, DC, PVB) based on flow rate and pressure loss.
Backflow preventer testing calculator and procedures. Calculate test results for RPZ, DC, PVB assemblies per ASSE/AWWA s
Assess cross-connection hazards and determine required backflow prevention per UPC/IPC. Calculate air gap requirements a
Sizes double check valve assemblies (DCVA) for backflow prevention.
Analyzes RPZ backflow preventer test results and determines pass/fail per ASSE 1013.
Sizes Reduced Pressure Zone assemblies with detailed pressure loss analysis.
Provides test parameters for drainage, waste, and vent systems per IPC/UPC.
Size fire department connections (FDC) for standpipe and sprinkler systems.
Calculates required fire flow for buildings per IFC and insurance requirements.
Size fire sprinkler piping for light, ordinary, and extra hazard occupancies. Calculate hydraulic requirements per NFPA
Analyzes hydrant flow test data to determine available pressure and flow at specific locations.
Calculates hydrostatic test pressure for piping systems per ASME B31 codes.
Calculates required test pressure for plumbing systems per IPC/UPC requirements.
Size standpipe risers for fire protection in buildings per NFPA 14.
Calculate detention pond volume and release rates for storm water management.
Sizes rainwater harvesting systems based on roof area, rainfall, and demand.
Calculate rainwater collection potential and storage tank sizing. Design rainwater harvesting systems for irrigation and
Size vertical rainwater leaders (downspouts) based on roof area and rainfall.
Calculate required storm water retention volume for site development.
Calculate total gas demand from multiple residential appliances.
Size natural gas and propane piping based on BTU load and pipe length per IFGC and NFPA 54. Calculate pipe diameter for
Size natural gas and propane piping per NFPA 54 and fuel gas code requirements. Calculate CFH capacity and pipe diameter
Calculate gas demand, pipe capacity, and BTU delivery for natural gas.
Size LP gas piping based on appliance demand and pipe length.
Size acid neutralization tanks for laboratory and industrial waste systems.
Calculates blowdown requirements for boilers and cooling towers to control TDS.
Size activated carbon filters for chlorine removal and taste improvement.
Calculate chlorine dosing rates for water disinfection.
Calculates chemical dosing and blowdown requirements for cooling tower water treatment.
Size dilution tanks for chemical waste dilution systems.
Sizes greywater treatment systems for non-potable reuse applications per IPC Chapter 13.
Calculate chemical dosing for pH adjustment in water treatment.
Calculates filtration and softening requirements for industrial process water.
Size RO systems based on daily production and recovery rate.
Size sediment filtration systems for residential and commercial water.
Size UV water disinfection systems based on flow rate and required dose.
Size water softeners based on hardness, household size, and flow rate. Calculate grain capacity and regeneration frequen
Interpret water test results and identify treatment needs.
Size whole-house water softener systems based on hardness and daily usage.
Sizes chemical feed pumps for water treatment applications.
Size compressed air piping systems. Calculate pipe diameter, pressure drop, and receiver tank size for industrial compre
Size compressed air piping based on flow, pressure, and allowable drop.
Size laboratory gas supply piping for specialty gases.
Size medical compressed air piping per NFPA 99.
Size medical gas piping systems for oxygen, nitrous oxide, medical air, and vacuum. NFPA 99 compliant calculations.
Size medical vacuum piping per NFPA 99 for healthcare facilities.
Size nitrogen gas supply piping for industrial and lab applications.
Size medical and industrial oxygen piping per CGA and NFPA standards.
Size vacuum piping systems for industrial, medical, and laboratory applications. Calculate pipe diameter, pump capacity,
Calculate water supply fixture units (WSFU) and drainage fixture units (DFU) for residential and commercial plumbing.
Calculates plumbing loads for healthcare facilities including special requirements per FGI Guidelines.
Calculates plumbing fixture loads and water demand for hotel facilities.
Calculates plumbing fixture requirements and loads for office buildings.
Provides rough cost estimate for plumbing systems based on fixture units and complexity.
Calculates plumbing fixture unit load and water demand for restaurant facilities per IPC/UPC.
Calculates plumbing requirements for retail facilities including public and employee restrooms.
Calculates plumbing fixture requirements for educational facilities per IPC and state codes.
Calculates total drainage fixture units (DFU) for multiple fixtures per IPC/UPC standards.
Size flush valve supply for urinal fixtures with proper flow and pressure.
Calculates the required load capacity for wall-hung water closet carriers per ASME A112.6.1M.
Size flush valve supply pipes for water closets (toilets) based on pressure and flow requirements.
Calculates annual water and sewer costs based on consumption and local utility rates.
Design graywater recycling systems. Calculate collection capacity, surge tank sizing, and irrigation distribution per UP
Calculates LEED v4/v4.1 water efficiency points based on fixture performance and reduction targets.
Calculate pool plumbing requirements including pump sizing, pipe sizing, turnover rate, and filter sizing for pools and
Calculates comprehensive water budget for buildings including indoor, outdoor, and process uses.
Estimates potential water savings from fixture retrofits and efficiency improvements.
Calculates water loss and unaccounted-for water in distribution systems per AWWA methodology.
Calculates storage and treatment requirements for water reuse systems.
Calculates per capita water consumption for various building types.
Calculate cleanout requirements and spacing for drain and sewer lines. Determine cleanout locations per UPC and IPC code
Size grease traps and interceptors for commercial kitchens per PDI-G101 and plumbing code requirements.
Size grease interceptors for commercial kitchens based on fixture flow rates, drainage fixture units, and retention time
Size interceptors for grease, sand, and oil separation based on flow and retention.
Calculate septic tank size based on bedrooms, occupancy, and daily flow. Includes drain field sizing estimates.
Calculate septic tank size based on number of bedrooms, occupants, and water usage. Includes drain field sizing estimate
Calculate trap arm length limits, trap seal requirements, and fixture trap sizing per plumbing code.
Size water hammer arrestors based on fixture units and pipe size. Calculate shock pressure and select proper ASSE 1010 a
Size water hammer arrestors based on fixture unit count, pipe size, and system pressure to prevent hydraulic shock in pl