Plumbing Formulator

PLUMBING FORMULATOR is the ultimate professional calculator for plumbers, HVAC technicians, and mechanical contractors. With over 200 formulas and calculators, reference charts, code books, and professional tools, this app puts essential plumbing calculations right in your pocket.

CALCULATORS AND FORMULAS

Water Flow and Supply Calculate pipe velocity, volume flow rate, gallons per minute, fixture unit demand, and water supply sizing. Determine optimum flow rates and total pipe dimensions for any project.

Pipes and Piping Calculate pipe area, volume, weight of various pipe materials including copper, steel, cast iron, and plastic. Determine friction loss using Hazen-Williams formula, pressure ratings, expansion due to temperature changes, and offset calculations for 45 degree bends.

Drainage and Venting Size drain pipes, calculate slope and fall, determine vent pipe sizing, and figure drainage fixture units. Includes horizontal and vertical wet vent calculations.

Water Heaters Calculate BTU requirements, recovery rates, storage tank sizing, first hour ratings, and domestic hot water demand. Determine energy costs and efficiency ratings.

Pumps and Pressure Calculate water horsepower, brake horsepower, pump efficiency, head pressure, velocity head, and system curves. Convert between PSI and feet of head.

Storm Drainage Size roof drains, calculate rainfall intensity, determine gutter and leader sizing, and figure retention requirements.

Gas Piping Size natural gas and propane lines, calculate BTU loads, determine pressure drop, and figure appliance demand.

Medical Gas Systems Size oxygen, nitrogen, nitrous oxide, and medical air piping. Calculate vacuum system demand, pressure drop, cylinder manifold requirements, and system flow rates per NFPA 99 standards.

Swimming Pools Calculate pool volume for rectangular and circular pools, determine fill time, pump sizing, turnover rates, evaporation loss, and main drain requirements.

Septic and Sewage Size septic tanks, calculate leach field requirements, and determine sewage pump capacity.

Thermal Expansion Calculate expansion tank sizing, system pressure, and pipe length changes due to temperature.

REFERENCE MATERIALS

Charts and Tables Access dozens of professional plumbing reference charts including pipe sizing tables, fixture unit charts, and material specifications in PDF format.

Massachusetts Plumbing Code Complete 248 CMR plumbing code reference with all chapters available for quick lookup.

Plumbing Design Guide Comprehensive 24 chapter plumbing design and installation guide covering residential, commercial, and specialized systems.

Technical Drawings Professional plumbing diagrams and installation details.

TOOLS AND FEATURES

Pipe Cut List Optimizer Enter your required pipe lengths and stock sizes to get an optimized cutting plan that minimizes waste.

Unit Conversions Convert between US and metric units for length, area, volume, flow rate, pressure, temperature, weight, and power.

Geometry Calculators Calculate area and volume for circles, rectangles, triangles, cylinders, spheres, cones, and other shapes.

PLUMBING PRO FEATURES

Upgrade to Plumbing Pro for additional capabilities including saving calculations with full input and output details, exporting results, unlimited calculation history, and an ad-free experience. One time purchase with lifetime access.

The app features a modern dark interface designed for easy use on the job site. All calculators include detailed breakdowns showing the calculation steps and formulas used.

Perfect for licensed plumbers, apprentices, HVAC technicians, mechanical engineers, building inspectors, and anyone working in the plumbing and mechanical trades.

Download Plumbing Formulator today and have professional plumbing calculations at your fingertips.