Built for professional plumbers, contractors, and apprentices, Plumbing Formulator delivers powerful calculations and comprehensive reference materials in one intuitive app. Whether you are sizing pipes, calculating water supply demands, or referencing code requirements, this app has you covered.
50+ Professional Calculators across 10 Categories:
• Pipes: Calculate pipe area, volume, capacity in gallons, and flow velocity
• Water Supply: Fixture unit calculations, pipe sizing, and demand estimation
• Drainage: DFU calculations, drain slope, and vent sizing
• Pressure: Head pressure, pressure drop, and system calculations
• Flow: GPM calculations, cross-connections, and flow rates
• Water Heaters: Recovery rates, BTU requirements, and sizing
• Storm Drainage: Roof drain sizing and rainfall calculations
• Pumps: Pump head, horsepower, and efficiency calculations
• Gas: Gas pipe sizing and BTU demand calculations
• Septic and Sewage: Tank sizing and system calculations
Comprehensive Reference Library:
• Massachusetts 248 CMR 10.00 Plumbing Code - Complete searchable code reference
• Army Plumbing Guide - 24 chapters of professional plumbing guidance
• Charts and Tables - Pipe dimensions, fitting equivalents, fixture units, and more
• Plumbing Drawings - Visual reference diagrams for installations
Professional Features:
• Save and compare calculation results
• Share calculations with colleagues and clients
• Favorite frequently used calculators
• US and Metric unit support
• Dark mode interface
• Works offline - no internet required
Plumbing Formulator is FREE to download with access to calculators and reference materials. Upgrade to Pro to unlock saved calculations, additional content, and premium features.
Every calculator provides detailed breakdowns showing you exactly how results are calculated. Input your values, get instant results, and understand the math behind every calculation.
Popular Calculators Include:
Access essential plumbing references right from your phone. No more carrying heavy code books or searching through stacks of paperwork.
Massachusetts Plumbing Code (248 CMR 10.00):
Reference Charts and Tables:
Army Plumbing Guide:
