# Builder's Formulator

> Calculations for Builders

Canonical page: [https://chrome-stats.com/d/id306247596](https://chrome-stats.com/d/id306247596)

## Overview

- **ID:** `id306247596`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Historycentral.com
- **Category:** Business
- **Rating:** 2.00 / 5 (3 ratings)
- **Version:** 4.1
- **Last updated:** 2026-08-11
- **First published:** 2009-02-28
- **Size:** 48 MB
- **Data as of:** 2026-09-03
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/builders-formulator/id306247596)
- **Website:** [https://www.historycentral.com/Apps/Formulator/Builder.html](https://www.historycentral.com/Apps/Formulator/Builder.html)
- **Privacy policy:** [http://www.multieducator.net/privacy.html](http://www.multieducator.net/privacy.html)

## Description

Builder's Formulator is the ultimate professional reference tool for general contractors, builders, plumbers, HVAC technicians, and
  electricians. With over 2,600 formulas, 136 plumbing code charts, 27 technical drawings, and complete ADA accessibility references,
  it's the most comprehensive construction calculator available.

  CONSTRUCTION — Calculate joists, studs, headers, hardwood flooring costs, concrete and excavation volumes, bricks needed for a wall,
  roofing materials, stair dimensions, lumber requirements, and acoustic absorption. Includes material weight references for dozens of
  building materials.

  STRUCTURAL ENGINEERING — Comprehensive beam analysis for single-span and cantilevered beams with point loads, uniform loads, and
  triangular loads. Concrete design for flexure, shear, axial compression, and prestressed concrete. Masonry stress analysis, steel
  design, wood design, flat plate calculations, soil bearing capacity, and road/highway formulas.

  ELECTRICAL — Calculate kilowatts, horsepower, efficiency, power factor, watts, amps, resistance, and voltage. Includes transformer
  calculations, voltage drop analysis, motor sizing, battery calculations, AC/DC circuits, Ohm's Law, impedance, frequency conversions,
  and UPS sizing.

  PLUMBING & HVAC — Pipe sizing, flow velocity, friction loss, pressure calculations, drainage and venting, storm drainage, gas piping,
  water heater sizing and recovery, pump horsepower, septic and sewage systems, grease interceptors, thermal expansion, water supply
  sizing, medical gas piping, and swimming pool calculations. Boiler efficiency, condensation, and comprehensive water flow analysis.

  HVAC SYSTEMS — Dedicated ductwork and duct sizing, fan laws, pump laws, gas laws, hydronic formulas, psychrometrics, ventilation
  rates, heating design, refrigeration, steam systems, air change rate equations, humidity calculations, and heating/cooling load
  analysis.

  FINANCIAL — Mortgage calculations, depreciation, investment analysis, interest formulas, debt ratios, and price quotes.

  REFERENCE LIBRARY — 136 plumbing code charts and tables covering gas piping, drainage, venting, backflow prevention, medical gas,
  thermal expansion, fixture units, and more. 27 technical drawings for venting systems, chimney terminations, gas clearances, and water
   heater installations. Complete ADA accessibility reference with 52 diagrams and 17 documents covering wheelchair dimensions, grab
  bars, ramps, parking, elevators, and restroom clearances. Plus built-in reference tables for occupancy loads, brick sizes, lumber
  dimensions, wire gauge, concrete mixes, and insulation R-values.

  CONVERSIONS — Hundreds of unit conversions across pressure, volume, linear measure, area, weight, flow, power, BTU, and eight
  temperature scales including Celsius, Fahrenheit, Kelvin, and Rankine.

  FEATURES — Save and revisit calculations, mark favorites for quick access, toggle between US and metric units, export and share
  results, and view your complete calculation history. Dark mode interface designed for jobsite readability.

  Builder's Formulator — one app for every trade on the job.

## Rankings

- #731,335 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id306247596)