Best Fixture Unit Calculator Apps

0+ iOS apps curated and reviewed

4.3 avg rating
16 free apps
Updated July 2026

Out of 0+ fixture unit calculator apps on iOS, 16 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Compare top Fixture Unit Calculator Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Pipe Trades Pro CalcPipe Trades Pro CalcFree4.8โ˜… (4.2K)NoYesAug 2026
2Fixture Unit Calc PlumbFixture Unit Calc Plumb$0.99โ€”YesYesJun 2026
3Concrete Calculator PlusConcrete Calculator PlusFree4.8โ˜… (21K)YesNoAug 2026
4McCalc Fusion CalculatorMcCalc Fusion CalculatorFree3.4โ˜… (18)NoNoMay 2026
5Southwireยฎ Voltage Drop CalcSouthwireยฎ Voltage Drop CalcFree4.6โ˜… (1.5K)NoNoAug 2026
6Construction CalculatorConstruction CalculatorFree4.7โ˜… (620)NoYesAug 2026
7Construction Master Pro CalcConstruction Master Pro CalcFree4.8โ˜… (39K)NoYesAug 2026
8Feet and Inches CalculatorFeet and Inches CalculatorFree4.6โ˜… (401)YesYesAug 2026

Top Picks for Fixture Unit Calculator

Pipe Trades Pro Calc#1

Pipe Trades Pro Calc by Calculated Industries

Calculator | Welding & Piping
Editor's Choice
๐Ÿ”ง Utilities
4.8๐Ÿ˜ž(4.2K ratings)
FreeIn-App Purchases
Pipe Trades Pro Calc screenshot 1
Pipe Trades Pro Calc screenshot 2
Pipe Trades Pro Calc screenshot 3
Pipe Trades Pro Calc screenshot 4
Pipe Trades Pro Calc screenshot 5
Pipe Trades Pro Calc screenshot 6

This app provides advanced calculation tools and comprehensive data for pipe trade professionals. It streamlines workflows for pipefitters, welders, and steamfitters with features for measurements, fluid dynamics, and material specifications. Designed for efficiency and accuracy, it works offline for on-site use.

What We Love

  • ๐Ÿ”ข Useful calculator tool
  • ๐Ÿง  Helpful for pipe fitters and welders
  • ๐Ÿ“ฑ Convenient to have on mobile device
  • ๐Ÿ” Accurate calculations

Room to Improve

  • ๐Ÿ’ฐ Subscription model is too expensive
  • ๐Ÿ”’ Requires internet connection to verify subscription
  • ๐Ÿ”„ Used to be a one-time purchase
Concrete Calculator Plus#3

Concrete Calculator Plus by Calc Hub, LLC

by Inch Calculator
Worth Considering
๐Ÿ”ง Utilities
4.8๐Ÿ˜Š(21K ratings)
FreeAds
Concrete Calculator Plus screenshot 1
Concrete Calculator Plus screenshot 2
Concrete Calculator Plus screenshot 3
Concrete Calculator Plus screenshot 4
Concrete Calculator Plus screenshot 5
Concrete Calculator Plus screenshot 6

This app provides 15 calculators for estimating concrete, blocks, mortar, rebar, and gravel. It supports various shapes and units, offering material cost estimations for construction projects.

What We Love

  • ๐Ÿš€ Easy to use
  • ๐Ÿš€ Accurate calculations
  • ๐Ÿš€ Convenient for on-the-go use
  • ๐Ÿš€ Helpful for various projects

Room to Improve

  • ๐Ÿ” Limited features (no cost calculation, no 50 lb bag option)
  • ๐Ÿ“ฑ Issues with display on some devices

More Fixture Unit Calculator apps to explore

4
McCalc Fusion Calculator
McCalc Fusion Calculator
McCalc Fusion Calculator
HDPE/PP Pressure Calculator
Free

This app calculates the correct fusion pressure for HDPE and Polypropylene pipe jobs. It simplifies the process by selecting your fusion machine and entering pipe details to determine the recommended theoretical gauge pressure.

Select McElroy fusion machinesChoose from nine international standardsEnter pipe size in multiple units
๐Ÿ’ผ Business
(18)
free
5
Southwireยฎ Voltage Drop Calc
Southwireยฎ Voltage Drop Calc
Southwireยฎ Voltage Drop Calc
Southwire Calculator
Free

Calculate the appropriate wire size for electrical circuits. This tool helps determine wire size based on voltage drop and current carrying capacity, ensuring compliance with NEC ampacity limits.

Determine wire size for voltage dropCalculate voltage drop for conductor runsLimit wire size by voltage drop
๐Ÿ”ง Utilities
(1.5K)
free
6
Construction Calculator
Construction Calculator
Construction Calculator
Carpentry & Stair Trigonometry
Free

This app is a powerful calculator designed for construction and woodworking professionals, as well as students. It simplifies calculations involving feet, inches, and fractions, offering conversions between various measurement units and displaying equations and results simultaneously. Advanced features are available through optional in-app purchases.

Decimal to fraction converterFraction to decimal conversionSimultaneous equation and result display
๐Ÿ”ง Utilities
(620)
free with in-app purchases
7
Construction Master Pro Calc
Construction Master Pro Calc
Construction Master Pro Calc
Feet Inch Fraction Calculator
Free

This app is a powerful construction calculator designed for professionals working with dimensions. It offers a wide range of solutions for dimensional math, right angle calculations, area and volume, and special functions, helping to improve speed and accuracy in layouts, bids, and estimates.

Dimensional math and conversionsRight angle and rafter calculationsArea and volume solutions
๐Ÿ”ง Utilities
(39K)
free with in-app purchases
8
Feet and Inches Calculator
Feet and Inches Calculator
Feet and Inches Calculator
Perfect Construction Calc!
Free

A powerful construction calculator designed for tradespeople. It offers a wide range of tools for estimating, layout, framing, and jobsite calculations, helping to save time and improve accuracy. Supports both imperial and metric units.

Construction math and estimatingLayout, framing, and jobsite calculationsImperial and metric unit conversion
๐Ÿ”ง Utilities
(401)
free with in-app purchases
9
Pipe Fitter Calculator
Pipe Fitter Calculator
Pipe Fitter Calculator
by LMF.Services
$4.99

This app provides a comprehensive suite of tools for pipe fitting calculations, including offsets, angles, and fitting data. It supports various pipe standards and measurement units, helping users determine precise cut lengths and angles for fabrication.

Multiple pipe offset calculation optionsReducing tee offset calculationsOdd angle fitting calculations
๐Ÿ“Š Productivity
(32)
free
10
HVACR Check & Charge
HVACR Check & Charge
HVACR Check & Charge
PT Charts Superheat Subcooling
Free

This app provides an instant mobile refrigerant charge calculator for HVACR applications. It supports various refrigerants and allows users to calculate the correct system charge based on superheat, subcooling, or airflow, along with environmental conditions.

Instant refrigerant charge calculatorSuperheat calculator (non-TXV)Subcooling calculator (TXV)
๐Ÿ” Reference
(17K)
free
11
Pipe Flow Wizard - Calculator
Pipe Flow Wizard - Calculator
Pipe Flow Wizard - Calculator
Flow Rate & Pressure Loss Calc
Free

Calculate fluid flow rate and pressure loss in pipes. This app helps engineers determine pipe diameter, maximum pipe length, and friction loss for both liquid and gas flows, including fittings and elevation changes. Results can be shared as Excel or PDF reports.

Flow rate calculationsPressure loss calculationsPipe diameter sizing
๐Ÿ”ง Utilities
(101)
free with in-app purchases
12
Elkhart Hard Facts Calculator
Elkhart Hard Facts Calculator
Elkhart Hard Facts Calculator
by Elkhart Brass
Free

This utility app provides essential calculators for accurate flow testing, covering various nozzle types, pump discharge pressures, and fire flow formulas. It also includes direct links to helpful instructional videos.

Smooth Bore Discharges & Flow/Pressure calculatorNozzle Reaction calculators (Smooth Bore & Fog)Pump Discharge Pressure calculators
๐Ÿ”ง Utilities
(12)
free
13
Ozinga Concrete Calculator
Ozinga Concrete Calculator
Ozinga Concrete Calculator
by Ozinga Ready Mix Concrete, Inc.
Free

Easily calculate concrete quantities for various projects like flatwork, footings, and walls. If within the service area, connect live with customer service for quotes and orders.

Calculate concrete for flatwork, footings, walls, columns, and caissonsAccurate project estimationsShare calculations with suppliers
๐Ÿ”ง Utilities
(18)
free
14
Water Demand Calculator
Water Demand Calculator
Water Demand Calculator
Calculate Peak Water Demand
Free

This tool helps engineers and plumbers accurately size water systems by calculating peak water demand. It accounts for water-efficient fixtures and appliances, allowing for custom flow rate adjustments and the addition of unlisted fixtures. Results can be saved and emailed.

Accurate system sizingAccounts for water-efficient fixturesCustomizable flow rates
๐Ÿ“š Education
(5)
free
15
P-T Calculator
P-T Calculator
P-T Calculator
by National Refrigerants, Inc.
Free

This tool simplifies HVAC/R technician tasks by calculating pressure/temperature relationships, superheat, and subcool. It automatically adjusts for altitude and offers English/Metric units. Easily access favorite refrigerants and supplementary information.

Pressure/Temperature calculationSuperheat/Subcool calculationAutomatic altitude correction
๐Ÿ” Reference
(51)
free
16
Concrete Calculator Tools
Concrete Calculator Tools
Concrete Calculator Tools
Feet Inch Concrete Calculator
Free

This app simplifies concrete volume calculations for professionals and DIYers. It offers flexible unit support and a free rectangular slab calculator, with advanced features available via subscription.

Flexible unit support (metric/imperial)Rectangular slab calculator (free)Circular slab calculator
๐Ÿ”ง Utilities
(16)
free with in-app purchases
17
BuildCalc
BuildCalc
BuildCalc
Construction Calculator
$24.99

This app enhances traditional construction calculators with advanced functions for layout, material estimation, and complex calculations. It offers interactive features, customizable material sizes, and streamlined results presentation to reduce complexity and improve accuracy for professionals.

Advanced baluster and stair layoutFence post and material estimationInteractive calculation adjustments
๐Ÿ”ง Utilities
(69)
paid
18
Block Calculator Plus
Block Calculator Plus
Block Calculator Plus
by Inch Calculator
Free

This app provides nine specialized calculators to accurately estimate masonry materials for various construction projects. It helps calculate blocks, bricks, mortar, concrete, and gravel needed for walls and other structures, supporting multiple units of measurement.

9 concrete block estimation calculatorsEstimate blocks, bricks, mortar, and fillSupports US customary and metric units
๐Ÿ”ง Utilities
(845)
ad-supported
19
Lateral Pipe Calculator
Lateral Pipe Calculator
Lateral Pipe Calculator
by LMF.Services
$4.99

This tool assists pipefitters, welders, and fabricators with complex piping calculations for fishmouth and lateral connections. It provides outputs in both imperial and metric units, as fractions or decimals, and supports various ordinate line calculations for template creation.

Imperial or Metric calculationsFractional and Decimal outputs8, 16, 32, or 64 Ordinate lines
๐Ÿ“Š Productivity
(6)
paid
20
PipeFit Pro: Pipe Calculator
PipeFit Pro: Pipe Calculator
PipeFit Pro: Pipe Calculator
Pipefitter Offset Calculator
Free
$4.99 | 100% OFF

This utility app simplifies complex pipe calculations for professionals like pipefitters and plumbers. It offers instant offset calculations, a custom fraction keypad for imperial units, and mitered bend calculations, all usable offline and with gloves.

Instant offset calculationsCustom fraction keypadMitered bend calculator
๐Ÿ”ง Utilities
(1)
free with in-app purchases

FAQ about Fixture Unit Calculator

What are the best fixture unit calculator apps for iPhone?
Pipe Trades Pro Calc tops our fixture unit calculator apps ranking as of July 2026, with a 4.8-star average from 4.2K App Store ratings, and it's free to download.
Yes โ€” 16 of the top fixture unit calculator apps we rank are free to download, including Pipe Trades Pro Calc and Concrete Calculator Plus.
Pipe Trades Pro Calc has no ads and offers in-app purchases, according to its App Store listing as of July 2026.
This app is a comprehensive tool designed for professionals in the pipe trades industry. It offers advanced calculation capabilities for measurements, fluid dynamics, and pressure analysis, along with extensive data on pipe materials and dimensions. The goal is to enhance efficiency and accuracy in daily work.
Key features include advanced measurement calculations like cut lengths and offsets, fluid dynamics analysis for flow rates and pressure loss, and access to comprehensive pipe data including diameters, wall thickness, and material properties. It also boasts an intuitive interface and offline functionality.