Best Rebar Calculator Apps

208+ iOS apps curated and reviewed

4.6 avg rating
17 free apps
Updated June 2026

Looking for free rebar calculator apps? 17 of our 208+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Compare top Rebar Calculator Apps (June 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Rebar CalcRebar CalcFree4.9★ (579)YesNoJul 2026
2Rebar Calculator ProRebar Calculator ProFreeNoYesJul 2026
3Concrete Calculator PlusConcrete Calculator PlusFree4.8★ (21K)YesNoAug 2026
4CSiRebarCSiRebarFree5.0★ (1)NoNoMay 2026
5Concrete Calc Pro CalculatorConcrete Calc Pro CalculatorFree was $39.994.9★ (526)NoYesJul 2026
6Gravel Calculator PlusGravel Calculator PlusFree4.8★ (1.7K)YesNoJul 2026
7Material Estimator CalculatorMaterial Estimator CalculatorFree4.8★ (2.9K)NoYesAug 2026
8Block Calculator PlusBlock Calculator PlusFree4.9★ (845)YesNoJul 2026

Top Picks for Rebar Calculator

Rebar Calc#1

Rebar Calc by Appco LLC (USA)

concrete calcs made easy
Editor's Choice
🔧 Utilities
4.9(579 ratings)
FreeAds
Rebar Calc screenshot 1
Rebar Calc screenshot 2
Rebar Calc screenshot 3
Rebar Calc screenshot 4
Rebar Calc screenshot 5
Rebar Calc screenshot 6

This app simplifies concrete and rebar calculations for construction projects. It helps estimate rebar tonnage, mesh quantities, and concrete volume, and can even provide quotes for materials.

Concrete Calculator Plus#3

Concrete Calculator Plus by Calc Hub, LLC

by Inch Calculator
Worth Considering
🔧 Utilities
4.8😊(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

  • 🚀 Easy to use
  • 🚀 Accurate calculations
  • 🚀 Convenient for on-the-go use
  • 🚀 Helpful for various projects

Room to Improve

  • 🔍 Limited features (no cost calculation, no 50 lb bag option)
  • 📱 Issues with display on some devices

More Rebar Calculator apps to explore

4
CSiRebar
CSiRebar
CSiRebar
by Computers and Structures, Inc.
Free

This app helps structural and civil engineers quickly convert between bar sizes, steel area, and spacing requirements. It supports ASTM, Metric, and Imperial standards, offering various reinforcement layout options for design and analysis.

Converts bar sizes, steel area, and spacingSupports ASTM, Metric, and Imperial standardsGenerates multiple reinforcement layouts
🔧 Utilities
(1)
free
5
Concrete Calc Pro Calculator
Concrete Calc Pro Calculator
Concrete Calc Pro Calculator
Calculate Concrete & Rebar
Free
$39.99 | 100% OFF

Instantly calculate concrete volumes for various construction elements like slabs, footings, and walls. This app also estimates rebar, formwork, and batch requirements, supporting multiple measurement units and conversions for efficient project planning.

Concrete volume calculation (yards, feet, meters)Rebar spacing, sizing, and quantity estimationStair and foundation design tools
🔧 Utilities
(526)
free with in-app purchases
6
Gravel Calculator Plus
Gravel Calculator Plus
Gravel Calculator Plus
by Inch Calculator
Free

Easily estimate the quantity of various landscaping and hardscaping materials like gravel, stone, and sand. Get precise measurements in tons, cubic yards, or cubic meters for your projects.

Estimate gravel, stone, rock, sand, and topsoilCalculate material needed for landscapingCalculate material needed for hardscape projects
🔧 Utilities
(1.7K)
ad-supported
7
Material Estimator Calculator
Material Estimator Calculator
Material Estimator Calculator
Estimate Construction Projects
Free

This app helps contractors and DIYers accurately estimate material costs and quantities for construction projects. It features dimensional measurement tools, unit conversions, and a material database to optimize budgeting and ordering.

Precise cost and percentage calculationsIntegrated material size databaseAdvanced dimensional measurement tools
🔧 Utilities
(2.9K)
free with in-app purchases
8
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
🔧 Utilities
(845)
ad-supported
9
Construction Calculator A1
Construction Calculator A1
Construction Calculator A1
Construction calculator app
Free

This app provides specialized calculators for construction professionals, including concrete, rebar, and area/volume calculations. It offers material quantity estimation, unit conversion, and professional features like BOQ export and project organization. Designed for contractors, builders, and engineers on job sites worldwide.

Concrete material quantity calculationRebar bending schedule and weight calculationFeet-inch arithmetic without decimal conversion
📊 Productivity
(11)
ad-supported
10
Construction Calculator SS
Construction Calculator SS
Construction Calculator SS
Design & Building Math Calc
Free

This app provides construction professionals and DIYers with precise calculations for area, volume, and measurements. It includes material estimation for concrete, tiles, and paint, along with multi-language support and an intuitive interface.

Area and volume calculationsFeet-inch calculationsUnit conversions
🔧 Utilities
(8)
ad-supported
11
Rebar Grid Calculator
Rebar Grid Calculator
Rebar Grid Calculator
Number and Spacing of Rebar
$1.99

Quickly calculate the number of rebars needed for concrete slab reinforcement. Input slab dimensions and rebar spacing for accurate grid layout. Supports both imperial and metric units, with results easily shareable via text or email.

Calculate rebar quantityDetermine rebar spacingImperial and metric support
💼 Business
(13)
paid
12
OneCalc: All-in-one Calculator
OneCalc: All-in-one Calculator
OneCalc: All-in-one Calculator
Calculates everything. Try it.
Free

This app offers a comprehensive suite of over 40 calculators and unit converters for various needs, including finance, health, construction, and everyday math. It features standard, scientific, and specialized calculators for tasks like loan amortization, currency conversion, and material estimation.

Over 40 calculators and unit convertersStandard and scientific calculator functionsFinancial calculators (interest, loan, currency)
📊 Productivity
(4.8K)
free with in-app purchases
13
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
🔧 Utilities
(39K)
free with in-app purchases
14
Concrete and Agg Calculator
Concrete and Agg Calculator
Concrete and Agg Calculator
by Chaney Enterprises
Free

Calculate precise amounts of concrete, aggregate, and masonry materials needed for various construction projects. Accounts for potential waste and overages to ensure you order the right quantity.

Concrete slab calculationConcrete footing calculationConcrete wall calculation
💼 Business
(37)
ad-supported
15
Constropedia Steel BBS Calc
Constropedia Steel BBS Calc
Constropedia Steel BBS Calc
Steel bar, beam, column & slab
Free

This app provides fast and accurate steel reinforcement calculations for construction professionals. It simplifies planning and execution by generating detailed bar bending schedules, estimating steel weights, and performing comprehensive quantity calculations for various structural elements. The user-friendly interface ensures accessibility for all users.

Bar bending schedules for slabs, columns, footings, beamsSteel weight estimationQuantity calculations for structural elements
📊 Productivity
(4)
free
16
CRSI Rebar Reference
CRSI Rebar Reference
CRSI Rebar Reference
Ready reference data for rebar
Free

Access essential data for reinforcing bars (rebar) including specifications, hook details, and marking requirements. This app serves as a quick reference for industry standards and links to online resources.

ASTM standard reinforcing bar specificationsStandard hook details (90, 135, 180 degrees)Stirrup/tie hook details
📊 Productivity
(16)
free
17
Calculator‰
Calculator‰
Calculator‰
Default Calculator
Free

This utility app offers a clean and intuitive interface for performing calculations. It prioritizes a user-friendly design with large buttons and a clear display for quick and efficient use.

Large buttonsClear displayFast calculations
🔧 Utilities
(404K)
ad-supported
18
TMT Rebar Steel calculator
TMT Rebar Steel calculator
TMT Rebar Steel calculator
TMT bar Steel Calculator
$1.99

Calculate the estimated weight and price of TMT rebar steel for construction projects. Input the number of steel rods needed and the price per kilogram for accurate costings.

Estimate TMT rebar weightCalculate TMT rebar priceInvoice generation
🔧 Utilities
(0)
paid
19
Panecal Scientific Calculator
Panecal Scientific Calculator
Panecal Scientific Calculator
For engineers and students
Free

This app functions as a scientific calculator, enabling users to input and edit complex formulas with ease. It supports formula history, variable memory, and various number system conversions for accurate calculations.

Formula editing with cursor and swipeReuse past formulasVariable memory for calculations
🔧 Utilities
(1.9K)
ad-supported
20
Baluster Calculator Elite
Baluster Calculator Elite
Baluster Calculator Elite
Spindle and Railing Calculator
$8.99

This app calculates precise baluster spacing for handrails, accommodating both flat and sloped surfaces. It provides detailed measurements for installation, including the number of balusters, spacing between them, and marking points. Users can also switch between metric and imperial units for convenience.

Flat railing calculationsStair railing calculationsMax baluster spacing input
🔧 Utilities
(307)
paid

FAQ about Rebar Calculator

What are the best rebar calculator apps for iPhone?
Rebar Calc tops our rebar calculator apps ranking as of June 2026, with a 4.9-star average from 579 App Store ratings, and it's free to download.
Yes — 17 of the top rebar calculator apps we rank are free to download, including Rebar Calc and Rebar Calculator Pro.
Rebar Calc shows ads and has no in-app purchases, according to its App Store listing as of June 2026.
We track 208+ rebar calculator apps on the iOS App Store as of June 2026, ranked by rating, recency, and analysis of real user reviews.
Rebar Calc is a tool designed to simplify calculations for concrete and rebar projects. It helps users determine the required amounts of rebar, sheet mesh, and roll mesh, as well as estimate concrete volume in cubic yards. The app can also assist in getting quotes for concrete supplies.
Key features include calculating rebar tonnage and linear feet, estimating sheets of sheet mesh and rolls of roll mesh, and a concrete volume estimator for slabs and cores. Users can also configure lap amounts and select rebar/mesh sizes, and request material quotes.

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