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ConcreteCalc Pro
Model 4225
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MSRP: $74.95
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[+] Overview

Advanced Yard, Feet-Inch-Fraction Concrete Construction-Math Calculator

The easy-to-use ConcreteCalc Pro helps reduce material waste, improve design accuracy and cut estimating time. Increase efficiency in the field or in the office with fast, accurate solutions for Square-ups, Loads, Area, Volume, Rebar, Drop, Stairs and much more.

It helps you:

  • Work in yards, feet-inch-fractions
  • Calculate area, volume and weight per volume
  • Automatic square-ups and drops
  • Rebar solutions for total linear feet and weight per size
  • Complete stair layouts; set riser height and tread width
  • Equal sided polygons
  • Circular solutions for circumference, arc, cone and column

For Concrete, Masonry and Paving Professionals

[+] Details

Dimensional Math and Conversions

  • Work in and convert between building dimensions: yards, feet-inch-fractions, and metric including square and cubic formats
  • Automatic weight per volume; select pounds, tons, kilograms or metric tons
  • D.M.S. to decimal degree conversions

Dedicated Functions

  • Length, width, height keys for fast area and volume solutions
  • Instant square-up and drop for perfect layouts
  • Complete stair calculations: risers, treads, stringers and incline angle. solve "not-to-exceed" riser height
  • Rebar: find total linear feet and calculate weight for rebar sizes; store various rebar size, on-center spacing
  • Calculate the number of truck loads based on load size
  • Bags: easily determine the number of bags of concrete for small jobs
  • Circular solutions for area, arc, circumference, column and cones
  • Block and Footing keys for material estimates
  • Polygon: calculate full angles and bi-sect angles

Added Features

  • User Preferences: set custom options; Fractions, Volumes, Stairwell Opening
  • Cost per Unit: quickly solve unit cost and total pricing
  • Backspace Key: easily correct entry errors
  • "Paperless" Tape: enables review of last 20 entries; double-check totals
  • Works as standard math calculator with %, +, -, ×, ÷, +/-, π, 1/x, x2, and √


  • Rugged Armadillo Gear case
  • Handy Pocket Reference Guides in English/Spanish
  • One 3-volt CR2016 long-life battery
  • One-Year warranty

Tech Specs

Size 5.7 x 3.0 x 0.65" (145 mm x 76 mm x 17 mm)

Weight: 4.15 oz (118 grams), includes case and Pocket Reference Guide

Power: One 3-volt CR2016 long-life battery

Display Type: LCD: 11 digits (7 normal, 4 fractions)

Display Dimensions: 0.73 x 2.56" (19 x 65 mm)

Accuracy: 12 digit internal accuracy

[+] Reviews
Overall Rating Full StarFull StarFull StarFull StarHalf Star
4.67 out of 5 
User Reviews
5 out of 5.0
User: from georgia
User Rating: ★ ★ ★ ★ ★

Super Easy To Use 5 out of 5.0
User: from Peabody Ks.
User Rating: ★ ★ ★ ★ ★
I poured some footings the other day and used my concrete calc pro. When the driver got there, he said i don't think you ordered enough mud and i was trying to figure out what i did wrong. Turns out he was wrong, when we got done, i had about a half a wheelbarrow extra. Perfect!

Great Product 5 out of 5.0
User: , Owner of Concrete Professionals, Inc. from Vermont
User Rating: ★ ★ ★ ★ ★
I could price my jobs and order concrete without it, but I WON'T. I have two of these calculators and they are very accurate and make my job easier.

Great Product 4 out of 5.0
User: from Madison, WI
User Rating: ★ ★ ★ ★
This product is good and shipping was fast. Very satisfied.

5 out of 5.0
User: , Project Manager of Linaweaver Construction, Inc. from Lansing, Kansas
User Rating: ★ ★ ★ ★ ★
I bought my first concrete calc in the early 90's. It does everything and I need quickly and accurately, who could ask for more.

Nice and easy to use. 4 out of 5.0
User: from Oradell, NJ
User Rating: ★ ★ ★ ★
Nice and easy to use.

5 out of 5.0
User: of Altaview Concrete from Sandy Utah
User Rating: ★ ★ ★ ★ ★

5 out of 5.0
User: of Jerry Bell's Concrete from Lumberton NC
User Rating: ★ ★ ★ ★ ★
All of our superintendants love using this product. Please don't even think of changing it. We also like the orange case.

4 out of 5.0
User: of Fine Line Footing Forms from Lindon Ut
User Rating: ★ ★ ★ ★

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[+] Parts & Accessories
Armadillo Gear Hard Case - Green and Black Armadillo Gear Hard Case - Green and Black

Green case with rubber base and hard plastic cover protects a calculator ensuring it is safe and secure.
Armadillo Gear Soft Tool Belt Case - Orange and Black Armadillo Gear Soft Tool Belt Case - Orange and Black

Nylon Armadillo Gear® Tool Belt Case is large enough to hold both a calculator and its protective cover.
Armadillo Gear Soft Tool Belt Case - Lime Green Armadillo Gear Soft Tool Belt Case - Lime Green

High visibility green tool belt case large enough to hold and protect a calculator and its protective cover.
CR2016 Battery CR2016 Battery

Calculator replacement battery.

[+] Support Materials

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