Home Support My Cart
HeavyCalc Pro
Model 4325
<     1 of 3     >
Price: $74.95 Add to Cart
48 cont. states only

[+] Overview

Yard, Feet-Inch-Fraction, Metric
Heavy Construction-Math Calculator

This is the only construction-math calculator specifically designed for excavators and heavy construction professionals. Built-in functions help you quickly find solutions for area, volume, weight, slopes, swell and shrink, cut/fill and more. With the HeavyCalc Pro you'll save time, eliminate costly errors and reduce material and labor expenses.

  • Work in and convert between Yard, Feet-Inch-Fraction and Metric formats
  • Automatically calculate Areas and Volumes
  • Square-ups and Right Angles; Percent Grade and Slope; stakeout Drops, Ramps, Trenches, much more
  • Weight per Volume (Lbs, Tons, Kg)
  • Find percent (%) Swell and Shrink
  • Simplify Cut/Fill Estimates

For: Engineers, Designers, Excavators, Highway and Heavy Construction Professionals

[+] Details

Dimensional Math and Conversions

  • Calculate and convert in feet-inch-fractions, decimal yards, decimal finches and fractions, meters and millimeters - including square and cubic formats
  • Easily find areas and volumes using dedicated length, width and depth keys

Dedicated Functions

  • Percent grade and slope keys give you instant right angle solutions for diagonals and square-ups
  • Easily stakeout drops, ramps, trenches and more
  • Weight per volume function helps you find the weight of material and convert between tons, pounds, kilograms and metric tons
  • Easily find trucked (loose fill) volume, then use swell and shrink factors to determine total weight
  • Built-in cut/fill, existing and proposed functions make soil-volume estimates easy


  • Easy-to-follow User's Guides in English and Spanish
  • Rugged Armadillo Gear protective case
  • One-Year Warranty

Tech Specs

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

3.2 oz. (90.7 gm) - does not include Armadillo Gear Case or User's Guide

One 3-volt CR2016 long life battery

Display Type:
LCD, 11 Digits (7 Normal, 4 Fractions)

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

12 digit internal accuracy

[+] Reviews
Overall Rating Full StarFull StarFull StarFull StarFull Star
5 out of 5 
User Reviews
Tried and true 5 out of 5.0
User: , Superintendent of Advanced Environmental Solutions Inc. from United States
User Rating: ★ ★ ★ ★ ★
Been using for a number of years very good. Once you master the layout you will wonder why you waited so long to get one.

5 out of 5.0
User: , Const. Inspector. Highways of Conspecs Consultants Inc. from New Jersey
User Rating: ★ ★ ★ ★ ★
Its making my job alot easier.

5 out of 5.0
User: from MAFB
User Rating: ★ ★ ★ ★ ★

Enjoy using ElectriCalc 5 out of 5.0
User: from Guyana, South Americ
User Rating: ★ ★ ★ ★ ★
Save time and Money, get the job done.

Passed my test 5 out of 5.0
User: from Durango, Co.
User Rating: ★ ★ ★ ★ ★
I bought this calculator to take to my AWS Certified Welding Inspector exams. I did not miss any math or conversion questions and am now a CWI.

[+] Download the App

[+] Parts & Accessories
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
Armadillo Gear Soft Tool Belt Case - Orange and Black | Add to Cart
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
Armadillo Gear Soft Tool Belt Case - Lime Green | Add to Cart
CR2016 Battery CR2016 Battery

Calculator replacement battery.
CR2016 Battery | Add to Cart

[+] Support Materials

Pocket Reference Guide
Spec Sheet

[+] Find a Dealer