 
For excavators, underground utility, highway & heavy contractors, plus civil engineering pros. Works in and converts to any dimensional format, including metric. Automatically calculates areas & cubic volumes. Builtin squareup, % grade and slope keys. Solve weightpervolume conversions for any material. Builtin cut/fill keys. Paperless tape allows instant review of last 20 entries.
Quickly & easily figure:
Areas & volumes
Weights
Cut/fill estimates
Shrink & swell
Percent grade
Right angle solutions and squareups
Cost & material estimations
Dimensional math & conversions
Even handles fractions1/2's, 1/4's, 1/8's, 1/16's, 1/32's, 1/64's
Includes:
User's Guide
Protective Case
LongLife Battery
1Year Warranty
What It Does
The HeavyCalc helps you:
Cut Costs & Errors
Boost Estimate Accuracy
Produce JobWinning Bids
Improve Crew Productivity
Maximize Profitability
At the estimating table, in the truck or on every crew member's tool belt, the HeavyCalc helps get every job done right the first time! Quickly master the following construction problems, in the office or out in the field:
Area & Volume Calculations
Prevent errors & save keystrokes with automatic calculation of area and volumes. Length, Width, Depth, Area & Volume keys allow for fast & accurate material estimates.
Weights
Lets you convert between weights (lbs, tons, kg) and find weights of any material (e.g., tons per cubic yard). Figure truckloads and weights and improve your bottom line.
Existing, Proposed & Cut/Fill Keys
Simplifies soilvolume cut and fill estimates.
Shrink & Swell
Solve Bank, Compacted and Loose soil volumes for any job.
Percent Grade and Slope
Instant rightangle solutions for finding diagonals, squareups, and stakingout drops, grades, ramps, drainages, trenches, and more! No more formulas or memorization of Pythagorean theorem!
Average Function
Speeds gridcell cut/fill estimates.
Dimensional Math & Conversions
Works in all dimensional formats: quickly add, subtract, multiply, divide and convert in feetinchesfractions, decimal feet, decimal inches, inches and fractions, yards, meters, millimeters, board feet, as well as square and cubic formats.
Handles all fractions1/2's, 1/4's, 1/8's, 1/16's, 1/32's, 1/64's
Work in fractions for all sorts of dimension problems. You can even set fraction denominators to display your desired accuracy (in above fraction formats).
Additional Features:
"Smart" Fraction Setting
Saves keystrokes by entering preset fraction denominators for you, from 1/2 to 1/64.
Paperless Tape
Lets you review the last 20 entries, for doublechecking answers.
Standard Calculator
Works as a regular math calculator, for your everyday math needs.
Product Specifications
Product #:
4315
Size:
5.5 x 3.0 x 0.5" (140 x 76 x 13 mm)
Product Weight (product only with battery):
3.2 oz. (91 g)
Power:
3volt lithium (CR2032) battery (included)
Bat. Life:
Approx. 800 hours usage
Auto Shutoff:
812 min.
Keypad:
42 keys; softtouch silicone rubber
User's Guide:
56 pp.; 5.0 x 2.5" (127 x 64 mm). Click here to download User's Guide in PDF format.
Warranty:
1Year Limited Warranty
Case:
Vinyl with magnetic attachment and pocket for User's Guide; black. (Leather case also available.)
Operating Temperature:
32130 deg. F (055 deg. C)
Display Type:
LCD segment; 11 digits (7 normal, 4 fractions), with annunciatorlegends
Display Dimensions:
0.86 x 2.5" (22 x 64 mm)
Accuracy:
10 digit internal accuracy

