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Full Product Description

Calculated Industries 4325 Heavy Calc Pro Calculator

Save time, eliminate costly errors, reduce material and labor expenses on all construction jobs.

Built-in functions quickly find solutions for Area, Volume, Weight, Slopes, Swell, and Shrink, Cut/Fill and More!

Learn more about this product here: HeavyCalc Pro Intro and How To Use

Main Features:

  • Work in and convert between all building dimensional formats, including Metric.
  • The most effective equipment, manpower planning and estimating tool you can own!
  • 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.

Dimensional Math and Conversions:

  • Work in and Convert Between Any Construction-Math Formats!
  • Calculate and convert in Feet-Inch-Fractions, Decimal Yards, Feet (i.e. 10ths), Inches and Fractions, Meters and Millimeters – including Square and Cubic formats.
  • Automatically Calculate Areas and Volumes!
  • Easily find Areas and Volumes using dedicated Length, Width and Depth keys.
  • Dedicated Functions- Square-ups and Right Angles!
  • Percent Grade and Slope keys give you instant Right Angle solutions for Diagonals; easily stakeout Drops, Ramps, Trenches and More!
  • Weight per Volume (Lbs, Tons, Kg)!
  • Convert between weights and find the weight of material (i.e., Tons per Cubic Yard, etc.).
  • Find Percent (%) Swell and Shrink!
  • Quickly determine Bank, Compacted and Loose Soil Volumes for any job.
  • Simplify Cut/Fill Estimates!
  • Built-in Cut/Fill, Existing and Proposed functions make soil-volume estimates easy.
  • “Average” Function! Speeds Grid-Cell - Cut/Fill estimates.

Timesaving “Utility” Functions:

  • “Paperless” Tape! Allows you to review the last 20 entries – great for plan checks and confirming strings of dimensions.
  • Preference Setting for Fractions speed entries, Repeat operator (+, -, ÷, x) and Constant functions reduce keystrokes.
  • Per Unit key for material costing estimates.
  • Battery-Saving Auto Shut-Off.

Tech Specs:

  • Size: 5.7” x 3.0” x 0.65” (145mm x 76mm x 17mm)
  • Weight: 3.2 oz. (90.7 gm) – does not include Vinyl Case or User’s Guide
  • Power: Single 3-volt (CR-2032) Long Life Battery
  • Display Type: LCD, 11 Digits (7 Normal, 4 Fractions) with full Annunciators
  • LCD Display Dimensions: 0.73” x 2.56” (19 mm x 65 mm)
  • Accuracy: 12 Digit Internal Accuracy

Includes

  • Easy-to-follow User’s Guide
  • Protective Hard Case
  • Full One Year Limited Warranty

Words from our fantastic customers.

Still not convinced? Check out our reviews!

Amy S.

High School Math Teacher

I have ordered calculators from Underwood Distributing for so many years that I have last track of the time. They are always quick to answer my emails and they get the product I need shipped out asap! 10/10

Mandee P.

Middle School Math Teacher

I teach middle school and wanted reliable calculators, at a good priced, and in a distinct color so everyone knows who they belong to. They were well-packed and arrived quickly! I am so pleased with my purchase and will keep this company in mind for future needs.

Math Teacher

Fort Zumwalt School District

My current order of graphing calculators was placed and ordered so quickly. Underwood Distributing Company made this process easy and I appreciate the timeliness along with the great price.

Underwood Distributing Co.

Discover more in our FAQs

How do I cancel or edit an order?

Because orders are processed and shipped within 0–2 business days, it's important to reach out to us as quickly as possible if you need to cancel or make a change. The best way to do this is to contact us directly:

Please include your order number and the change or cancellation you need. We're a small, flexible business and will do everything we can to accommodate your request before your order ships. Once an order has shipped, it cannot be cancelled, and you would need to follow our standard return process instead.