It helps you:

     Dedicated Functions

• 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: Circumference, Arc, Cone, Column and More!

     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.

     Specifications

• Size:5.7” x 3.0” x 0.65” (145 mm x 76 mm x 17 mm)
• Product Weight:4.15 oz. (117.7 gm)
• Includes: Case and Pocket Reference Guide
• Power:One 3-volt (CR-2016) Long-life Battery
• Display Type:LCD: 11 Digits* (7 normal, 4 Fractions) with Full Annunciators
• Display Dimensions: 00.73” x 2.56” (19 mm x 6.5 mm)
• Accuracy: 12 Digit Internal Accuracy

     Includes

• Protective 360° Hard Cover Case
• Handy Pocket Reference Guides in English/Spanish
• Long-Life Batteries
• Full One-Year Limited Warranty

• 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, (Store “Riser Height” and “Tread Width”).
• Rebar: find total Linear Feet and calculate Weight for Rebar Sizes; store various Rebar Size, On-center Spacing.
• Number of Loads: 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.
• Automatic Block and Footing keys for material estimates.
• Polygon: calculate Full angles and Bi-sect angles.

     Additional 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 %, +, -, x, ÷, +/-, Π, 1/x, x2, and √.