The ConcreteCalc Pro concrete calculator for your Android Smartphone is built with the same features and functions, and the same core engine that powers the industry-standard advanced construction-math and concrete calculators from Calculated Industries. And while perhaps obvious, if you change from an Android device to an iPhone or iPad, you WILL need to buy a new license as they are incompatible. No learning curve on this calc -- just one powerful, easy-to-use concrete calculator app, giving you the power to calculate square-ups, loads, area, volume, rebar, drops and stairs. This concrete calculator even finds the number of bags of concrete / cement required for small jobs. An ideal calculator for Concrete & Cement, Masonry, Estimating and Paving Professionals: - Work directly in and convert between all building dimensional formats: yards, feet-inch-fractions, inch fraction, decimal feet (10ths, 100ths), decimal inches and metric (m, cm, mm) - Easily calculate areas, volumes and weight per volume, truck loads of concrete - Rebar quantity solutions - Calculator finds instant square-up and drop for perfect layout - Reduce material waste and cut estimate time Dimensional Math and Conversions Built into this Concrete Calculator - Yards - Feet-Inch-Fractions - Metric (m, cm, mm) - Decimal Feet (10ths, 100ths), Decimal Inches - D.M.S. to Decimal Degree Conversions. Concrete Calculator Contains Built-in Area and Volume Solutions - Length, Width, Height (Depth) keys - Square and Cubic formats - Column/Cone Area and Volume - Instant Weight per Volume; Pounds, Tons, Kilograms or Metric Tons. - Blocks - Footings Dedicated Functions and Keys Help You Solve - Instant Square-up and Drop - Complete Stair calculations: - Risers - Treads - Stringers - Incline Angle - Rebar: - Total Linear Feet - Calculate Weight for Rebar Sizes - Store Rebar Sizes - Inset - On-center Spacing - Number of Loads: calculate the number of truck Loads based on Load size. - Calculate number of bags for small jobs. - Equal Sided Polygons - Board Feet of lumber for forms Special Functions - Haptic Feedback (optional) - Entry Editing Backspace Key – with a swipe of a finger - Cost per Unit: Solve unit cost and pricing - Paperless Tape - 4 Memories - User-Definable Preferences Makes estimating easier for Contractors, Estimators, Concrete Pros & More.