Home Builder Pro Calcs Available at the App Store
Only $4.99 USD

With over 270 home improvement calculations and unit conversions Home Builder Pro Calcs gives you access to quickly and easily solve a variety of calculations including hours and cost estimates and take off quantities. Calculations can be saved and emailed.

Easy to use and understand inputs and results in either decimals or fractions.

Current Calculators include:

Area, Volume & Angle

  • Welcome
  • Acreage
  • Arc
  • Complex Shape - Break into Smaller
  • Complex Shape - L
  • Complex Shape - Offset Method
  • Complex Shape - Rectangle & Half Circle
  • Complex Shape - Rectangle & Triangle
  • Complex Shape - T
  • Complex Shape - U
  • Circle
  • Cone
  • Cube
  • Cylinder
  • Polygon from Apothem
  • Polygon from Radius
  • Pyramid
  • Rectangle
  • Sphere
  • Square
  • Trapezoid
  • Triangle Area
  • Triangle Angle and Diagonal
  • Triangle Rise and Diagonal
  • Triangle Rise and Run
  • Yard Area

Business

  • Cost Per Square Foot
  • Discount Price
  • Interest Only Payment
  • Lease Payments
  • Markup & Gross Profit
  • Time Estimate
  • Vehicle Loan Payments

Concrete & Paving

  • Asphalt
  • Asphalt Parking Area
  • Concrete Mix Ratio
  • Concrete Post Holes
  • Driveway Sealer
  • Paver Bricks
  • Rebar Beams
  • Slump of Concrete
  • Wire Mesh

Conversions

  • Airflow
  • Angle
  • Area
  • Air Pressure Conversion
  • Density
  • Electrical Current
  • Electrical Power
  • Electrical Voltage
  • Energy
  • Flow Rate
  • Fluid
  • Fuel Mileage
  • Length
  • Mechanical Power
  • Money
  • Speed
  • Temperature
  • Torque
  • Volume
  • Weight
  • Weight of Liquids

Electrical

  • Amps from Watts and Volts
  • Amps Required for Circuit
  • Electricity Cost
  • Volts from Amps and Watts
  • Watts from Amps and Volts

Floors, Walls & Ceilings

  • Carpet and Linoleum
  • Commerical Wall Covering
  • Drywall
  • Drywall - Advanced
  • Drywall - Basic
  • Finish Areas
  • Interior Paint
  • Tile
  • Tongue & Groove Flooring
  • Wallpaper

Foundations

  • Backfill
  • Backfill on a Slope
  • Basement Excavation & Backfill
  • Basement/Foundation Concrete
  • Benching
  • Concrete Column or Circular Slab
  • Concrete Footings
  • Concrete Rectangular Slab
  • Convert Surveyors Measurements
  • Cut or Fill Quantities
  • Drop
  • Excavation & Backfill
  • Footing Excavation & Backfill
  • Grade from Rise and Run
  • Grade from Slope Length and Rise
  • Grade of Slope
  • Pad Footing Excavation & Backfill
  • Rebar Columns
  • Rebar Continuous Footing
  • Rebar Pad Footing
  • Rebar Spread Footing
  • Rebar Wall
  • Rebar Weight
  • Sand
  • Soil Types
  • Soil Type A Excavations
  • Soil Type B Excavations
  • Sloping
  • Spoil
  • Strip Footing Excavation & Backfill
  • Squaring - 6-8-10 Method
  • Trench Excavation & Backfill

Framing

  • Balusters - Qty & Spacing
  • Board Feet and Cost
  • Floor Joist - Qty & Spacing
  • Floor/Ceiling Framing - Rule of Thumb
  • Insulation - Attic
  • Insulation R-Value
  • Ramp Length - Height & Slope
  • Ramp Length - Height & Base
  • Siding
  • Square Construction
  • Staircase
  • Stairs Best Step Height
  • Stairs Best Tread Width
  • Studs
  • Typical Wall Frame Details
  • Wall Framing - Rule of Thumb

Glossary

  • Glossary - A
  • Glossary - B
  • Glossary - C
  • Glossary - D
  • Glossary - E
  • Glossary - F
  • Glossary - G
  • Glossary - H
  • Glossary - I, J, K
  • Glossary - L
  • Glossary - M
  • Glossary - N, O
  • Glossary - P
  • Glossary - Q, R
  • Glossary - S
  • Glossary - T
  • Glossary - V, W, Y

Heating & A/C

  • Airflow
  • Attic Ventilation
  • Ceiling Fan Sizing
  • Exhaust Fan Sizing Based on Fixtures
  • Exhaust Fan Sizing Based on Room Size
  • Heating Estimator
  • Whole House Fan
  • Window Air Conditioner Size

Landscape & Yard

  • Chain Link Fence
  • Fertilizer Coverage and Cost
  • Fertilizer - Nitrogen
  • Fill & Ground Cover
  • Insecticide Coverage and Cost
  • Lawn Grass Coverage and Cost
  • Lawn Mowing
  • Mulch
  • Picket Fence
  • Plant Quantity
  • Sand Box
  • Tree Height

Linear Measurement

  • Adding Lengths
  • Subtract Lengths
  • Divide a Length
  • Divide Lengths
  • Multiply a Length
  • Multiply Lengths

Masonry

  • Block Wall - Based on Area
  • Block Wall - Based on Length and Height
  • Brick Wall
  • Concrete for Core Filling
  • Masonry Joints
  • Masonry Units & Mortar Joints
  • Stone Retaining Wall

Math & Scientific

  • Fractional from Number
  • Percentage from Fraction
  • Square Root

Miscellaneous

  • Belts and Pulleys
  • Cylindrical Tank - Horizontal Level
  • Cylindrical Tank - Vertical Level
  • Heat Index
  • Leaking Faucet Water Usage
  • Lightning Distance
  • Tank Fill Time
  • Weight of Liquids
  • Wind Chill
  • Wrench Conversion

Roof Framing

  • Common Rafters
  • Common Rafters (Expanded)
  • Hip Roof
  • Gable Ridge & Spacing
  • Gable Height
  • Gable Area
  • Hip Ridge Length
  • Rafter Types
  • Roof Pitch
  • Roof - Degrees to Pitch, Slope and Grade
  • Roof - Grade to Pitch, Degrees and Slope
  • Roof - Pitch to Degrees, Slope and Grade
  • Roof - Slope to Pitch, Degrees and Grade
  • Roofing Terms
  • Roof Trusses - Qty & Spacing
  • Simple Common Rafter - Pitch
  • Simple Common Rafter - Pitch Unknown

Roofing

  • Roofing Materials from Area
  • Roofing Materials from Pitch, Length and Width

Wood & Materials

  • Caulking Length
  • Caulking Required
  • Common Woods
  • Estimate Nail Qty
  • Lumber Abbreviations
  • Lumber Dimensions
  • Lumber Grades
  • Nails
  • Plywood Veneer Grades
  • Wood Defects & Blemishes

Hours Estimates

  • Effort Factor

Hours - Carpentry

  • Finish Carpentry
  • Portland Cement, Stucco & Plaster
  • Siding
  • Stairs
  • Wall Sheathing - Boards
  • Wall Sheathing - Plywood

Hours - Concrete

  • Block & Brick
  • Concrete Cutting
  • Finishing & Curing Concrete
  • Form Work
  • Placing Concrete - Beams & Girders
  • Placing Concrete - Columns
  • Placing Concrete - Grade Beams
  • Placing Concrete - Slabs on Grade
  • Placing Concrete - Stairs
  • Placing Concrete - Suspended Slabs
  • Placing Concrete - Walls to 10' High
  • Reinforcing Steel Fabrication - Hand
  • Reinforcing Steel Fabrication - Machine
  • Tile Masonry

Hours - Doors & Windows

  • Garage Door
  • Glass & Glazing
  • Metal Door
  • Window Installation
  • Wood Door Installation - Fit, Hang & Lock
  • Wood Door Installation - Frame & Trim

Hours - Finishes

  • Acoustical Treatment
  • Carpet
  • Exterior Painting - Brush
  • Exterior Painting - Roller
  • Exterior Painting - Spray
  • Finish Wood Floors
  • Interior Painting - Brush
  • Interior Painting - Roller
  • Interior Painting - Spray
  • Portland Cement, Stucco & Plaster
  • Subflooring
  • Tiling - Soft
  • Wall Covering
  • Wood Flooring

Hours - Roofing

  • Roofing
  • Roof Sheathing - Boards
  • Roof Sheathing - Plywood
  • Sheet Metal Work

Hours - Site Work

  • Concrete Demolition & Removal
  • Hand Excavation - Earthwork
  • Hand Excavation - Trim & Finish
  • Stripping Top Soil
  • Trees - Fell & Cut
  • Trees - Stump Removal
  • Form Work
  • Galvanized Culvert Installation
  • Landscape - Spread Topsoil w/ Machine
  • Landscape - Top Dress, Seed, Fertilize, Mulch
  • Landscape - Plant Shrubs, 1 Gallon Size
  • Ceilings, Floors, Walls & Roofing - Demolition & Removal

More calculators coming soon in free updates!

If there's a calculator you'd like to see added, send us an email.

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