• Handy Construction Calculator 1
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Handy Construction Calculator

Accurate and Easy to Use Construction Calculator70+ Professional Grade, Premium ToolsUsed by Pros around the WorldFull US or METRIC modes
- Inputs and Outputs
Featured by Google Play, AT&T, Vodafone20,000+ customers, Top 100 Productivity App

Precision Inputs and Outputs-US (Feet Inches Fraction)-METRIC (Meter Millimeter)

What makes us better?*US or METRIC
- One simple setting that lets you switch between modes with localized materials, size choices, inputs, outputs and rounding*Configurable US inch fraction output precision (1/32, 1/16, 1/8, 1/4)*Easy to use
- the one construction calculator you need to save time and make more money*Flexible inputs/outputs
- simple inputs, advanced options, all the outputs you need. No morer mental math!*Experience
- Since 2009 the only construction calculator built with the input of thousands of professionals*Professional grade construction calculator
- for the Pro, Contractor, Builder, Estimator, Handyman, DIY, Maintenance, or Carpenter*Diagrams help master the inputs and outputs
- no guesswork*Built-in results sharing
- text, email, copy/paste and more*Clean and easy to use
- never any ads, crazy designs or other annoyances*Consistently updated and supported*We appreciate our customers. Have an idea or special need? Send us a note anytime!

Satisfaction Guaranteed! There's a reason we have so many consistent 5 star ratings and great reviews over the years.

Below is a list of our 70+ construction calculators along with a few highlights to show the advanced features, inputs and outputs that we think make us the best for your construction projects.

= ROOFING
* Attic Ventilation
- Ventilation, Intake & Exhaust
* Advanced Rafters
- Overhang, Ridge, Bird's Mouth, Common
* Simple Rafters
* Roofing
- Gables, Drip Edge, Ridge Caps, Bundles, Underlayment
* Sheeting

= FRAMING
* Balusters
- Rake Angle, Centers, Spacing, Running Measurements
* Board Feet
* Floor Joists
- OC Spacing, Running Measurements
* Wall Framing
- Stud spacing, Studs & Plates, Advanced Algorithm
* Insulation
- Batts & Blown
* Siding
- Gables
* Squaring
* Stair Calculator
- Constrain Run, Adjust Riser Results Real-time, Running Stringer Points

= WALL, FLOOR & CEILING
* Carpet & Vinyl Flooring
* Tongue & Groove Flooring
* Crown Molding
* Deck Boards
- Diagonal & 90 Degree Layouts
* Demolition Waste
- Building Construction Type
* Drop Ceiling
- Even Border, All Materials
* Drywall
- Room Dimension or Area, Ceiling, All Materials
* Finish Areas
- Walls, Floor, Ceiling
* Paint
- # Coats, Wall Type
* Tile
- Field and Border, Diagonal or 90 Degree Layouts

= ELECTRICAL
* Amps/Watts/Volts Solver
* Amps Required for Circuit

= FOUNDATION
* Backfill
- Volume & Weight and Slope
* Excavation and Backfill
- Specific excavated (with swell) and backfill (with compaction) material selection. Includes calculators specific to Basements, Footings and Trenches.
* Grade
- Run/Drop or Slope
* Rebar
- Beams & Columns with variable sizing and ties, Continuous footings, Weight.

= PAVING & CONCRETE
* Round/Rectangle Concrete
- Total Volume, Premix and Portland Options, Rebar
* Post Holes
- Per Column & Total Calculations
* Asphalt
- Variable Base Weight
* Paving
- Variable Base, Subbase, Compaction
* Wire Mesh

= MASONRY
* Brick & Block Wall
- Bricks, Courses, w/wo Mortar

= AREA, VOLUME & ANGLE
* Acreage
* Arc
* Arc Radius
* Cone
* Circle
* Cube
* Cylinder
* Pyramid
* Rectangle
* Rise/Run/Angle
* Sphere
* Trapezoid
* Triangle

= MEASUREMENT
* Tape Measure Feet Inches Calculator
* GPS Measure (experimental)
- Measure one point to another
* Drill Bit & Pilot Hole Conversion

= LANDSCAPING
* Aggregate Calculator
- Rectangle/Round
- Variable Materials & Densities
* Drainage
- Rational Equation

= BUSINESS
* Sq/Linear Ft Construction Cost Estimator
* Discount
* Margin & Gross Profit
- Customer Price, Markup Profit, Project Overhead, Company Overhead
* Overtime
- Regular, Overtime & Gross Pay
* Sales Tax
* Task Time
* Travel Time

Category : Productivity

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Reviews (29)

Bob. D. Sep 3, 2019     

Filled with dozens of useful jobsite math calculators. Very handy app. I would like to ask if you could include an option in the Acreage calculator to handle odd shaped lots. Add input fields for each side and angles then calculate the area. For example my lot has only one right angle and none of the four sides are the same length.

Kev. N. Sep 18, 2020     

This app is Handy enough however the calculations are incredibly basic. This is not telling me anything I can do on my own with a regular calculator. I'm certain has merits but not for something I'm going to pay for. Sorry.

Kyl. C. Jun 22, 2019     

pretty good construction app. Could use options that support advanced framing calculations.

Eri. M. Mar 20, 2019     

Cant do better, for free. Great job staff/developers

Bil. M. Apr 14, 2020     

No updates for Android, was of time and money, requested refund

Bry. C. Jan 5, 2020     

I have built three houses with this app. I love it.

Hop. N. Apr 30, 2016     

Can you add something in for pier block. The spacing. How many needed for a deck. But did rechecking on my own math, realized I over shot on balusters and risers on steps. I hate the idea of paying for something. But was encouraged after reading your reviews and noticed you were Johnny on the spot. Contacting and willing to make this a incredible app. Have a great day.

A. G. u. Jun 11, 2017     

Great app, I use it very often and it's very accurate. Only one issue i noticed when using the advanced rafter function. The 'total rise' never seems to be right. It's off by about 3". Other then that it is a very well built app and I hope this issue could be resolved

A. G. u. Oct 30, 2018     

This cuts down on my time be hind a pencil and makes on the fly estimates more rock solid. 2018 and I still love this app.

Ben. K. May 21, 2016     

Being a DIYer I find myself referring to this app because of its usefulness. I've had this app for over 3 years and it continues to improve. Kudos to the developer for keeping it up to date. Update: As of May 2016 I'm still using this app.

Har. P. Nov 28, 2016     

Unless you're a drop ceiling Mechanic you can't beat this app. Well worth the small price.

Mic. C. Sep 22, 2015     

I would give this a 4 star because its pretty good for many things, but the Measurement (to multiply tape-measure fractions like "11'รท3-7/8 = x" ) has me totally stumped or it doesn't work. I've had to download another calculator to use that function.

A. G. u. Sep 8, 2019     

Well worth the money. Its actually better than any of the handhelds you can buy at the home centers. I really should use it more , its capable of so much

Jon. B. Apr 13, 2016     

I am most happy with your paid app calculator; however, consider adding more features to the tile section. Such as grout width/spacing; the 3, 4, 5 rule; layout parameters; tile runs; use the euclidean algorithm to find the ideal tile size for a given space based on available tile size options. Thank you for considering and always improving your app.

C. D. Sep 8, 2015     

Custom residential project manager, this app is just what you need if your application and materials are constantly changing. Makes me more efficient, and anyone familiar with construction knows time is money.

Tud. S. A. I. Mar 18, 2017     

I'm a framing carpenter and I loved. To bad I can't download on the iPhone.

Bob. R. Oct 6, 2015     

This is one of the most complete construction calculators I've tested. At least they didn't over do it, by adding unnecessary formulas not related to construction like some have done. This is one comprehensive construction calculator.

Stu. D. Jan 6, 2016     

After much consideration i purchased this app as i find the drawings useful. I do note that while metric input is accepted for the calculators, it is not available for specifying width of the mortar joints in a masonry wall. It would be great if this could please be rectified along with the other imperial only figures (the drill pilot hole chart for example). A pitch guage would also be a welcome addition.

Sco. B. Jan 11, 2017     

I've used this app on 3 phones now and it's very handy. Would it be possible to add a ductulater to it or would that be to specialized?

Mic. W. Dec 19, 2016     

This app is just awesome ..I use it a lot

Cre. Aug 11, 2015     

Works great for what I needed it for.

Ed. R. Dec 21, 2015     

Great app saves a lot of time.

One. R. Aug 9, 2015     

Surprised .......!!!!! There is not available the volume of trapezoid ... If you put value for trapezoid then it comes with area of trapezium.......what a shame.....!!!!!! Hello plz tell me What is the trapezium and trapezoid ?????!??

Way. K. Nov 26, 2015     

Wow, I Loves it!!

Dou. O. Aug 10, 2015     

I need a siding materials app, this one sucked even more than the free apps, I want my money back!!

Bra. L. Dec 11, 2016     

Construction calculator and estimator

Aja. B. Sep 30, 2014     

I have downloaded all other paid construction calculators available on play store. This is the most comprehensive calculator for construction purpose . There was some problem with rebar nodule. Mr Mike took pain to correct at the earliest and inserted some extra values for my use. It still need improvements in some modules . The developer had promised to incorporate them soon.

Bar. L. Oct 15, 2014     

So far I have tested it and found the following. No mention that you cannot obtain a refund if you are not happy with the product, Google has a 2 hour window but this app does not, no trial to judge the app to see if it met my needs, some of the screens do not display the results correctly, do not like going into the set up to change from imperial to metric as I was under the impression that it would be and easy choice. This is only after 30 minutes of playing around with the product. Stay tuned for more.

Vic. R. Jun 4, 2015     

Finally I found a calculator that I am sure will not get lost or broken. The radius function, drop ceilings, wall framing and more, are functions are I use in a regular basis, and now I have all them together in my phone. What else can I say about this app. Great!! And well worth the price.