• Products
  • AccuMASTER 2-in-1 Digital Angle Gauge
  • AccuMASTER 9 Inch Digital Level
  • AccuMASTER Digital 6 Inch Caliper
  • AccuMASTER Digital Fraction Caliper
  • AirShim Inflatable Pry Bar & Leveling Tool
  • Blind Mark Magnetic Drywall Locator Tool
  • Center Mark Magnetic Drywall Locator Tool
  • ConcreteCalc Pro
  • Construction Master 5
  • Construction Master 5 En Espanol
  • Construction Master Plus EZ
  • Construction Master Pro
  • Construction Master Pro Trig
  • Construction Master Pro-Desktop
  • ConversionCalc Plus
  • DigiRoller Plus III
  • ElectriCalc Pro
  • ElectriCalc Pro NEC Upgrade Kit for Model 5065
  • ElectriCalc Pro NEC Upgrade Kit for Model 5070
  • HeavyCalc Pro
  • Home ProjectCalc
  • KitchenCalc
  • KitchenCalc Pro-Master Chef
  • Laser Dimension Master 130
  • Machinist Calc Pro
  • Machinist Calc Pro 2
  • Machinist Calc Pro International
  • Material Estimator
  • Measure Master Pro
  • Multi Mark Magnetic Drywall Locator Tool
  • Pipe Trades Pro
  • Plug Mark Magnetic Drywall Cutout Tool for Existing Outlets
  • Pocket Real Estate Master
  • ProjectCalc Plus MX (Metric)
  • Qualifier Plus 4x-Canadian
  • Qualifier Plus IIIfx
  • Qualifier Plus IIIfx-Desktop
  • Qualifier Plus IIIx
  • Quilter's FabriCalc
  • Quilter's FabriCalc & Companion Workbook
  • ReadyMax Classic Style Safety Glasses
  • ReadyMax Construction Style Safety Glasses
  • ReadyMax Fashion Style Safety Glasses
  • Real Estate Master IIIx
  • Scale Master Classic
  • Scale Master Pro
  • Scale Master Pro XE
  • Scale Master Pro XE with PC Cable
  • ScheduleCalc
  • Time Master II
  • Tradesman Calc
  • Ultra Dimension Master 50
  • Ultra Measure Master
  • Wheel Master 4D
  • Wheel Master 4S
  • Wheel Master Classic 12
  • Wheel Master Pro 12 with Case
  • Mobile Apps & Software
  • Canadian Qualifier Plus App
  • ConcreteCalc Pro App
  • Construction Master 5 App
  • Construction Master Pro App
  • Construction Master Pro for Windows
  • ConversionCalc Plus App
  • ElectriCalc Pro App
  • HeavyCalc Pro App
  • Home ProjectCalc App
  • Hot Rod Calc App
  • KitchenCalc for iPhone
  • Machinist Calc Pro 2 App
  • Machinist Calc Pro 2 for Windows
  • Machinist Calc Pro App
  • Machinist Calc Pro for Windows
  • Material Estimator App
  • Measure Master Pro App
  • Pipe Trades Pro App
  • ProjectCalc Classic App
  • Qualifier Plus IIIx App
  • Real Estate Master IIIx App
  • Tradesman Calc App
  • Ultra Measure Master App
Shopping Cart
Construction Calculators
Blind Mark Drywall Tools
Estimating & Takeoff Tools
Measuring Tools
ReadyMax Safety Glasses
Mobile Apps & Software
Parts & Accessories
Industrial Calculators
Estimating & Takeoff Tools
Measuring Tools
ReadyMax Safety Glasses
Mobile Apps & Software
Parts & Accessories
Finance Calculators
Measuring Tools
Mobile Apps & Software
Parts & Accessories
Culinary Calculators
Office & Timing
Measuring Tools
Blind Mark Drywall Tools
Woodworking & Fabricating
ReadyMax Safety Glasses
Mobile Apps & Software
Parts & Accessories
Cooking Calculators
Blind Mark Drywall Tools
Quilting Calculators
Woodworking & Fabricating
ReadyMax Safety Glasses
Mobile Apps & Software
Parts & Accessories
ProjectCalc Plus MX (Metric)
ProjectCalc Plus MX (Metric)
Click for larger image

Find a Dealer
Model # 8528
Contact us for a dealer near you

ProjectCalc Plus MX (Metric)
Reviews (8)

Available at:

Available at Bunnings Warehouse

Metric Do-It-Yourself
Project Calculator

The ProjectCalc® Plus MX Metric calculator will help you design, apply, install and finish your improvements with precision and confidence. It was designed specifically for Do-It-Yourselfers who use Metric measurements.

Its functions provide professional results on your building and home improvement projects. Store user defined materials and sizes in the Memory. Provide instant calculation for Bulk Bags, BTUs, Flooring and Custom Tile.

Get exactly what you need for virtually any project. Prevent estimating errors on material requirements to save time and money.

It helps you:

  • Work in Centimeters and Meters - including Square and Cubic formats
  • Convert between all standard building math dimensions
  • Solve square-up diagonals for truer construction
  • Calculate board feet
  • Works as a standard math calculator with +, -, +/-, ×, ÷, %, π, 1/x, x2, and √

For: Do-It-Yourselfers, Woodworkers, Hobbyists, Designers, Decorators and Landscapers.

Dimensional Math and Conversions

  • Work in Centimeters and Meters - including square and cubic formats.
  • Convert between all standard building math dimensions.
  • Square-ups--Easily solves right triangle problems. Finds the diagonal, so you can "square up" to make sure an area is perfectly square (e.g., for pouring concrete pads).
  • BTU function can convert BTU value to Kilowatt Hours for electric radiators and gas fires. Also calculates BTUs required to heat an entered volume.
  • Works as a standard Math calculator with +, -, +/-, ×, ÷, %, π, 1/x, x2, and √
  • Memory and Auto Shut-Off.

Metric Default Values
The ProjectCalc® Plus MX has metric-based default values for a wide range of projects. All default values can be changed by the user:

  • Paint: 10 sq. meters per litre
  • Wallpaper: 5.226 meters per roll (based on 520 mm x 10.05 m)
  • Tiles: 100 mm and will calculate number of tiles for an entered area with 8 additional tile sizes ranging from 50 mm to 500 mm
  • Bricks: standard brick size is 0.013975 sq. meters (based on 215 mm x 65 mm); standard paver brick is 0.02 sq. meters (based on 200 mm x 100 mm)
  • 8 x 4 Sheets: Default is 2.9768 sq. meters (based on 2440 mm x 1220 mm); additional sheet sizes are 8 x 2 (2440 x 607 mm), 6 x 2 (1819 mm x 607 mm), and 4 x 2 (1220 mm x 607 mm)


  • One Long-Life (CR1620) Battery
  • Easy-to-follow User's Guide
  • Full One-Year Limited Warranty.
Tech Specs

Product only
74 x 121 x 10 mm (2.9 x 4.75 x 0.4")
Product in package
197 x 152 x 25 mm (11.25 x 6.00 x 1.00")

Product Weight
Product only with battery
91 g (3.2 oz.)
Product in package
160 g (5.6 oz.)

1 CR1620 lithium battery (included)

Bat. Life:
Approx. 575 hours usage

Auto Shut-off:
8-12 min.

30 keys; plastic keys

360-degree flip-over, hinged, hard case.

Operating Temperature:
0-55 deg. C (32-130 deg. F)

LCD segment
11 digits (7 normal, 4 fractions)
with annunciator-legends
16 mm x 57 mm (625" x 2.25")

Overall Rating Full StarFull StarFull StarFull StarFull Star
4.88 out of 5 8
User Reviews
Great tool 5 out of 5.0
User: of Palanisami from Minneapolis
User Rating: ★★★★★
Great little tool svaes my mind when I am overloaded.

Perfect 5 out of 5.0
User: of Jaric's Int'l from Jamaica
User Rating: ★★★★★
Very handy. The size is perfect. It fits into my pocket. Very excellent. Perfect

EXCELLENT 5 out of 5.0
User: of CEDINSA from Puebla Mexico
User Rating: ★★★★★
Our company located in México, with a lot of proyects for US customers, had found in this calculator, an excellent tool to manage imperial and metric units convertions.

Cover Design 4 out of 5.0
User: from Philadelphia, PA
User Rating: ★★★★
The cover should slide on and off like a typical calculator. When the cover is open, it swings freely which gets in the way. The functions work great, operates perfectly.

this product is great 5 out of 5.0
User: from Indiana
User Rating: ★★★★★
this product is easy to use.

convencional 5 out of 5.0
User: of Titoco from boqueron , PR
User Rating: ★★★★★
muy buena maquina,la compre para replantear unos apartamento,que las medidas estaban en pies y pulgadas y las converti en metros.

Awesome 5 out of 5.0
User: from Okmulgee, Oklahoma
User Rating: ★★★★★
I wish I had knew about this sooner this thing is awesome

Saved T&M while building 5 out of 5.0
User: from Pittsburgh, PA
User Rating: ★★★★★
This product was invaluable as far as saving money on product waste & making quick calculations from the start (gravel) of building my own home to the completion (tile & grout).

CR1620 Battery CR1620 Battery

Replacement calculator battery
$5.00 CR1620 Battery | Add to Cart

• User's Guide • Pocket Reference Guide
• Spec Sheet