Calculated Industries 4020 Measure Master Pro: Feet-Inch-Fraction & Metric Construction Math Calculator for Accurate Measurements

Jorge Carvalho: Good

United States on Sep 17, 2023

Sknydip: My old carpenter calculator bit the dust so I bought this as a replacement. Very happy with how easy this one is too use. Lots of features but not loaded with excessive features. I'm a homeowner handyman, not building a 6000 sf mansion.

United States on Sep 13, 2023

kevin: Works good! EASY TO READ!

United States on Jul 18, 2023

Ben: Parfait pour égout / aqueduc en génie civil.

Canada on Jun 25, 2022

Amazon Customer: The previous foot-inch calculator that I bought in 1985 finally bit the dust. It was sort of a shame I had to buy a new one, with so little time left in my work career, but if that "primitive" version, also by Calculated Industries, lasted so long, I would hope that the new one would too.
It works just fine, but the older version had a single button for "Convert to," which the new version does not have. But if you double click the "foot" key, it switches from a decimal feet (say, 5.5') to foot/inches (say, 5'-6").
Also a plus, the hard, slip on back shell can be reversed to be a hard cover for the front of the unit during transit. My old calculator, with a soft cover, occasionally turned on during transit, using up battery life.

United States on Feb 26, 2022

jofflerjoffler: Working in an engineering office, I need this. I'd used the ProjectCalc (also by CI) for 20 years. I bought it for $9 at the big blue retailer (you know the one with its own quirky set of meme-worthy shoppers showing more unsightly butt and bosom crack than anyone has ever wanted to see). It still works but the keys have gotten a little lazy so I invested in this one. It works really well. The only complaint I have about the Measure Master Pro calculator is that I wish it had the attached cover so the unit opens like a book. On the ProjectCalc, the cover folds all the way back behind the calculator. the Measure Master Pro's cover has to be slid off the front and slid onto the back side. What I don't like about that is that the fit is so tight it's not easy to pry it down so it can slide of, no matter what side it's on. As a result (and the picture shows this) I've had to not slide the cover fully on so it's easy to remove. Technically, I don't have to do that. I could just leave it on my desktop and it'll be fine. But I'm to obsessive-compulsive to do that so I have to close it and put it in its place in the top drawer. Normally, I suppose having the cover not fully on is ok, but,...

United States on Oct 07, 2021

MR: Takes some getting used to but very powerful tool for tradesmen

United Kingdom on Jun 20, 2020

Jay: Bought this for my wife who is an architect and interior designer.
She loves it!
Makes her life so much easier flirting with metric and imperial.

Canada on May 27, 2020

Sari: This is very useful for my job. Great product and fast shipping as well.

Canada on May 05, 2020

TDA: I love it. I’m terrible at math and measurements and this calculator makes it all so much easier. It I very intuitive. I use it everyday now (though at first I was intimidated by it)

Canada on May 03, 2019