---
product_id: 714795244
title: "4020 Measure Master Pro Feet-Inch-Fraction and Metric Construction Math Calculator, Silver"
brand: "calculated industries"
price: "€ 73.20"
currency: EUR
in_stock: true
reviews_count: 7
url: https://www.desertcart.gr/products/714795244-4020-measure-master-pro-feet-inch-fraction-and-metric-construction
store_origin: GR
region: Greece
---

# Built-in Circular Math Dual Imperial & Metric Conversion Instant Unit Switching 4020 Measure Master Pro Feet-Inch-Fraction and Metric Construction Math Calculator, Silver

**Brand:** calculated industries
**Price:** € 73.20
**Availability:** ✅ In Stock

## Summary

> 📐 Master every measurement, convert like a pro, build with confidence!

## Quick Answers

- **What is this?** 4020 Measure Master Pro Feet-Inch-Fraction and Metric Construction Math Calculator, Silver by calculated industries
- **How much does it cost?** € 73.20 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/714795244-4020-measure-master-pro-feet-inch-fraction-and-metric-construction)

## Best For

- calculated industries enthusiasts

## Why This Product

- Trusted calculated industries brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Formula-Free Circular Math:** Instantly solve for circle areas, circumferences, radii, and arcs without memorizing formulas—ideal for curved decks, driveways, and arches.
- • **Durable & User-Friendly Design:** Protected by a hard slide cover, equipped with long-life batteries, and supported by bilingual reference guides and a 1-year warranty for daily reliability.
- • **Smart Cost & Material Estimation:** Input unit costs to automatically calculate total material expenses, backed by a paperless tape for error-free double-checking.
- • **Comprehensive Dimensional Calculations:** Calculate linear, area, and volume measurements intuitively, just as you speak them, ensuring precision on every jobsite.
- • **Seamless Global Measurement Conversion:** Effortlessly toggle between feet-inch-fraction and metric units with a single button press—perfect for international projects and global suppliers.

## Overview

The Calculated Industries 4020 Measure Master Pro is a precision construction calculator designed for professionals who demand accuracy and efficiency. It converts between Imperial and Metric units instantly, performs linear, area, volume, and circular math calculations without formulas, and estimates material costs with built-in cost functions. Durable and user-friendly, it includes a protective cover, bilingual guides, long-life batteries, and a 1-year warranty, making it an indispensable tool for modern construction and project management.

## Description

Calculated Industries 4020 Measure Master Pro Feet-Inch-Fraction and Metric Construction Math Calculator, Silver

## Features

- EASILY CONVERT between dimensional formats including U.S. Imperial and metric to help you work with material and plans from Global suppliers regardless of the measuring units used; with a push of a button The calculator can change them into the measurement types you prefer to work in
- HELPS YOU CALCULATE jobsite solutions in Metric and Imperial units using linear, Area and volume measurements; Measure Master Pro makes these calculations even easier because you enter the numbers just as you say them; simply Factor in your waste allowances and you’ll have just what you need to build
- BUILT-IN CIRCULAR MATH gives you formula-free circles, areas, circumference, radius and arcs to layout a circular driveway, get requirements for a curved deck or determine measurements for a gazebo arch; with this information you can build according to plan
- SOLVE UNIT COST AND PRICING by finding total material requirements then solve for total cost by entering unit cost; great for estimating. And the built-in paperless tape lets you double-check Your entries for accuracy – without having to re-enter values
- YOUR DAILY PROBLEM-SOLVER TOOL lets you handle anything that comes your way, dimensional Math, unit conversions, board feet material estimating and more. And it comes with a protective hard slide cover, easy-to-follow pocket reference guides in English and Spanish, long-life batteries and a 1-year warranty
- Work in and convert between any building dimensions, including metric
- Linear, area and volume measurements
- Find weight and weight per volume
- Instant solutions for circle area, circumference, arcs and more

## Product Details

- **Brand:** Calculated Industries
- **Color:** Silver
- **Calculator Type:** Engineering/Scientific
- **Power Source:** Battery Powered
- **Screen Size:** 3 Inches

## Images

![4020 Measure Master Pro Feet-Inch-Fraction and Metric Construction Math Calculator, Silver - Image 1](https://m.media-amazon.com/images/I/71IJwoyH2+L.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Easy to carry.
*by L***M on May 26, 2025*

If you're moving to the US for work from abroad, this calculator is an absolute must-have! It’s incredibly helpful for converting imperial measurement units to US measurement units with ease.This tool saves time and eliminates confusion. It’s user-friendly, accurate, and makes adapting to the US measurement system much smoother. Don’t start your new job without it! It’s easy to fit in your pocket and it is water proof too.

### ⭐⭐⭐⭐⭐ Yeah, I like it. Should be the last one I ever need to buy.
*by J***E on October 7, 2021*

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, again, I'm too OC for that. Some things, you just have to live with, though, and, in the grand scheme of things, it amounts to a whole lot of nothing, so I can overlook that and not let it affect its rating. How the calculator functions is, by far, more important, and it functions as intended and well.

### ⭐⭐⭐⭐⭐ Just what I needed
*by G***N on May 18, 2011*

I was in the process of using some Blum drawer slides which are manufactured in Europe. Specifications are metric with some metric to english (inches) conversions provided. I could have easily determined a milimeter to inch conversion factor but why should I have do this manual conversion again and again with the possibility of making an error due to keying in something incorrectly? I first went online. I expected that there would be "free" metric to english conversion programs. There are, but, some are quite old. Some want money but provide more capability than needed. Would the older software work correctly with my newer, Windows 7? Some were free but online and "collected" data from your online usage. Who needs that snooping? I once had a calculator that would convert back and forth so I started looking for calculators. This calculator not only solves my first problem, it also helps me in my woodworking shop by working with fractions and by converting decimal values to fractions. For example, I use a digital micrometer to makes measurements. The result is in decimal values such as .625. But what is this in equavalent fractional inches? This is an easy "head number", 5/8. But other fractions are not quite so familiar. With this calculator, you can easily convert from a decimal number to a fraction. I haven't used it for very long but I expect it to make my woodworking projects less prone to error. I think the price was also quite reasonable for a special purpose calculator.

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-03-07*