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📐 Master your measurements, crush your calculations, and never waste a scrap!
The Calculated Industries 4400 TradesmanCalc is a compact, professional-grade engineering calculator designed for tradespeople and technical students. It excels in handling complex fractions, unit conversions between Imperial and Metric, and advanced trigonometric and geometric calculations. With dedicated keys for applied math problems and a safety-compliant battery design, it streamlines precision work in welding, metal fabrication, engineering, and drafting—saving time, reducing errors, and preventing material waste on every project.






| ASIN | B009FFS3FK |
| Best Sellers Rank | #107,549 in Office Products ( See Top 100 in Office Products ) #118 in Scientific Calculators |
| Brand | Calculated Industries |
| Calculator Type | Engineering/Scientific |
| Color | Multicolor |
| Compatible Devices | Standalone Device |
| Customer Reviews | 4.7 4.7 out of 5 stars (183) |
| Display Type | LCD |
| Enclosure Material | Metal |
| Item Dimensions L x W | 5.5"L x 3"W |
| Item Type Name | Construction calculator |
| Item Weight | 118 g |
| Manufacturer | Calculated Industries |
| Manufacturer Contact Information | CARSON CITY, NV, 89706 US |
| Mfr Part Number | 4400 |
| Model Name | 4400 6339950 |
| Model Number | 4400 |
| Number of Batteries | 1 Lithium Metal batteries required. (included) |
| Number of Items | 1 |
| Power Source | Battery Powered |
| Screen Size | 67.74 centimeters |
| UPC | 696333554244 799916186365 098584001315 |
| Unit Count | 1 Count |
| Warranty Description | Full One-Year Limited Warranty |
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