Engineering Buddy

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Everyone
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Everyone
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About this app

Engineering Buddy is a comprehensive toolkit designed for engineers, fabricators, technicians, and students working in mechanical and structural engineering.

TOOLS INCLUDED:

βš™ Weight Calculator
Calculate weight for 9 profiles β€” Flat Bar, Round Bar, Square Bar, Hexagonal Bar, Round Tube, Square Tube, Rectangular Tube, Angle, and Plate β€” across multiple materials including steel, aluminum, copper, brass, and more.

πŸ“ Profile Calculator
Calculate cross-sectional area, moment of inertia, and section modulus for polygon bar stock profiles.

πŸ”© Thread Reference
Complete metric and imperial thread data β€” major diameter, minor diameter, pitch, tap drill sizes for coarse, fine, and non-standard threads.

πŸ“ Unit Converter Pro
10 conversion categories β€” Length, Area, Volume, Mass, Temperature, Pressure, Force, Energy, Speed, and Hardness. Clean chip-based interface with instant results.

πŸ”¬ Material Reference DB
92 engineering materials including structural steels, stainless steels, alloy steels, tool steels, and cast irons. EN standard numbers, delivery conditions, yield strength, tensile strength, elongation, and hardness data.

πŸ”§ Pipe Schedule DB
Full ASME B36.10 and B36.19 pipe data. Search by pipe size, OD, OD+ID, or wall thickness with tolerance filters.

⚑ Welding Electrodes
36 electrodes across SMAW, MIG-GMAW, TIG-GTAW, and FCAW processes. AWS digit-by-digit decode, amperage tables, base metals, applications, and ISO equivalents.

πŸ”£ Welding Symbols
AWS A2.4 and ISO 2553 welding symbols reference. 24 symbols across 6 categories with placement rules, dimension guides, and AWS vs ISO comparison.

DESIGNED FOR THE FIELD
Dark engineering theme optimized for workshop and site use. All tools work fully offline β€” no internet connection required, no ads, no data collection.
Professional engineering calculators & reference tools
Updated on
Sep 5, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • No data collected
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What’s new

What's new in 2.0.0:
β€’ Added Tolerance/Fit Calculator (ISO 286 preferred fits) and Cutting Parameter Calculator (Turning & Milling, with material-based cutting speed suggestions)
β€’ All-new icons across the home screen, Weight Calculator profiles, and Unit Converter Pro
β€’ Improved compatibility with the latest Android versions
β€’ Bug fixes and under-the-hood improvements

Still 100% offline, ad-free, and collects zero data.
Content rating
Everyone
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App support

About the developer
Dilip George
dilip.sincity@gmail.com
United Arab Emirates