Engineering Toolkit

Engineering Calculator, Mechanical Reference & Industrial Design Companion

Engineering Toolkit is an all-in-one engineering toolkit for engineers, technicians, machinists, drafters, and industrial professionals who need precise calculations, technical references, project utilities, and documentation tools in one integrated platform.

The app combines engineering calculators, mechanical design tools, fabrication planning utilities, dimensional standards, engineering knowledge, and productivity features to support real industrial workflows.

Designed for mechanical engineering, manufacturing, fabrication workshops, and industrial projects.

⚙ Mechanical Engineering Tools

Tools for practical machine design and mechanical calculation.

• Gear ratio calculator & gear simulation
• Parallel key design reference
• Bolt & nut torque reference
• Thread data (metric reference)
• Shaft & shoulder reference
• Hardness conversion (HRC, HB, HV)

🔩 Fabrication & Manufacturing Tools

Utilities designed for workshop and fabrication planning.

• Cutting Planner for bar material optimization
• Cutting layout visualization
• Material efficiency analysis
• Waste estimation for fabrication planning

📐 Engineering Standards & Dimensional Reference

Quick technical references for daily engineering work.

• General tolerance reference
• Thread standards
• Clearance hole reference
• Tapping drill tables
• Pipe schedule tables
• Bearing fit guidance
• Surface process reference

More than 50 engineering reference tables are available for quick lookup.

🧮 Engineering Calculator & Unit Converter

• Scientific engineering calculator
• Engineering math functions
• Multi-unit converter (length, pressure, energy, torque, power, speed, etc.)
• Precision formatting for engineering calculations

Designed for field engineers and workshop environments.

📘 Engineering Dictionary

Engineering Dictionary provides explanations of common engineering terms used in:

• Mechanical engineering
• Manufacturing & machining
• Material science
• Dimensional tolerancing
• Engineering drawing


The dictionary is designed as a practical engineering glossary for learning and quick reference.

📊 Project & Productivity Tools

Project management utilities designed for engineering workflows.

Project Cashflow
• Track project income and expenses
• Category analysis
• Financial overview

Project Profit Analysis
• Cost planning
• Profit estimation
• Deviation analysis

Project Timeline
• Task scheduling
• Visual progress tracking

Work Planner
• Work calendar
• Shift planning
• Daily task tracking

✏ Smart Engineering Notes

A built-in rich text editor for engineering documentation.

• Technical note writing
• Engineering memos
• Project documentation
• Auto save support
• Export notes to PDF

Designed as a lightweight engineering notebook for daily work.

📄 PDF Report Export

Generate clean engineering reports for documentation.

• Project reports
• Cutting planner results
• Engineering notes
• Project summaries

Reports can be exported and shared as PDF documents.

✏ 2D Sketch (Early Version)

Create simple technical sketches directly on your device.

• Line
• Circle
• Rectangle
• Text annotation

Designed for quick engineering concept sketches and layout ideas in the field.

🧠 Engineering Brain Challenge

A unique feature designed to train engineering thinking.

• Solve analogy-based engineering puzzles
• Guess technical terms through logical reasoning
• Improve analytical and problem-solving skills


Engineering Toolkit is built by engineers for engineers, providing practical tools for mechanical design, fabrication planning, industrial calculations, and engineering documentation.

Recent changes:
v1.2.1+21

• Added Eisenhower Matrix
• Redesigned Homepage UI
• Improved Unit Converter & Project Timeline
• Added Local Notification
• UX improvements & bug fixes (Smart Note, Cashflow, Cutting Planner, Reports)