100 Essential Engineering Tools
All tools are designed to run instantly on your iPhone with zero internet required.
Core Categories
Mechanical Engineering
Torque & power calculators
Beam deflection & stress tools
Thermal expansion
Gear ratios & pulley systems
Pressure, force & area
Electrical Engineering
Ohm’s law & power calculators
Voltage dividers
Resistor & capacitor tools
Battery life estimation
Wire resistance
Civil & Structural
Concrete & material estimators
Load & stress tools
Slope & grade
Tank & volume calculators
Basic flow & pressure
Math & General Engineering
Unit conversions (full system)
Scientific & geometry tools
Ratios, interpolation & formulas
Energy & physics calculators
Density, velocity & more
Designed for Real-World Use
Engineer’s Field Toolkit is built like a precision instrument.
Fast, instant calculations
Clean professional dark interface
Works completely offline
All formulas visible
Unit switching built in
Favorites & recent tools
No login required
This is the app you reach for when you need answers immediately.
