Engineering Calculator & Units

Engineering Calculator with unit converter, function graphs and 100+ formulas for students, engineers and electricians. Convert units in seconds, plot graphs, solve equations, calculate Ohm's law, voltage drop, cable size and beam loads. Fully offline, no account, no data collection.

WHO IT'S FOR:
- Students and teachers: scientific calculator, equation solving, graphs and a formula library for study and exams.
- Engineers and technicians: unit converter, matrices, vectors, complex numbers and mechanics helpers for daily work.
- Electricians: Ohm's law, voltage drop, cable sizing, three-phase power and resistor color codes.
- Builders and construction workers: concrete, tile, paint, slope, stairs and brick estimates on site.
- Mechanics and programmers: torque, gears, springs, plus BIN/OCT/DEC/HEX and bit operations.

EngiCalc includes:

- Basic and engineering calculator modes with ANS, memory, constants, powers, roots, logarithms, factorials, percentages, and degree/radian trigonometry.
- Programmer calculator with BIN/OCT/DEC/HEX, signed and unsigned values, 8/16/32/64-bit modes, AND/OR/XOR/NOT, shifts, rotates, ASCII/Unicode, Unix time, Base64, and URL tools.
- RPN, matrix, vector, complex number, and equation-solving workflows for technical math.
- Unit converter for length, area, volume, mass, temperature, pressure, energy, power, speed, acceleration, force, density, torque, flow, angle, electrical units, time, frequency, data, and fuel consumption.
- Electronics helpers for Ohm's law, voltage drop, voltage divider, series/parallel resistance, current divider, three-phase power, cable sizing, LED resistors, RC/RL time constants, decibels, resistor color code, and RLC circuits.
- Construction, geometry, mechanics, physics, and chemistry helpers for concrete, tile, paint, plaster, slope, stairs, bricks, torque, gears, springs, beams, friction, power, work, kinetic energy, momentum, ideal gas, concentration, mass fraction, and pH.
- Graphing with zoom, pan, multiple functions, value analysis, roots, min/max samples, derivative and integral estimates, intersections, SVG export, and project saving.
- Formula library, favorites, custom reusable formulas with variables, and custom linear units.
- Local history, searchable records, notes, tags, projects, templates, CSV/PDF/text exports, and local encrypted backup/restore.
- Themes, AMOLED mode, high contrast, haptics, precision settings, language selection, and offline-first privacy.

OFFLINE & PRIVACY:
Everything works fully offline — on site, in the field or in flight. No account, no registration and no data collection: your calculations stay on your device.

PRO:
Optional Pro upgrades through Google Play unlock unlimited local history and projects, custom workflow features, advanced graph presets, exports, backup/restore, and additional customization. The free version remains a complete calculator and unit converter.

Important: Results are estimates and helper calculations. Critical engineering, electrical, construction, chemical, medical, or safety-related work must be verified with certified tools, current standards, manufacturer specifications, and qualified professionals.