Engineering Calculator & Units

Engineering calculator and scientific calculator in one app: a unit converter with 28 categories, function graphs, 37 ready calculators for construction, mechanics and electronics, and a formula library. It includes a metal weight calculator for steel bars, sheet, pipe and angle, a plot area calculator that measures land by coordinates, and footing concrete for stepped and tapered footings. For students, engineers, builders and welders.

CALCULATOR MODES (9)
Basic, scientific, engineering, programmer, RPN, matrix, vector, complex and equation solver. ANS, memory, constants, logarithms, factorials and degree/radian trigonometry. Programmer mode: BIN/OCT/DEC/HEX, 8/16/32/64-bit, AND/OR/XOR/NOT, shifts, ASCII/Unicode, Unix time and Base64.

METAL WEIGHT
Flat, round, square and hexagon bars, sheet / plate, round tube, square and rectangular tube, equal and unequal angles. Steel, stainless steel, aluminum, copper, brass, cast iron, titanium or a custom density. You get the section area, mass per meter (kg/m), one piece and the total in kg: steel weight and pipe weight without weight tables.

CONSTRUCTION CALCULATOR
Concrete volume, stepped footing volume (stepped or tapered footing, concrete with waste), room, tile, paint, plaster and brick quantities, slope and stairs. Plot area by coordinates measures a land plot of any shape with 3 to 50 vertices: area in m², hectares and ft², perimeter, and a warning when the edges cross.

UNIT CONVERTER (28 CATEGORIES)
Length, area, volume, mass, temperature, pressure, energy, power, speed, acceleration, force, density, torque, flow, angle, voltage, current, resistance, conductance, capacitance, inductance, charge (mAh, Ah), magnetic flux density, luminous flux, time, frequency, data and fuel consumption. The input takes arithmetic too: type 2*500 or (7+3)/2.

ELECTRONICS, MECHANICS AND PHYSICS
Ohm's law, voltage divider, series and parallel resistance, current divider, LED resistor, RC/RL time constants, decibels, resistor color code, RLC circuits, voltage drop, three-phase power, cable sizing and breaker selection. Torque, gear ratio, spring force, beam deflection, friction, traction power, kinematics, work, energy, momentum, density, ideal gas, pH and geometry.

GRAPHS, FORMULAS AND PROJECTS
Several functions on one graph with roots, minima, maxima, intersections, derivatives and integrals. Ready formulas and your own formulas with variables. History with search, notes and tags; projects. With Pro: templates, CSV and PDF export, SVG graphs and encrypted backup. PDF reports print in all 14 interface languages, Cyrillic, Arabic and Hindi included.

WHERE YOUR DATA LIVES
Calculations, history, projects and backups are stored in the app on your device. The calculator, converter, graphs and tools work offline; Google Play needs the internet for purchases and the rating prompt.

FREE AND PRO
Free: every calculator mode, the whole unit converter, graphs, all 37 tools including metal weight, plot area and stepped footing, the formula library, 250 history entries, one project, 5 of your own formulas. Pro through Google Play, as Lifetime (one-time purchase) or Monthly (subscription): unlimited projects and history, your own units, keyboard macros, backups and backup versions, advanced graph presets, exports, themes and templates.

Important: results are estimates and helper calculations. Check critical engineering, electrical, construction or safety-related work with certified tools, current standards, manufacturer data and qualified professionals.

Recent changes:
Build #101043
https://gi-gante.com/apps/engineering-calc/changelog/