EngCalc: Engineering Toolkit

Photograph a formula and get the answer, offline. Plus fifteen engineering modules: gears, tolerances, cable sizing, hydraulics and more. No ads, no tracking.

An engineering calculator that does not stop at basic arithmetic.

EngCalc opens with a familiar, fast calculator - and behind it, fifteen professional modules for when the work gets serious.

CAMERA SOLVER Photograph a formula from paper or a textbook. The app recognises it, shows it in editable form and evaluates it. Recognition runs on your device, offline - the image goes nowhere.

MECHANICAL

• Gears - ratio, output speed and torque, pitch, tip, root and base circle, centre distance
• Machine elements - bolt torque, bearings, shafts
• Thermal expansion and ISO 286 fits
• Hydraulics - cylinder force and speed

ELECTRICAL

• Ohm's law from any two values
• Series and parallel resistor networks, four-band colour code
• Cable and voltage drop - DC, single and three phase, copper or aluminium
• RC/RL filters, ADC
• Bus timing - Modbus RS485, Profinet, EtherCAT

MATHEMATICS

• Equations - linear, quadratic with complex roots, 2x2 systems
• Vectors and matrices - dot and cross product, determinant, inverse
• Function plots and a rotatable 3D surface
• Save your own formulas with variables

ALSO

• Unit converter across eight categories
• Material database - metals, plastics, composites
• Available in English, Hungarian and German

PRIVACY No account, no ads, no analytics, no tracking. All your data stays on your phone.

Calculations are indicative. For precise engineering always rely on the relevant standard and the manufacturer's datasheet.