Civil Engineering
Structural analysis, beams, columns, foundations
22 calculatorsSimple Beam · RC Beam Design · Pipe Flow
by Nexovia LLC
101 Professional Engineering Calculators
13 disciplines. SI & Imperial units. Step-by-step results. All on your Android device.
101 Calculators13 Disciplines58 Free + 43 Pro
Built for Engineers
101 Real Calculators
Every calculator runs actual engineering formulas — beam deflections, CSTR design, orbital mechanics, Darcy-Weisbach pipe flow. Not unit converters. Not formula viewers. Calculators.
SI & Imperial, Your Choice
Switch between SI (m, kg, N, Pa, °C) and Imperial (ft, lb, lbf, psi, °F) globally in Settings. All 101 calculators respect your preference.
Step-by-Step Results
Every calculation shows the formula used, the step-by-step solution, your inputs in context, and the primary result — so you understand what the calculator did, not just what it returned.
Calculation History, On-Device
Every calculation is saved locally to your device using Room database. No cloud account needed. Browse, review, and re-open past calculations anytime.
13 Engineering Disciplines
From structural concrete to orbital mechanics — in one app.
Mechanical Engineering
Thermodynamics, fluid mechanics, machine design
15 calculatorsStress & Strain · Gear Design · Heat Exchanger
Electrical Engineering
Circuit analysis, power systems, signals
15 calculatorsOhm's Law · RLC Circuit · Cable Sizing
Chemical Engineering
Process calculations, reactions, separations
9 calculatorsCSTR Design · Distillation · Valve Sizing
Aerospace Engineering
🔒 PremiumAerodynamics, propulsion, orbital mechanics
6 calculatorsLift & Drag · Rocket Equation · Orbital Mechanics
Industrial Engineering
Production planning, quality control, manufacturing
6 calculatorsMachining Time · Tolerance · Welding
Environmental Engineering
Water treatment, air quality, waste management
5 calculatorsWater Quality · Carbon Footprint · Wastewater
Structural Steel Design
🔒 PremiumSteel member design per AISC codes
5 calculatorsSteel Beam · Steel Column · Connection
Materials Science
Material properties, phase diagrams, alloys
5 calculatorsMaterial Props · Hardness · Corrosion Rate
Geotechnical Engineering
Soil mechanics, foundations, retaining walls
3 calculatorsSoil Compaction · Seepage · Retaining Wall
Surveying
Land measurement, elevation, mapping
4 calculatorsTraverse · Area Calc · Coord Geometry
Petroleum Engineering
🔒 PremiumReservoir analysis, drilling, production
3 calculatorsDrilling Mud · Reservoir · Well Hydraulics
Renewable Energy
Solar, wind, battery storage systems
3 calculatorsSolar Panel · Wind Turbine · Battery Storage
🔒 Aerospace, Structural Steel & Petroleum unlock with one-time Premium ($4.99)
See It In Action
Dashboard — 13 Engineering Disciplines
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- 58 engineering calculators
- Civil Engineering (22 calculators)
- Mechanical Engineering (15 calculators)
- Electrical Engineering (15 calculators)
- Chemical Engineering (9 calculators)
- Industrial Engineering (6 calculators)
- Environmental Engineering (5 calculators)
- Materials Science (5 calculators)
- Geotechnical Engineering (3 calculators)
- Surveying (4 calculators)
- Renewable Energy (3 calculators)
- Step-by-step results on every calculator
- Calculation history (on-device)
- Favorites list
- SI & Imperial unit support
- Ad-supported (banner + occasional interstitial)
Best Value
Premium
$4.99USD
One-time purchase · Lifetime access
- Everything in Free
- Aerospace Engineering (6 calculators — Lift & Drag, Thrust, Flight Performance, Orbital Mechanics, Rocket Equation, Mach Number)
- Structural Steel Design (5 calculators — Steel Beam, Steel Column, Connection, Steel Truss, Base Plate)
- Petroleum Engineering (3 calculators — Drilling Mud, Reservoir, Well Hydraulics)
- Unlimited calculation history
- Ad-free experience
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