🧮 AI-Powered Precision

AI Calculator

Free AI-powered engineering calculator with 157 precision tools across 9 calculator categories, 17 unit converters, scientific, financial, health & programmer modes. Export professional PDF reports.

157 Calculators
9 Categories
17 Converters
📄 PDF Export

What is AI Calculator?

AI Calculator (aionlinecalculator.com) is a free, browser-based suite of 157 precision engineering calculators verified against international standards: IEC 60364 (cable sizing), IEC 60909 (short-circuit), NEC NFPA 70 (USA), BS 7671 (UK NICEIC), AS/NZS 3008 (Australia/NZ), ASME and ACI 318. Coverage: Electrical (49), Mechanical (32), Civil (41), Chemical (18), Physics (17) — plus 17 unit-converter categories, scientific, financial, health and programmer modes. All tools support professional PDF report export; no signup required.

Most-used calculators: Cable Sizing (IEC 60364, NEC, BS 7671, AS/NZS 3008), Chemical Dosing Rate, Ohm's Law, Voltage Drop, Short-Circuit (IEC 60909), BMI, Loan EMI.

Choose Your Calculator

⚡
Electrical Engineering
Ohm's Law, Power Factor, Cable Sizing (IEC 60364), Short Circuit (IEC 60909), Transformer, Voltage Drop, Motor Starting, Earth Fault, Lighting & Protection.
49 Calculators →
⚙️
Mechanical Engineering
Torque, Gear Ratio, Belt Drive, Spring, Bearing Life, HVAC Load, Duct Sizing, Pipe Flow, Pump Sizing, Heat Exchangers, Thermodynamics & Fluid Mechanics.
32 Calculators →
🏗️
Civil Engineering
Beam Analysis, Concrete Mix Design, Soil Bearing Capacity, Retaining Wall, Slope Stability, Foundation Load, Column Design, Surveying & Roads.
41 Calculators →
🧪
Chemical Engineering
Molarity, pH, Dilution, Ideal Gas Law, Mass Balance, Heat of Reaction, Distillation, Transport Phenomena & Thermodynamics.
18 Calculators →
🔭
Physics
Projectile Motion, Simple Pendulum, Wave Properties, Kinetic Energy, Gravitational Force, Electric Field, Optics, Quantum & Relativity.
17 Calculators →
🔄
Unit Converter
Length, Weight, Temperature, Pressure, Energy, Power, Force, Torque, Viscosity, Flow Rate, Data, Cooking, Numeral Systems & more.
17 Categories • 200+ Units →
💰
Financial Calculator
Loan EMI, Compound Interest, SIP Returns, Savings Goal, Retirement Planning, Tip & Split, Discount Calculator with interactive charts.
15 Calculators →
❤️
Health Calculator
BMI, BMR (Mifflin-St Jeor), Body Fat % (US Navy), Daily Calorie Needs, Ideal Weight, Waist-to-Hip Ratio, Water Intake & Blood Pressure.
10+ Calculators →
👨‍💻
Programmer Calculator
Decimal, Hex, Octal & Binary conversions. Bitwise AND, OR, XOR, NOT, Left/Right Shift. Two's Complement, IEEE 754 & ASCII.
Full Programmer Suite →