Engineering Calculators
Professional engineering calculators for electrical, mechanical, thermal, structural, and fluid calculations. Free online tools designed for engineers and technical professionals.
All Engineering Calculator Tools
34 toolsElectrical Calculators
11 toolsElectrical Calculator
Calculate electrical circuits and power
Structural Calculator
Calculate structural loads and stresses
Compression Ratio Calculator
Calculate engine compression ratios
Cylinder Volume Calculator
Calculate cylinder volumes
Ohm's Law Calculator
Calculate voltage, current, and resistance using Ohm's Law
Voltage Drop Calculator
Calculate voltage drop in electrical circuits
Wire Size Calculator
Calculate appropriate wire size for electrical circuits
Parallel Resistor Calculator
Calculate parallel resistor values
Watts to Amps Calculator
Convert watts to amperes
Size Electrical Wire Calculator
Calculate electrical wire sizing requirements
Balance Equation Calculator
Balance chemical equations and reactions
Mechanical Calculators
3 toolsFluid & Thermal Calculators
7 toolsThermal Calculator
Calculate heat transfer and thermal properties
Fluid Calculator
Calculate fluid dynamics and flow
Air Flow Calculator
Calculate air flow rates and pressure
BTU Calculator
Calculate British Thermal Units
Tank Volume Calculator
Calculate tank volumes and capacities
Dew Point Calculator
Calculate dew points for engineering applications
Bullet Energy Calculator
Calculate bullet kinetic energy and ballistics
Mathematics & Geometry Calculators
4 toolsChemistry Calculators
7 toolsMolarity Calculator
Calculate molarity of solutions
Molar Mass Calculator
Calculate molecular weight and molar mass
Dilution Calculator
Calculate solution dilutions
Density Calculator
Calculate density of substances
Balancing Chemical Equations
Balance chemical equations automatically
Mole Calculator
Calculate moles from mass and molar mass
Chemistry Calculator
General chemistry calculations and conversions