Engineering Calculators
50+ free, accurate engineering calculators for fluid dynamics, mechanical design, electrical systems, and process engineering. Built for plant engineers, maintenance teams, and procurement professionals.
235,000+
Monthly Calculations Actioned
50+
Calculators Available
6
Engineering Disciplines
200,000+
Engineers Served
Fluid Dynamics & Piping
Pipe flow, pressure drop, pump sizing, hydraulic systems, and fluid mechanics calculations.
Pipe Flow Rate Calculator
Calculate volumetric flow rate, velocity, and Reynolds number
18,000/pm calculations actionedPressure Drop Calculator
Darcy-Weisbach and Hazen-Williams pipe pressure losses
8,000/pm calculations actionedFlow Velocity Calculator
Fluid velocity from flow rate and pipe dimensions
4,200/pm calculations actionedPipe Size Calculator
Optimal pipe diameter from flow and velocity
4,000/pm calculations actionedPipe Friction Loss Calculator
Total friction losses in piping systems
3,800/pm calculations actionedPipe Wall Thickness Calculator
ASME B31.3 pressure pipe wall thickness
2,800/pm calculations actionedOrifice Flow Calculator
Orifice plate flow measurement and sizing
1,400/pm calculations actionedPump Calculator
TDH, pump power, NPSH, and affinity laws
7,000/pm calculations actionedHydraulic Calculator
Cylinder force, pump flow, and pressure drop
6,500/pm calculations actionedValve Calculator
Cv/Kv flow coefficient and valve sizing
1,800/pm calculations actionedMechanical Engineering
Torque, gear ratios, beam loads, shaft speed, belt and chain drives, and structural mechanics.
Torque Calculator
Calculate torque, force, and moment arm relationships
12,000/pm calculations actionedMotor Power Calculator
Electric motor power, efficiency, and sizing
5,000/pm calculations actionedGear Ratio Calculator
Gear ratio, output speed, and torque multiplication
4,800/pm calculations actionedBeam Load Calculator
Simply supported and cantilever beam deflection and stress
3,100/pm calculations actionedShaft Torque Calculator
Shaft power, torque, and RPM relationships
2,500/pm calculations actionedMotor Speed Calculator
Synchronous speed, slip, and actual RPM
2,400/pm calculations actionedBelt Length Calculator
V-belt and flat belt length and tension
1,200/pm calculations actionedBolt Torque Calculator
Bolt tightening torque and clamp force
1,100/pm calculations actionedRPM & Cutting Speed
Spindle RPM from cutting speed and diameter
4,500/pm calculations actionedConveyor Calculator
Belt conveyor capacity, power, and speed
6,000/pm calculations actionedBearing Life Calculator
L10 bearing life and rating life calculations
1,900/pm calculations actionedElectrical Engineering
Electrical power, motor sizing, current calculations, and energy consumption analysis.
Manufacturing & Materials
Steel weight, material density, machining speeds, welding, and fabrication calculations.
Steel Weight Calculator
Weight of steel plates, bars, pipes, and profiles
9,000/pm calculations actionedMaterial Density Calculator
Density and mass of engineering materials
2,700/pm calculations actionedWelding Heat Input Calculator
Arc welding heat input, preheat, and interpass temp
2,600/pm calculations actionedFeeds & Speeds Calculator
CNC machining feed rates and cutting speeds
900/pm calculations actionedChip Load Calculator
Chip load per tooth for milling operations
800/pm calculations actionedMaterial Removal Rate
MRR for turning, milling, and grinding
600/pm calculations actionedProcess Engineering
Heat transfer, thermal expansion, steam, compressed air, tank volumes, and process design.
Heat Transfer Calculator
Conduction, convection, and heat exchanger sizing
3,200/pm calculations actionedTank Volume Calculator
Volume of cylindrical, rectangular, and conical tanks
3,000/pm calculations actionedAir Compressor Size Calculator
Compressed air requirements and compressor sizing
3,500/pm calculations actionedThermal Expansion Calculator
Linear and volumetric thermal expansion of materials
1,300/pm calculations actionedSteam Table Calculator
Steam properties: pressure, temperature, enthalpy
1,500/pm calculations actionedWater Usage Cost Calculator
Industrial water consumption and cost analysis
500/pm calculations actionedGeneral & Conversion Tools
Unit converters, general engineering tools, and productivity calculators.
Unit Converter (Engineering)
Convert pressure, flow, temperature, force, torque, power & more
90,000/pm calculations actionedWeighbridge Calculator
GVM compliance, axle load check (SANS 10231), payload & freight cost per ton — South Africa
1,500/pm calculations actionedTakt Time Calculator
Available time per unit for production planning
1,000/pm calculations actionedOEE Calculator
Overall Equipment Effectiveness availability, performance, quality
2,000/pm calculations actionedCycle Time Calculator
Production cycle time and machining time
800/pm calculations actionedEngineering Calculators for South African Industry
ManufacturingEzyFind provides South Africa's most comprehensive library of free engineering calculators. Designed for working engineers in mining, manufacturing, chemical processing, and utilities, every calculator is built to engineering standards with both metric and imperial units.
Our calculators are used daily by plant maintenance engineers, process engineers, procurement teams, and engineering consultants who need fast, reliable calculations for pump sizing, pipe design, motor selection, and structural analysis.
Industries Served
- Mining & mineral processing
- Chemical & petrochemical plants
- Water & wastewater treatment
- HVAC & building services
- Agriculture & irrigation
- Food & beverage manufacturing
- Automotive & general manufacturing
- Power generation & utilities