Generator Capacity Calculation & Selection
Calculate preliminary diesel generator capacity from current or power for early selection.
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Free online calculators for preliminary engineering estimates—from diesel generator capacity selection to cable size, electrical power, fuel use, and steel weight. Results support early technical review, not final design.
Power & Energy
Electrical Power Calculator
Calculate current, kW and kVA for single-phase or three-phase systems.
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Solar Energy Calculator
Estimate PV capacity, panel count, inverter and off-grid battery size.
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Cable Size & Voltage Drop
Preliminary voltage drop and cable size estimation for power circuits.
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Diesel Generator Fuel Consumption
Estimate hourly, daily and monthly fuel use and tank runtime.
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UPS & Battery Calculator
Estimate UPS capacity, battery energy and amp-hour requirement.
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Capacitor Bank Calculator
Estimate kVAr compensation required for power factor correction.
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Steel & Metal Weight Calculator
Calculate theoretical weight for common steel and metal profiles.
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Construction Calculator
Concrete, rebar, block, paint and area-volume calculations.
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Tank Volume Calculator
Calculate vertical cylinder, horizontal cylinder and rectangular tank volume.
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Engineering Unit Converter
Convert length, area, volume, mass, pressure, power, energy, temperature and flow units.
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