Practical engineering estimates

Industrial Engineering Tools

Free preliminary digital calculators designed for HVAC engineering, electrical compliance, and energy audits.

AC Tonnage Calculator

Create a preliminary thermal cooling-load estimate based on room dimensions, climate zone, ceiling height, and solar exposure to size the perfect HVAC system.

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Cable Size Calculator

Estimate copper or aluminium cable size, load current and voltage drop for 230 V and 415 V industrial circuits.

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Electrical Load Converter

Convert kW, amps, HP and kVA for single-phase and three-phase preliminary electrical planning.

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DG Fuel Consumption Calculator

Estimate diesel generator fuel consumption, electricity cost and monthly running cost at your actual industrial load.

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Commercial Solar Calculator

Estimate industrial rooftop solar plant size, generation, savings, project cost and simple payback in India.

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Power Factor Calculator

Determine required capacitor sizing (kVAR) to improve energy efficiency, avoid utility penalty surcharges, and estimate indicative monthly and annual savings on electricity bills.

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Lux Level Calculator

Estimate lighting fixture requirements and layout spacing configurations for factories, warehouses, and offices per IS 3646 and National Building Code standards.

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Plan with confidence

Practical calculators for industrial engineering decisions

Use these free engineering calculators to scope an HVAC upgrade, plan power-factor correction, or review preliminary industrial lighting requirements before detailed design, equipment selection, or statutory review.

HVAC sizingEstimate cooling capacity from room dimensions and operating conditions.
Electrical efficiencyIdentify indicative capacitor-bank capacity for power-factor correction.
Lighting planningEstimate illuminance and fixture requirements for industrial spaces.
Cable sizingReview preliminary conductor size and voltage drop before detailed design.
Load conversionConvert common industrial electrical units in seconds.
DG cost planningEstimate diesel consumption and generator running cost at actual load.
Industrial solar ROIReview rooftop solar size, generation, savings and simple payback.
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