Electrical Load Calculator — Calculate Total Connected Load

Appliances (one per line: watts,quantity) Format: watts,quantity — one appliance type per line (e.g. AC 1500W ×1, bulb 100W ×5) Enter at least one valid "watts,quantity" line.

Total Connected Load

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How to Use This Tool

List each appliance type's wattage and quantity, one per line (e.g. "1500,1" for one 1500W AC).
Click Calculate Total Load to get your total connected load in kW and approximate current draw.

How Total Connected Load Is Calculated

Total Load (Watts) = Σ (Appliance Wattage × Quantity)

The result is then converted to kilowatts (÷1,000) and an approximate current draw is estimated using Amps = Watts ÷ Voltage (assuming standard 230V single-phase supply).

Why This Matters

Sizing your electrical connection: Utilities require you to declare your sanctioned load, which should comfortably cover your actual connected load
Backup power planning: Sizing a generator or inverter/UPS system requires knowing your total or essential connected load
Circuit breaker sizing: Understanding load helps electricians correctly size circuit breakers and wiring

Important Caveat: Diversity Factor

In practice, not all appliances run simultaneously at full load — electrical engineers apply a "diversity factor" (typically 0.5–0.8) to connected load to estimate realistic peak demand. This calculator shows the full theoretical connected load; for sizing a connection or generator, consider applying a diversity factor based on your actual usage patterns.

Frequently Asked Questions

Should I size my electrical connection to the full connected load?

Not necessarily — utilities and electricians often apply a diversity factor since not all appliances run simultaneously. However, your sanctioned load should be adequate to safely cover your realistic peak usage.

What voltage does this calculator assume?

This assumes a standard 230V single-phase supply (common in India and many other countries) for the approximate current (amps) calculation.

This calculator is provided for general informational and estimation purposes only. Results should not be treated as professional financial, tax, legal, medical, or engineering advice. Always verify critical calculations with a qualified professional or official source before making decisions.