1. What is an Electrical Load Calculator?

Definition: This calculator computes the total electrical load in kilowatts (kW) by summing individual loads in watts and converting to kW.

Purpose: Helps electricians, engineers, and homeowners determine total power requirements for circuits or systems.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( P_{kW} \) — Total power in kilowatts
• \( \sum P_{load} \) — Sum of all individual loads in watts

Explanation: Individual loads in watts are summed, then divided by 1000 to convert to kilowatts (1 kW = 1000 W).

3. Importance of Load Calculation

Details: Proper load calculation ensures electrical systems are properly sized, prevents circuit overloads, and meets safety standards.

4. Using the Calculator

Tips: Enter up to three load values in watts. Leave unused fields blank or zero. The calculator sums all inputs and converts to kW.

5. Frequently Asked Questions (FAQ)

Q1: Why convert watts to kilowatts?
A: Kilowatts are the standard unit for electrical system capacity and utility billing.

Q2: What's a typical residential load?
A: Homes typically range from 3-10 kW, with larger homes up to 20 kW or more.

Q3: Should I include all appliances?
A: Include only those that may operate simultaneously for accurate sizing.

Q4: How do I find appliance wattage?
A: Check nameplate ratings or product specifications. Some appliances list amps and volts instead (P = I × V).

Q5: Does this include safety factors?
A: No, consult electrical codes for required safety margins (typically 125% of continuous loads).