Cable Size Calculator

Enter your load (watts) to find the correct cable size for Pakistan (230V)

Select Application:

Load in Watts:

Cable Length (meters):

Recommended Cable Size

4mm

Quick Reference Table

Cable Size	Safe Load	Current	Common Use
1.5mm	2.0 kW	10A	Lights, fans, phone chargers
2.5mm	3.2 kW	16A	1 ton AC, small appliances
4mm	5.0 kW	25A	1.5-2 ton AC, geyser
6mm	6.5 kW	32A	3kW-5kW solar, 2 ton AC
10mm	9.0 kW	40A	5kW-10kW solar, main connection
16mm	12.0 kW	63A	10kW-15kW solar, commercial
25mm	16.0 kW	80A	15kW-20kW solar, industrial
35mm	20.0 kW	100A	Large industrial loads

Step 1: Enter your total load in watts

Add up all appliances on this circuit. Example: 1.5 ton AC (1500W) + Lights (200W) = 1700W

Step 2: Enter cable length

Measure distance from DB to appliance. Longer cables need thicker wire to avoid voltage drop.

Step 3: Get your result

Calculator shows minimum safe cable size. Always round UP to next size for safety margin.

Our experts can help you select the right cable