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Wire Size Calculator
Calculate recommended wire size in sq mm for Indian standards based on current, voltage and cable length
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Result
Min. Cross Section
1.04 sq mm
Recommended Wire Size
1.5 sq mm
Voltage Drop
4.59 V
Voltage Drop %
2.08% (OK)
Indian Standard Wire Size Reference
| Size (sq mm) | Max Amps (Cu) | Max Amps (Al) | Typical Usage |
|---|---|---|---|
| 0.5 | 3A | 2A | Signal wires, small electronics |
| 0.75 | 5A | 3.5A | LED lights, small appliances |
| 1 | 8A | 6A | Light circuits, fans |
| 1.5 | 10A | 8A | Light points, fan circuits |
| 2.5 | 16A | 12A | Power sockets, AC (1 ton) |
| 4 | 25A | 18A | AC (1.5-2 ton), geyser |
| 6 | 32A | 24A | Sub-main, heavy AC, motor |
| 10 | 45A | 35A | Main line, 3-phase appliance |
| 16 | 60A | 46A | Main incoming, heavy loads |
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About Wire Size Calculator
Wire Size Calculator is a free online tool available on SabTools.in. Calculate recommended wire size in sq mm for Indian standards based on current, voltage and cable length. This tool is completely free to use, requires no signup, and works instantly in your browser. Your data stays private as all calculations happen on your device.
How to use Wire Size Calculator?
- Enter the required values in the input fields above
- The results will be calculated automatically in real-time
- You can copy or share the results as needed
Why use SabTools.in?
- 100% free โ no signup, no limits, no hidden fees
- Lightning fast โ runs instantly in your browser
- Privacy first โ your data never leaves your device
- Mobile friendly โ works on any phone, tablet or computer
- Made for India โ Indian number formats, GST, EMI & more
Frequently Asked Questions
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