Free Tool
Inverter & Battery Calculator.
Select your appliances and backup hours — get the exact inverter and battery recommended for your home.
Select the appliances you use at home and how many hours of backup you need. We'll instantly recommend the right inverter capacity and battery size.
⚡ Essential Appliances
Ceiling Fan
75W each
LED Light
10W each
CFL / Tubelight
25W each
Mobile Charger
10W each
Wi-Fi Router
15W each
🏠 Comfort Appliances
LED TV (32–43″)
80W each
Laptop
65W each
Refrigerator (Small)
150W each
Refrigerator (Double)
250W each
Mixer / Grinder
500W each
Desert Cooler
200W each
🔥 Heavy Appliances
AC (1 Ton)
1200W each
AC (1.5 Ton)
1800W each
Geyser / Water Heater
2000W each
Washing Machine
500W each
Water Pump (0.5 HP)
400W each
⏱ How many hours of backup do you need?
Live Load Meter
Click "Calculate" to see your recommendation
Step 1 — Select Appliances
Choose each device you run during a power cut and set the quantity.
Step 2 — Set Backup Duration
Tell us how many hours of backup you need. More hours = bigger battery.
Step 3 — Get Your Recommendation
We calculate the exact inverter VA and battery Ah — different for every load and duration.
Still confused? Talk to our experts.
Our team will assess your exact requirements and recommend the perfect inverter + battery combo.