What is 1 unit of electricity? (kWh)
1 unit = 1 kWh = 1000 W for 1 hour; hours per unit = 1000 ÷ watts (LED 100 h, geyser 30 min) and how to estimate a monthly bill.
What is "1 unit" on your electricity bill? ⚡🧾
1️⃣ 1 UNIT = 1 kWh: 1000 watts running for 1 hour. (Or 100 W for 10 hours, or 10 W for 100 hours — watts × hours ÷ 1000 = units.)
2️⃣ HOW LONG FOR 1 UNIT? Hours = 1000 ÷ watts:
💡 LED bulb 10 W → 100 hours
🌀 Ceiling fan 75 W → about 13 hours
❄️ AC 1.5 kW → about 40 minutes
🚿 Geyser 2 kW → just 30 minutes!
3️⃣ YOUR BILL: geyser 2 kW × 1 hour a day × 30 days = 60 units a month. At ₹7 per unit that's about ₹420 just for hot water (rates vary by state and slab).
💡 Fun fact: the red LED on many digital meters blinks 3200 times for every unit (3200 imp/kWh — check your meter's label).
Read the voiceover (transcript)
- What is one unit on your bill?
- One thousand watts, running for one hour. That's one kilowatt-hour: one unit!
- An LED bulb takes a hundred hours to use one unit. A geyser? Just thirty minutes!
- Geyser, one hour a day? Sixty units a month!
- Watts times hours. That's your bill!
- Next: how long your inverter lasts! Follow for part seven!
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