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1 Ton Dedicated Energy Model • Sized for 100–120 Sq Ft

1 Ton AC Power Consumption & Bill

Calculate electricity usage in units (kWh) and monthly electric bills for 1 Ton (12,000 BTU) split and inverter air conditioners per hour, 8 hours, and 24 hours.

For ~130–180 sq ft room
Recommended: 24°C (75°F)
8 hrs/day
$/kWh
Estimated Bill & Power
100% Client-Side
Cost for 1 Hour AC
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Daily Cost (8 hrs)
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Monthly AC Bill—
Estimated Energy Cost—
4-Month Summer Season
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Efficiency Insight: Running at 24°C instead of 18°C saves up to — on your monthly bill without sacrificing comfort.
⚡Quick Answer • 1 Ton AC Electricity Consumption

How much power does a 1 Ton AC consume per hour?

A 1 Ton 5-Star inverter AC consumes roughly 0.55 to 0.70 units (kWh) per hour when maintaining a comfortable 24°C room temperature. Fixed-speed non-inverter models consume about 1.0 to 1.15 units per hour. At an average electric rate of $0.16/unit, running a 1 Ton AC costs between $0.09 and $0.11 per hour.

1 Hour Runtime (24°C):0.55 – 0.70 Units (kWh)
8 Hours / Day (US $0.16):$0.70 – $0.90 / day
Monthly Bill (8 hrs/day):$21.00 – $27.00 / mo
Looking for other AC capacities?Compare all tonnage ratings:
1.5 Ton AC Guide →|All Tonnages Calculator →
Efficiency Benchmark

1 Ton AC Power Consumption: 3-Star vs. 5-Star Inverter

A 1 Ton (12,000 BTU/hr) unit is ideal for bedrooms between 90 and 120 square feet. Because the thermal mass of a small room stabilizes faster, an inverter compressor throttles down quickly to minimal wattage draw:

AC Technology & Star RatingAverage Steady DrawUnits in 1 HourUnits in 8 HoursMonthly Bill (US $0.16)Monthly Bill (India ₹7.5)
5-Star Inverter Split AC~550W – 680W0.55 – 0.68 kWh4.4 – 5.4 kWh$21.10 – $25.90₹990 – ₹1,215
3-Star Inverter Split AC~720W – 850W0.72 – 0.85 kWh5.8 – 6.8 kWh$27.60 – $32.60₹1,295 – ₹1,530
Standard Non-Inverter (Fixed Speed)~1,000W – 1,150W1.00 – 1.15 kWh8.0 – 9.2 kWh$38.40 – $44.20₹1,800 – ₹2,070
1 Ton Window AC~1,100W – 1,250W1.10 – 1.25 kWh8.8 – 10.0 kWh$42.20 – $48.00₹1,980 – ₹2,250

1 Ton AC Electricity Units by Daily Operating Hours

Projected electrical units (kWh) and bill amounts for a 1 Ton 5-Star inverter AC running at 24°C (approx 0.60 kWh/hr effective steady consumption):

1 Hour / Day0.60 Units$2.88 / mo
4 Hours / Day2.40 Units$11.52 / mo
8 Hours / Day4.80 Units$23.04 / mo
12 Hours / Day7.20 Units$34.56 / mo
16 Hours / Day9.60 Units$46.08 / mo
24/7 Running14.40 Units$69.12 / mo
FAQ

Frequently Asked Questions: 1 Ton AC Power Consumption

How many units does a 1 Ton AC consume in 1 hour?
Under standard conditions at 24°C (75°F), a 1 Ton 5-Star Inverter AC consumes between 0.55 and 0.70 units (kWh) per hour once the room temperature stabilizes. A 3-Star inverter 1 Ton AC draws about 0.75 to 0.85 units per hour, while an older non-inverter model draws 1.0 to 1.15 units per hour.
How many units does a 1 Ton AC consume in 8 hours?
Running a 1 Ton inverter AC for 8 hours daily uses approximately 4.5 to 6.0 units (kWh) of electricity. In the US at an average rate of $0.16/unit, 8 hours of cooling costs around $0.72 to $0.96. In India at ₹7.50/unit, 8 hours costs approximately ₹34 to ₹45.
What is the monthly electricity bill for a 1 Ton AC?
For 8 hours of daily use over a 30-day month (240 total hours), a 1 Ton inverter AC uses 135 to 180 units per month, costing approximately $21.60 to $28.80 (or ₹1,010 to ₹1,350). Operating 16 hours daily will consume 270 to 360 units monthly ($43 to $58 / ₹2,025 to ₹2,700).
Is a 1 Ton AC sufficient for a bedroom?
Yes. A 1 Ton AC (12,000 BTU/hr) is engineered specifically for rooms up to 100 to 120 square feet (9 to 11 square meters) with standard ceiling heights. If your bedroom is on the top floor directly under the roof or receives direct afternoon sunlight, a 1.5 Ton AC may cool faster and cycle off more frequently.

Need to Calculate for Other Air Conditioners?

Explore our comprehensive collection of electrical calculation tools:

AC Electricity Cost CalculatorCompare 1 Ton to 2.5 Ton ACs1.5 Ton AC Power ConsumptionLiving room cooling breakdownGeneral kWh CalculatorConvert Watts & Hours to kWh